Ball bearing table: numbers, sizes and markings

In our article we will show in detail online the tables and dimensions of ball bearings in millimeters according to GOST. These parts are intermediate links between rotating axes and shafts. They also take on radial or longitudinal loads and transfer them to other parts of the mechanism. With their help, rotation, rocking or regular movement with a low coefficient of friction is ensured.

Kinds

They are classified according to the type of force transmission and the design of the supporting elements (balls, rollers, needles and other complex geometric shapes). All units for this purpose are built on the rolling principle.

Ball ones are divided into:

• • radial;
• • self-centering;
• • supporting;
• • radial contact.

Roller:

• • radial and thrust with cylindrical rolling elements;
• • with conical rotating parts.

Registry:

Let's look at the technical parameters in more detail.

Table of seating dimensions and series of single-row radial ball bearings

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	Weight in kg	Scheme
6003	103	17	35	10	0,04
6004	104	20	42	12	0,07
6005	105	25	47	12	0,08
6006	106	30	55	13	0,12
6007	107	35	62	14	0,15
6008	108	40	68	15	0,19
6009	109	45	75	16	0,24
6010	110	50	80	16	0,26
6011	111	55	90	18	0,38
6012	112	60	95	18	0,41
6013	113	65	100	18	0,44
6014	114	70	110	20	0,6
6015	115	75	115	20	0,64
6016	116	80	125	22	0,85
6017	117	85	130	22	0,89
6018	118	90	140	24	1,17
6019	119	95	145	24	1,22
6020	120	100	150	24	1,27
6021	121	105	160	26	1,59
6022	122	110	170	26	1,95

This type is the most common and is used in mechanisms that have rotating parts: in electric motors, in gearboxes, in belt and chain drives of various sizes, from wristwatches to the power plants of an ocean liner.

The specific markings, table of sizes and numbers of bearings by diameter are the same for all types. They differ in technological features, level of protection and the presence of mounting grooves in the unit.

With one protective washer

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	Weight in kg	Scheme
6003 Z	60103	17	35	10	0,04
6004 Z	60104	20	42	12	0,07
6005 Z	60105	25	47	12	0,08
6006 Z	60106	30	55	13	0,12
6007 Z	60107	35	62	14	0,16
6008 Z	60108	40	68	15	0,2
6009 Z	60109	45	75	16	0,25
6010 Z	60110	50	80	16	0,26
6011 Z	60111	55	90	18	0,39
6012 Z	60112	60	95	18	0,42
6013 Z	60113	65	100	18	0,44
6014 Z	60114	70	110	20	0,62
6015 Z	60115	75	115	20	0,64

The parameters and weight of these parts coincide with the data given above. The only difference for ISO is the additional letter z. For example, 6321 Z. According to GOST, the number 60 is placed in front of the number.

With two protective washers

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	Weight in kg	Scheme
6003 ZZ	80103	17	35	10	0,04
6004 ZZ	80104	20	42	12	0,07
6005 ZZ	80105	25	47	12	0,08
6006 ZZ	80106	30	55	13	0,12
6007 ZZ	80107	35	62	14	0,16
6008 ZZ	80108	40	68	15	0,2
6009 ZZ	8109	45	75	16	0,25
6010 ZZ	80110	50	80	16	0,26
6011 ZZ	80111	55	90	18	0,39
6012 ZZ	80112	60	95	18	0,42
6013 ZZ	80113	65	100	18	0,44
6014 ZZ	80114	70	110	20	0,62
6015 ZZ	80115	75	115	20	0,64
6016 ZZ	80116	80	125	22	1,86

The data for this type of nodes is the same as in the first statement. They only differ in the addition of the symbol ZZ for ISO and for GOST - the additional 80.

With one-sided seal

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	Weight in kg	Scheme
6003RS	160103	17	35	10	0,04
6004RS	160104	20	42	12	0,07
6005RS	160105	25	47	12	0,08
6006RS	160106	30	55	13	0,12
6007RS	160107	35	62	14	0,16
6008RS	160108	40	68	15	0,2
6009RS	160109	45	75	16	0,25
6010RS	160110	50	80	16	0,26
6011RS	160111	55	90	18	0,39
6012RS	160112	60	95	18	0,42
6013RS	160113	65	100	18	0,44
6014RS	160114	70	110	20	0,62
6015RS	160115	75	115	20	0,64
6016RS	160116	80	125	22	1,86
6017RS	160113	85	130	22	0,89
6018RS	160113	90	140	24	1,16

The parameters of these nodes coincide with the register above, with the exception of the letters in the ISO marking and the numbers in GOST. Instead of Z, RS is written, and 10 is inserted before the four-digit number.

Double sided

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	D1 mm	a mm	b mm	Weight, kg	Scheme
6003 2RSТ	750103	17	35	10	33,17	2,06	1,35	0,04
6004 2RSТ	750104	20	42	12	39,75	2,06	1,35	0,07
6005 2RSТ	750105	25	47	12	39,75	2,06	1,35	0,08
6006 2RSТ	750106	30	55	13	52,6	2,08	1,35	0,12
6007 2RSТ	750107	35	62	14	59,61	2,08	1,9	0,15
6008 2RSТ	750108	40	68	15	64,82	2,49	1,9	0,19
6009 2RSТ	750109	45	75	16	72,83	2,49	1,9	0,24
6010 2RSТ	750110	50	80	16	76,81	2,49	1,9	0,25
6011 2RSТ	750111	55	90	18	86,79	2,87	2,7	0,37
6012 2RSТ	750112	60	95	18	91,82	2,87	2,7	0,4

The data for such parts is analogous to the material given in the previous heading. Only the number 2 is inserted before RS, and 180 is written before the number.

With groove on outer ring

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	D1 mm	a mm	b mm	Weight, kg	Scheme
6003N	50103	17	35	10	33,17	2,06	1,35	0,04
6004 N	50104	20	42	12	39,75	2,06	1,35	0,07
6005 N	50105	25	47	12	39,75	2,06	1,35	0,08
6006N	50106	30	55	13	52,6	2,08	1,35	0,12
6007 N	50107	35	62	14	59,61	2,08	1,9	0,15
6008N	50108	40	68	15	64,82	2,49	1,9	0,19
6009 N	50109	45	75	16	72,83	2,49	1,9	0,24
6010N	50110	50	80	16	76,81	2,49	1,9	0,25
6011 N	50111	55	90	18	86,79	2,87	2,7	0,37
6012N	50112	60	95	18	91,82	2,87	2,7	0,4

The ISO marking says 6003 N, according to GOST 50103.

With groove and one protective washer

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	D1 mm	a mm	b mm	Weight, kg	Scheme
6003 ZN	150103	17	35	10	33,17	2,06	1,35	0,04
6004 ZN	150104	20	42	12	39,75	2,06	1,35	0,07
6005 ZN	150105	25	47	12	39,75	2,06	1,35	0,08
6006 ZN	150106	30	55	13	52,6	2,08	1,35	0,12
6007 ZN	150107	35	62	14	59,61	2,08	1,9	0,15
6008 ZN	150108	40	68	15	64,82	2,49	1,9	0,19
6009 ZN	150109	45	75	16	72,83	2,49	1,9	0,24
6010 ZN	150110	50	80	16	76,81	2,49	1,9	0,25
6011 ZN	150111	55	90	18	86,79	2,87	2,7	0,37
6012 ZN	150112	60	95	18	91,82	2,87	2,7	0,4
6013 ZN	150113	65	100	18	96,8	2,87	2,7	0,42

Here the designations are as follows: 6003 ZN or 150103.

With groove and two protective washers

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	D1 mm	a mm	b mm	Weight, kg	Scheme
6003 ZZN	450103	17	35	10	33,17	2,06	1,35	0,04
6004 ZZN	450104	20	42	12	39,75	2,06	1,35	0,07
6005 ZZN	450105	25	47	12	39,75	2,06	1,35	0,08
6006 ZZN	450106	30	55	13	52,6	2,08	1,35	0,12

ISO – 6003 ZZN, GOST – 450103.

With double seal groove

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	Weight in kg	Scheme
6003 2RS	180103	17	35	10	0,04
6004 2RS	180104	20	42	12	0,07
6005 2RS	180105	25	47	12	0,08
6006 2RS	180106	30	55	13	0,12
6007 2RS	180107	35	62	14	0,16
6008 2RS	180108	40	68	15	0,2
6009 2RS	18109	45	75	16	0,25
6010 2RS	180110	50	80	16	0,26
6011 2RS	180111	55	90	18	0,39
6012 2RS	180112	60	95	18	0,42
6013 2RS	180113	65	100	18	0,44
6014 2RS	180114	70	110	20	0,62

The groove is designated by the letter N, and the seal is designated by RS or 2RS.

Not Found

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In table 126—142 show mainly bearings with inner diameter d

up to 100-120 mm, but the corresponding GOSTs provide for values
​​of d
less than and above 100-120 mm, as well as some intermediate sizes
d.
The tables are restrictive in relation to GOST and in terms of bearing series.
The values ​​of the maximum rotation speed nlimit are indicated in the tables for cases where grease is used in bearings.
When using liquid lubricant, the value of the maximum speed npre is increased by approximately 20%.

126. Single-row radial ball bearings (according to GOST 8338-75)

d—

nominal bore diameter of the inner ring;
D is
the nominal diameter of the outer cylindrical surface of the outer ring;
B is
the nominal width of the bearing; r is the nominal coordinate of the mounting chamfer.

Dimensions, mm

Bearing designation	d	D	B	r	Balloons		Weight, kg	S, N	C0, N	n*pre·10-3, min-1
					DW	z
ultra-light series of diameters 9, normal series of widths 1
1000093	3	8	3	0,3	1,59	6	0,0007	560	186	43
1000094	4	11	4	0,3	2	7	0,0025	950	340	40
1000095	5	13	4	0,4	2	8	0,0025	1 080	390	38
1000096	6	15	5	0,4	2,38	8	0,0040	1470	555	38
1000097	7	17	5	0,5	3	7	0,0050	2020	777	36
1000098	8	19	6	0,5	3	8	0,0080	2240	880	34
1000099	9	20	6	0,5	3,5	7	0,0080	2680	1050	32
1000900	10	22	6	0,5	3,97	7	0,0090	3340	1 350	30
1000901	12	24	6	0,5	3,97	7	0,010	3390	1 350	28
1000902	15	28	7	0,5	3,18	12	0,017	3480	1480	22
1000903	17	30	7	0,5	3,5	11	0,018	3640	1 650	20
1000904	20	37	9	0,5	5	10	0,035	6550	3040	18
1000905	25	42	9	0,5	5	12	0,042	7320	3680	15
1000906	30	47	9	0,5	5	13	0,049	7590	3990	13
1000907	35	55	10	1,0	5,95	13	0,086	10400	5650	11
1000908	40	62	12	1,0	6,35	14	0,11	12200	6920	10
1000909	45	68	12	1,0	7,14	13	0,15	14300	8 130	9
1000911	55	80	13	1,5	6,35	18	0,19	16000	10000	7,5
1000912	60	85	13	1,5	7,14	19	0,26	16400	10600	6,3
1000915	75	105	16	1,5	8,73	18	0,38	24300	16800	-5,6

Provided d

=1.2, 80÷340mm

Extra light diameter series 1, narrow width series 7

7000101	12	28	7	0,5	4,76	8	0,018	5070	2240	26
7000102	15	32	8	0,5	4,76	8	0,025	5590	2500	22
7000103	17	35	8	0,5	5,16	9	0,036	6050	2800	19
7000104	20	42	8	0,5	—	—	0,06	7020	3400	—
7000105	25	47	8	0,5	5,56	11	0,06	7610	4000	14
7000106	30	55	9	0,5	5,56	14	0,10	11 200	5850	12
7000107	35	62	9	0,5	5,56	15	0,11	12400	6950	10
7000108	40	68	9	0,5	6,35	16	0,13	13300	7800	9,5
7000109	45	75	10	1,0	6,35	17	0,17	15600	9300	9,0
7000110	50	80	10	1,0	6,35	18	0,18	16300	10000	8,5
7000111	55	90	11	1,0	7,14	17	0,28	17000	11 700	7,5
7000112	60	95	11	1,0	7,14	18	0,29	18600	12400	6,7
7000113	65	100	11	1,0	7,14	19	0,34	19000	13 100	6,3
7000114	70	110	13	1,0	7,94	18	0,45	22200	15300	6,0

Provided d

=75÷280mm

Extra light diameter series 1, narrow width series 0

16	6	17	6	0,5	—	—	0,008	2200	860	—
17	7	19	6	0,5	3,97	6	0,009	2200	1 160	34
18	8	22	7	0,5	3,97	7	0,012	3250	1 340	32
100	10	26	8	0,5	4,76	7	0,019	4620	1 960	30
101	12	28	8	0,5	4,76	8	0,022	5070	2240	26
104	20	42	12	1,0	6,35	9	0,07	9360	4500	17
105	25	47	12	1,0	6,35	10	0,08	11 200	5600	15
106	30	55	13	1,5	7,14	11	0,12	13300	6800	12
107	35	62	14	1,5	7,94	11	0,16	15900	8500	10
108	40	68	15	1,5	7,94	12	0,19	16800	9300	9,5
109	45	75	16	1,5	8,73	13	0,24	21 200	12200	9,0
110	50	80	16	1,5	8,73	12	0,25	21 600	13200	8,5
111	55	90	18	2,0	10,32	13	0,39	28 100	17000	7,5
112	60	95	18	2,0	11,11	12	0,39	29600	18300	6,7
113	65	100	18	2,0	10,32	15	0,45	30700	19600	6,3
114	70	110	20	2,0	12,3	13	0,60	37700	24500	6,0
115	75	115	20	2,0	12,3	14	0,66	39700	26000	5,6
116	80	125	22	2,0	13,5	14	0,85	47700	31 500	5,3
117	85	130	22	2,0	13,5	14	0,91	49400	33500	5,0
118	90	140	24	2,5	14,3	15	1,20	57200	39000	4,8
120	100	150	24	2,5	14,3	15	1,29	60500	41 500	4,3

Provided d

=105÷360mm

Light diameter series 2, narrow width series 0

23	3	10	4	0,3	1,59	7	0,0016	490	217	40
24	4	13	5	0,4	2,38	6	0,003	900	415	38
25	5	16	5	0,5	3,18	6	0,003	1 480	740	36
26	6	19	6	0,5	3,97	6	0,008	2 170	1 160	32
27	7	22	7	0,5	3,97	7	0,013	3250	1 350	30
29	9	26	8	1,0	4,76	7	0,019	4620	1 960	26
200	10	30	9	1,0	5,95	6	0,030	5900	2650	24
201	12	32	10	1,0	5,56	7	0,037	6890	3 100	22
202	15	35	11	1,0	5,95	8	0,045	7800	3550	19
203	17	40	12	1,0	7,14	7	0,060	9560	4500	17
204	20	47	14	1,5	7,94	8	0,10	12700	6200	15
205	25	52	15	1,5	7,94	9	0,12	14000	6950	12
206	30	62	16	1,5	9,53	9	0,20	19500	10000	10
207	35	72	17	2,0	11,11	9	0,29	25500	13700	9
208	40	80	18	2,0	12,7	9	0,36	32000	17800	8,5
209	45	85	19	2,0	12,7	9	0,41	33200	18600	7,5
210	50	90	20	2,0	12,7	10	0,47	35 100	19800	7,0
211	55	100	21	2,5	14,29	10	0,60	43600	25000	6,3
212	60	110	22	2,5	15,88	10	0,80	52000	31 000	6,0
213	65	120	23	2,5	16,67	10	0,98	56000	34000	5,3
214	70	125	24	2,5	17,46	10	1,08	61 800	37500	5,0
215	75	130	25	2,5	17,46	11	1,18	66300	41000	4,8
216	80	140	26	3,0	19,05	10	1,40	70200	45000	4,5
217	85	150	28	3,0	19,84	11	1,80	83200	53000	4,3
218	90	160	30	3,0	22,23	10	2,2	95600	62000	3,8
220	100	180	34	3,5	25,4	10	3,2	124 000	79000	3,4

Provided d

=105÷360mm

Medium diameter series 3, narrow width series 0

34	4	16	5	0,5	3,18	6	0,005	1450	740	35
35	5	19	6	0,5	3,97	6	0,008	2 190	1 160	32
300	10	35	11	1,0	7,14	6	0,05	8060	3750	20
301	12	37	12	1,5	7,94	6	0,06	9750	4650	19
302	15	42	13	1,5	7,94	7	0,08	11 400	5400	17
303	17	47	14	1,5	9,53	6	0,11	13500	6650	16
304	20	52	15	2,0	9,53	7	0,14	15900	7800	13
305	25	62	17	2,0	11,51	7	0,23	22500	11 400	11
306	30	72	19	2,0	12,3	8	0,34	28 100	14600	9
307	35	80	21	2,5	14,29	7	0,44	33200	18 000	8,5
308	40	90	23	2,5	15,08	8	0,63	41000	22400	7,5
309	45	100	25	2,5	17,46	8	0,83	52700	30000	6,7
310	50	110	27	3,0	19,05	8	1,08	61 800	36000	6,3
311	55	120	29	3,0	20,64	8	1,35	71 500	41 500	5,6
312	60	130	31	3,5	22,23	8	1,70	81900	48000	5,0
313	65	140	33	3,5	23,81	8	2,11	92300	56000	4,8
314	70	150	35	3,5	25,4	8	2,60	104 000	63000	4,5
315	75	160	37	3,5	26,99	8	3,10	112000	72 500	4,3
316	80	170	39	3,5	28,58	8	3,60	124 000	80000	3,8
317	85	180	41	4,0	30,16	8	4,30	133 000	90000	3,6
318	90	190	43	4,0	31,75	8	5,10	143 000	99000	3,4
320	100	215	47	4,0	36,51	8	7,00	174 000	132000	3,0

Provided d

=110÷150mm

Heavy diameter series 4, narrow width series 0

403	17	62	17	2,0	12,7	6	0,27	22900	11 800	12
405	25	80	21	2,5	16,67	6	0,5	36400	20400	9
406	30	90	23	2,5	19,05	6	0,72	47000	26700	8,5
407	35	100	25	2,5	20,64	6	0,93	55300	31 000	7,0
408	40	110	27	3,0	22,23	6	1,20	63700	36500	6,7
409	45	120	29	3,0	23,02	7	1,52	76 100	45500	6,0
410	50	130	31	3,5	25,4	7	1,91	87 100	52000	5,3
411	55	140	33	3,5	26,99	7	2,3	100000	63000	5,0
412	60	150	35	3,5	28,58	7	2,8	108000	70000	4,8
413	65	160	37	3,5	30,16	7	3,4	119000	78000	4,5
414	70	180	42	4,0	34,93	7	5,3	143000	105000	3,8
416	80	200	48	4,0	38,1	7	7,0	163 000	125000	3,4
417	85	210	52	5,0	39,69	7	8,0	174 000	135000	3,2
418	90	225	54	5,0	—	—	11,4	186 000	146000	—

* With plastic lubricant. Note. The weight of the bearings is calculated with a cage stamped from a steel sheet with a steel density of 7.85 kg/dm3. An example of the designation of an extra-light radial ball bearing of diameter series 1, width series 0 with d

= 50 mm,
D
= 80 mm,
H
= 16 mm:
Bearing according to GOST 8338-75
127. Single-row radial ball bearings with protective washers (according to GOST 7242-81)

Dimensions, mm

Bearing size designations		d	D	IN	G	Weight, kg	S , N	C 0,H	nprev10-3, min-1.
with one protective washer	with two protective washers
Diameter series 1
60018	80018*	8	22	7	0,5	0,012	3250	1340	32
60104	80104	20	42	12	1,0	0,070	9360	4500	17
60106	80106	30	55	13	1.5	0.120	13 300	6800	12
*For bearing 80018 n pre = 25,000. Available d = 7, 9, 10÷17, 25, 35 ÷ 120 mm.
Diameter series 2
60024 60025 60026 60027 60029 60200 60201 60202 60203 60204 60205 60206 60207 60208 60209 60210 60212 60214 60218 60220	80024 80025 80026 80027 80029 80200 80201 80202 80203 *1 80204 80205 80206 *2 80207 80208 *3 80209 80210 80212 80214 80218 802220	4 5 6 7 9 10 12 15 17 20 25 30 35 40 45 50 60 70 90 100	13 16 19 22 26 30 32 35 40 47 52 62 72 80 85 90 110 125 160 180	5 5 6 7 8 9 10 11 12 14 15 16 17 18 19 20 22 24 30 34	0,3 0,5 0,5 0,5 1,0 1,0 1,0 1,0 1,0 1,5 1,5 1,5 2,0 2,0 2,0 2,0 2,5 2,5 3,0 3,5	0,004 0,006 0,010 0,013 0,019 0,030 0,037 0,045 0,065 0,106 0,12 0,19 0,29 0,36 0,41 0,46 0,80 1,06 2,20 3,16	900 1480 2170 3250 4620 5900 6890 7800 9560 12700 14000 19500 25500 32000 33200 35100 52000 61800 95600 124000	415 740 1160 1350 1960 2650 3100 3550 4500 6200 6950 10000 13700 17800 18600 19800 31000 37500 62000 79000	38 36 32 30 26 24 22 19 17 15 12 10 9,0 8,5 7,5 7,0 6,0 5,0 — 3,4
•1 For bearing 80203 n pred = 12,500 min-1. •2 For bearing 80206 n pre = 8000 min-1. •3 For bearing 80208 n pre = 6300 min-1. Available d = 3, 55, 65, 75, 80, 85, 110 ÷ 140 mm.
Diameter series 3
60302 60303 60305 60306 60307 60308 60309 60310 60311 60314	80302 80303 80305 80306 80307 80308 80309 80310 80311 80314	15 17 25 30 35 40 45 50 55 70	42 47 62 72 80 90 100 110 120 150	13 14 17 19 21 23 25 27 29 35	1,5 1,5 2,0 2,0 2,5 2,5 2,5 3,0 3,0 3,5	0,08 0,11 0,23 0,34 0,44 0,64 0,80 1,08 1,37 2,50	11400 13500 22500 28100 33200 41000 52700 61800 71500 104000	5400 6650 11400 14600 18000 22400 30000 36000 41500 63000	17 16 11 9 8,5 7,5 6,7 6,3 5,6 4,5
Note. The standard applies to radial ball bearings with protective washers of the following diameter series: 1; 2; 3 and 9. An example of the designation of a single-row radial ball bearing, with one protective washer, light series of diameters 2 s d = 6 mm, D = 19 mm and B = 6 mm: Bearing 60026 GOST 7242-81

128. Single-row radial ball bearings with seal (according to GOST 8882-75)

Bearings of type 160000 can be manufactured with rings from bearings of type 180000.

Dimensions, mm

Diameter series 2 and 5, width series 0
Designation of bearings of diameter series 2 and 5 for types				d	D	B for diameter series		r	r1	Weight kg	S, N episode 2	So, N episode 2	S, N series 5	Co, N episode 5	n pre10-3, min-1
160000		180000				2	5
160200 160201 160202 160203 160204 160205 160208	160500 160501 160502 160503 160504 160505 160508	180200 180201 180202 180203 180204 180205 180208	180500 180501 180502 180503 180504 180505 180508	10 12 15 17 20 25 40	30 32 35 40 47 52 80	9 10 11 12 14 15 18	14 14 14 16 18 18 23	1,0 1,0 1,0 1,0 1,5 1,5 2,0	0,5 0,5 0,5 1,0 1,5 1,5 2,0	0,05 0,06 0,06 0,08 0,14 0,15 0,45	5900 6890 7800 9560 12700 14000 32000	2650 3110 3550 4500 6200 6950 17800	5900 6890 7800 9560 12700 14000 32000	2650 3100 3550 4500 6200 6950 17800	— 15 — 12 10 8,5 5,6
An example of the designation of a single row radial ball with one bearing seal diameter series 2 s d = 25 mm, D = 52 mm and B = 15 mm: Bearing 160205 GOST 8882-75

129. Radial ball bearings with a locking groove on the outer ring and thrust rings according to GOST 2893-82

Bearing

The thrust ring is in a free state

*Dimensions D2 and g refer to the thrust ring mounted on the bearing.

Dimensions, mm

Bearing designation	d	D	D1		B	a		b		r	C, H	Co, H	n* pre x x 10-3, min-1	Weight kg
			max.	name		max.	name	max.	name
Diameter series 3
50305 50306 50307 50308 50309 50310 50311 50312	25 30 35 40 45 50 55 60	62 72 80 90 100 110 120 130	59,61 68,81 76,81 86,79 96,80 106,81 115,21 125,22	59,11 68,30 76,30 86,28 96,29 106,30 114,71 124,71	17 19 21 23 25 27 29 31	3,28 3,28 3,28 3,28 3,28 3,28 4,06 4,06	3,07 3,07 3,07 3,07 3,07 3,07 3,86 3,86	2,2 2,2 2,2 3,0 3,0 3,0 3,4 3,4	1,9 1,9 1,9 2,7 2,7 2,7 3,1 3,1	2,0 2,0 2,5 2,5 2,5 3,0 3,0 3,5	22500 28100 33200 41000 52700 61800 71500 81900	11400 14600 18000 22400 30000 36000 41500 48000	11 9 8,5 7,5 6,7 6,3 5,6 5,0	0,23 0,35 0,43 0,63 0,79 1,06 1,33 1,6
Diameter series 4
50406 50408 50410 50412	30 40 50 60	90 110 130 150	86,79 106,81 125,22 145,24	86,28 106,80 124,71 144,73	23 27 31 35	3,28 3,28 4,06 4,90	3,07 3,07 3,86 4,65	3,0 3,0 3,4 3,4	2,7 2,7 3,1 3,1	2,5 3,0 3,5 3,5	47000 63700 87100 108000	26700 36500 52000 70000	8,5 6,7 5,3 4,8	0,72 1,17 1,88 2,80

Thrust rings in free state

Dimensions, mm

D	D1	D2		l		f		g	g1 (deviation according to H14)
		max.	name	max.	name	max.	name
Medium diameter series 3, heavy series diameter 4
62 72 80 90 100 110 120 130 150	67,7 78,6 86,6 96,5 106,5 116,5 129,7 139,7 159,7	59,0 68,2 76,2 86,2 96,2 106,2 114,6 124,6 144,5	58,4 67,6 75,6 85,6 95,4 105,4 113,8 123,8 143,3	4,04 4,85 4,85 4,85 4,85 4,85 7,21 7,21 7,21	3,89 4,70 4,70 4,70 4,70 4,70 7,06 7,06 7,06	1,7 1,7 1,7 2,46 2,46 2,46 2,82 2,82 2,82	1,60 1,60 1,60 2,36 2,36 2,36 2,72 2,72 2,72	4 5 5 5 5 5 7 7 7	2,6 3,6 3,6 3,6 3,6 3,6 5,3 5,3 5,3
Designation of a radial single-row ball bearing with a locking groove on the outer ring of series 3 with d = 40 mm, D = 90 mm and B = 23 mm: Bearing 50308 GOST 2893-82

130. Radial spherical double-row ball bearings (according to GOST 28428-90)

type 1000 with cylindrical bore

type 111000 with tapered bore

Dimensions, mm

Bearing type designation		d	D	B	r	Balloons		C, H	Co, H	n pre x x 10-3, min-1	Weight *, kg
1000	111000					Dw _	z
Diameter series 2, width series 0
1005 1006 1007 1008	—	5 6 7 8	19 19 22 22	6 6 7 7	0,5	3,18 3,18 3,18 3,18	8 8 10 10	2150 2150 2650 2650	540 540 655 655	32 32 30 30	0,009 0,009 0,014 0,014
1009 1200 1201 1202 1203	—	9 10 12 15 17	26 30 32 35 40	8 9 10 11 12	1,0	3,97 4,76 4,76 5,56 5,56	9 9 10 10 12	3900 5530 5590 7410 7930	930 1370 1500 2040 2420	26 24 22 19 18	0,022 0,033 0,040 0,050 0,073
1204 1205 1206	111204 111205 111206	20 25 30	47 52 62	14 15 16	1,5	6,35 6,14 7,94	12 12 14	9950 12100 15600	3180 4000 5800	15 13 10	0,12 0,14 0,22
1207 1208 1209 1210	111207 111208 111209 111210	36 40 45 50	72 80 85 90	17 18 19 20	2,0	7,94 8,73 9,53 9,53	16 17 16 18	15900 19000 21600 22900	6600 8550 9600 10800	9 8,5 7,5 7,0	0,32 0,42 0,47 0,53
1211 1212 1213 1214 1215	111211 111212 111213 111214 111215	55 60 65 70 75	100 110 120 125 130	21 22 23 24 25	2,5	10,32 11,11 11,11 11,9 12,7	19 19 21 20 20	26500 30200 31200 34500 39000	13300 15500 17200 18700 21500	6,3 5,6 5,3 5,0 4,8	0,71 0,90 1,15 1,26 1,36
1216 1217 1218	111216 111217 111218	80 85 90	140 150 160	26 28 30	3,0	12,7 14,29 15,86	22 21 19	39700 48800 57200	23500 28500 32000	1,5 4,0 3,8	1,67 2,10 2,52
1220 1222	111220 111222	100 110	180 200	34 38	3,5	17,46 19,84	20 20	68900 88400	40500 52000	3,4 3,0	3,70 5,15
Diameter series 5
1506 1507 1508 1509 1510 1511 1512 1513	111506 111507 111508 111509 111510 111511 111512 111513	30 35 40 45 50 55 60 65	62 72 80 85 90 100 110 120	20 23 23 23 23 25 28 31	1,5 2,0 2,0 2,0 2,0 2,5 2,5 2,5	7,94 9,53 9,53 9,53 9,53 — — —	14 14 16 18 19 — — —	15300 21600 22500 23400 23400 26500 33800 43600	5700 8200 9450 10700 11500 13400 16600 21600	9,5 8,5 7,5 7,0 6,3 — — —	0,26 0,40 0,50 0,54 0,59 0,81 1,09 1,46
Diameter series 3
1300	—	10	35	11	1,0	5,56	9	7250	2000	18	0,06
1301 1302 1303		12 15 17	37 42 47	12 13 14	1,5	6,35 6,35 7,14	9 10 11	9360 9560 12500	2600 2800 3660	18 17 14	0,07 0,09 0,13
1304 1305 1306	111304 111305 111306	20 25 30	52 62 72	15 17 19	2,0	7,14 8,73 9,53	12 12 13	12500 17800 21200	3660 6000 7700	12 9,5 9,0	0,16 0,26 0,39
1307 1308 1309	111307 111308 111309	35 40 45	80 90 100	21 23 25	2,5	10,32 11,11 12,7	14 15 15	25100 29600 37700	9800 12200 15900	7,5 6,7 6,3	0,51 0,71 0,96
1310 1311	111310 111311	50 55	110 120	27 29	3,0	14,29 15,08	13 15	43600 50700	17500 22500	5,6 5,0	1,21 1,58
1312 1313 1314 1315 1316	111312 111313 111314 111315 111316	60 65 70 75 80	130 140 150 160 170	31 33 35 37 39	3,5	15,88 16,67 18,26 19,05 20,64	16 16 16 16 15	57200 61800 74100 79300 88400	26500 29500 35500 38500 42000	4,5 4,3 4,0 3,8 3,6	1,96 2,5 3,0 3,6 4,2
1317 1318 1320	111317 111318 111319	85 90 100	180 190 215	41 43 47	4,0	21,43 23,81 26,99	16 15 15	97500 117000 133600	48500 56000 64000	3,4 3,2 2,8	5,0 5,8 8,3
Diameter series 6
1605 1606	111605 111606	25 30	62 72	24 27	2,0	10,32 11,91	11 11	24200 31200	7500 10000	9,5 8,5	0,34 0,50
1607 1608 1609	111607 111608 111609	35 40 45	80 90 100	31 33 36	2,5	13,49 14,29 15,08	11 12 12	39700 44900 54000	12900 15700 19400	7,0 6,3 5,6	0,68 0,93 1,23
1610 1611	111610 111611	50 55	110 120	40 43	3,0	17,46 19,05	12 12	63700 76100	23600 28000	5,3 4,5	1,61 2,10
1612 1613 1614 1616	111612 111613 111614 111616	60 65 70 80	130 140 150 170	46 48 150 170	3,5	20,64 21,43 23,02 26,99	12 13 13 13	87100 95600 111000 135000	33000 38500 44500 58000	4,0 3,6 3,2 2,6	2,60 3,20 3,92 6,10
Example of designation of a double row spherical deep groove ball bearing, type 1000, diameter series 3 s d = 35 mm, D= 80 mm, B = 21 mm: Bearing 1307 GOST 28428-90
* Weight is given for bearings type 1000.

Bearing type designations		Balloons		Design parameters
				e	Y		Y 0	X
1000	111000	Dw	z		F0/Fr £e	F0/Fr >e		F0/Fr £e	F0/Fr >e
Lightweight Diameter Series 2
1005 1006 1007 1008	—	3,18 3,18 3,18 3,18	8 8 10 10	0,34 0,34 0,33 0,33	1,87 1,87 1,89 1,89	2,90 2,90 2,92 2,92	1,96 1,96 1,98 1,98	1,0	0,65
1009 1200 1201 1202 1203	—	3,97 4,76 4,76 5,56 5,56	9 9 10 10 12	0,33 0,32 0,33 0,33 0,31	1,87 1,96 1,88 1,90 2,05	2,89 3,03 2,92 2,94 3,18	1,95 2,05 1,97 1,99 2,15
1204 1205 1206	111204 111205 111206	6,35 6,14 7,94	12 12 14	0,27 0,27 0,24	2,31 2,32 2,58	3,57 3,60 3,99	2,42 2,44 2,70
1207 1208 1209 1210	111207 111208 111209 111210	7,94 8,73 9,53 9,53	16 17 16 18	0,23 0,22 0,21 0,21	2,74 2,87 2,97 3,13	4,24 4,44 4,60 4,85	2,87 3,01 3,11 3,28
1211 1212 1213 1214 1215	111211 111212 111213 111214 111215	10,32 11,11 11,11 11,9 12,7	19 19 21 20 20	0,20 0,19 0,17 0,18 0,18	3,20 3,40 3,70 3,50 3,60	5,00 5,27 5,73 5,43 5,57	3,39 3,57 3,88 3,68 3,77
1216 1217 1218	111216 111217 111218	12,7 4,29 5,86	22 21 19	0,16 0,17 0,17	3,90 3,69 3,76	6,10 5,71 5,82	4,13 3,87 3,94
1220 1222	111220 111222	17,46 19,84	20 20	0,17 0,17	3,63 3,64	5,63 5,64	3,81 3,82
Diameter series 5
1506 1507 1508 1509 1510 1511 1512 1513	111506 111507 111508 111509 111510 111511 111512 111513	7,94 9,53 9,53 9,53 9,53 — — —	14 14 16 18 19 — — —	0,39 0,37 0,33 0,31 0,29 — — —	1.59 1,69 1,90 2,06 2,20 — — —	2,47 2,62 2,94 3,19 3,41 — — —	1,68 1,77 1,99 2,16 2,31 — — —	1,0	0,65
Diameter series 3
1300	—	5,56	9	0,33	1,91	2,96	2	1,0	0,65
1301 1302 1303		6,35 6,35 7,14	9 10 11	0,35 0,33 0,33	1,81 1,89 1,92	2,80 2,92 2,97	1,90 1,98 2,01
1304 1305 1306	111304 111305 111306	7,14 8,73 9,53	12 12 13	0,29 0,28 0,26	2,17 2,26 2,46	3,35 3,49 3,80	2,27 2,36 2,58
1307 1308 1309	111307 111308 111309	10,32 11,11 12,7	14 15 15	0,25 0,23 0,25	2,57 2,61 2,54	3,98 4,05 3,93	2,69 2,74 2,66
1310 1311	111310 111311	14,29 15,08	13 15	0,24 0,23	2,68 2,70	4,14 4,17	2,80 2,82
1312 1313 1314 1315 1316	111312 111313 111314 111315 111316	15,88 16,67 18,26 19,05 20,64	16 16 16 16 15	0,23 0,23 0,22 0,22 0,22	2,80 2,79 2,81 2,84 2,92	4,33 4,31 4,35 4,39 4,52	2,93 2,92 2,95 2,97 3,06
1317 1318 1320	111317 111318 111320	21,43 23,81 26,99	16 15 15	0,22 0,22 0,24	2,90 2,82 2,67	4,49 4,36 4,14	3,04 2,95 2,80
Diameter series b
1605 1606	111605 111606	10,32 11,91	11 11	0,47 0,44	1,34 1,43	2,07 2,22	1,40 1,50	1,0	0,65
1607 1608 1609	111607 111608 111609	13,49 14,29 15,08	11 12 12	0,46 0,43 0,42	1,36 1,46 1,51	2,11 2,25 2,33	1,43 1,52 1,58
1610 1611	111610 111611	17,46 19,05	12 12	0,43 0,41	1,48 1,52	2,29 2,35	1,55 1,60
1612 1613 1614 1616	111612 111613 111614 111616	20,64 21,43 23,02 26,99	12 13 13 13	0,41 0,38 0,38 0,37	1,56 1,65 1,68 1,68	2,41 2,55 2,59 2,61	1,63 1,73 1,76 1,76

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Angular contact ball bearings

This type provides a reaction in two planes along the axis and perpendicular to it. When using a two-row model, the shaft is fixed in space.

Dimensions in the table of angular contact ball bearings, single-row, one-piece

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	Weight in kg	Scheme
7203B	66203	17	40	12	0,07
7204B	66204	20	47	14	0,11
7205 B	166205	25	52	15	0,14
7206B	66206	30	62	16	0,2
7207 B	66207	35	62	17	0,29
7208 B	66208	40	72	18	0,37
7209 B	66209	45	85	19	0,43
7210 B	66210	50	90	20	0,48
7211B	66211	55	100	21	0,63
7212B	66212	60	110	22	0,81
7213B	66213	65	120	23	1
7214B	66214	70	125	24	1,1

Standard sizes and weights of double-row angular contact ball bearings in the table

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	Weight in kg	Scheme
3203B	3056203	17	40	17,5	0,1
3204B	3056204	20	47	20,6	0,17
3205B	3056205	25	52	20,6	0,19
3206B	3056206	30	62	23,8	0,3

Ball diameter in bearing

?The designation of all listed characteristics is made up of signs (numbers). The meanings of the numbers are determined by the places they occupy in the symbol (when reading from right to left): the main and second ones are the symbol for the diameter of the bearing hole (for bearings with a hole diameter of 10 mm or more); the third is a series of diameters; fourth - type of bearings; fifth and sixth – design; the seventh is a series of widths (elevations).

The diameter of the ball (for depiction in the drawings) is calculated by the formula: Dsh = 0.32 (D - d) where d is the diameter of the hole in the inner ring of the bearing, D is the diameter of the outer cylindrical surface of the outer ring of the bearing. The values ​​of these two sizes can be found in GOST standards for the corresponding bearings or in encyclopedias on bearings . Key: Training manual “Design of units and parts of machines”, authors P.F. Dunaev, O.P. Lelikov. Page 161 (for the 2004 edition). The encyclopedic plates in the same book give the values ​​of ball diameters for different bearings of the light and regular series for the diameter of the hole of the inner ring of the bearing in the range from 20 to 80 mm. for balls for various bearings (in technical circumstances the main values ​​are contained).

The classification of rolling bearings is carried out on the basis of the following symptoms: According to the appearance of the rolling elements Ball, Roller (needle, if the rollers are thin and high); Based on the perceived load Radial (load along the shaft axis is not allowed). Radial - persistent, persistent - radial. They absorb loads both along and across the shaft axis. Often the load is along the axis of only one flow. Persistent (load across the shaft axis is not allowed). Linear. They provide mobility along the axis; rotation around the axis is not standardized or impossible. There are rail, telescopic or shaft linear bearings. Ball screw drives. The screw and nut are connected through the rolling elements. By the number of lines of rolling elements Single-row, Double-row, Multi-row; According to the ability to compensate for the misalignment of the shaft and bushing, self-aligning. Non-self-aligning.

Production of balls for bearings When you hold small metal balls made from ball bearings , you can’t help but see how smooth and perfectly round they are. To achieve such shapes and turn light metal wire into shiny metal balls, it is necessary to follow a rather complicated technological process that ensures the production of balls with an accuracy of hundredths of a micron. The ball is one of the most technologically complex parts. The main periods in the manufacture of balls for bearings 1. Cutting blanks for bearing balls From a coil of steel wire, blanks are cut with the approximate shape of the future ball. The workpieces, placed between two disk dies with grooves, are rolled until they are given a spherical shape (maximum pressure 20 tons). This type produces balls with a tolerance of 100 microns from the last size.

Stamped blanks of balls are early subjected to rough abrasive processing in special drums filled with abrasive chips, where the removal of ?‚?¤ Saturn ?? rings and center protrusions. Then the blanks shaped in this way go into ball-processing machines, which consist of a lower stationary and an upper rotating faceplate, equipped with cast iron disks of a special profile, between which the blanks are repeatedly rolled under pressure of up to 20 tons, acquiring a spherical shape with an allowance for subsequent grinding and finishing. Then the balls are subjected to heat treatment: heating, hardening and annealing in special muffle furnaces, giving the balls the required hardness (HRC 60 - 62).

The balls are made according to GOST 3722 from chromium-carbon steel, type ШХ15. At the customer's request, balls can be made from other grades of steel and fabrics. Balls are made heat-treated with a diameter of up to 45 mm of hardness 62... 66 HRC and with a diameter of over 45 mm of hardness 60... 66 HRC, but they can also be created with a different hardness. Balls of the same degree of accuracy are sorted into groups with very strict diameter tolerances. Any group is packaged in some kind of box. The size of the sorted group of balls is indicated in the markings on the box in direct terms of the usual deviation of the nominal diameter of the balls , for example: ball 5.953 - 20 GOST 3722 - 81 deltaDwm L = 1.0 microns.

Related posts:

• Bearing designation
• Wheel bearing size
• Symbol…
• GOST rolling bearings
• Bearing markings

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Thrust ball

This series of parts is designated by two types.

Single

ISO marking	Analogue GOST	d mm	d1 mm	D mm	D1 mm	T mm	Weight, kg	Scheme
51104	8104	20	35	35	20,2	10	0,04
51105	8105	25	42	42	25,2	11	0,06
51106	8106	30	47	47	30,2	11	0,07
51107	8107	35	52	52	35,3	12	0,08
51108	8108	40	60	60	40,2	13	0,12
51109	8109	45	65	65	45,2	14	0,15
51110	8110	50	70	70	50,2	14	0,16
51111	8111	55	78	78	55,2	16	0,24
51112	8112	60	85	85	60,2	17	0,29
51113	8113	65	90	90	65,2	18	0,34
51114	8114	70	95	95	70,2	18	0,36
51115	8115	75	100	100	75,2	19	0,42

There are no English letters in the ISO marking, and numbers begin with 511. According to the state standard, four-digit numbers with a prefix of 81.

With backing ring

ISO marking	Analogue GOST	d mm	D mm	d1 mm	D2 mm	D3 mm	C1 mm	R mm	S mm	T mm	Weight, kg	Scheme
53203+U203	18203	17	35	35	38	26	4,00	32	16	15	0,071
53204+U204	18204	20	40	40	42	30	5,00	36	18	17	0,102
53205+U205	18205	25	47	47	50	36	5,50	40	19	19	0,155
53206+U206	18206	30	52	52	55	42	5,50	45	22	20	0,182
53207+U207	18207	35	62	62	65	48	7,00	50	24	22	0,279
53208+U208	18208	40	68	68	72	55	7,00	56	28,5	23	0,35
53209+U209	18209	45	73	73	78	60	7,50	56	26	24	0,388
53210+U210	18210	50	78	78	82	62	7,50	64	32,5	26	0,464
53211+U211	18211	55	90	90	95	72	9,00	72	35	30	0,752
53212+U212	18212	60	95	95	100	78	9,00	72	32,5	31	0,817
53213+U213	18213	65	100	100	105	82	9,00	80	40	32	0,912
53214+U214	18214	70	105	105	110	88	9,00	80	38	32	0,967
53215+U215	18215	75	110	110	115	92	9,50	90	49	32	1,018

Double row thrust ball bearings

ISO marking	Analogue GOST	d mm	d1 mm	D mm	D1 mm	T mm	S mm	Weight, kg	Scheme
29428	9039428	140	257	280	198	85	86	24,1
29436	9039436	180	342	360	250	109	110	52,6
29452	9039452	260	460	480	346	132	154	107,8
29488	9039488	440	745	780	576	206	260	413

Housing bearings - description and dimensions

Bearing units consist of a single row deep groove ball bearing with two seals and a housing that can be made of cast iron, synthetic rubber or extruded steel and which can be configured in various configurations. A bearing with a spherical ground outer diameter is installed in a corresponding spherical seat in the housing, which ensures self-centering of the bearing in the housing during installation.

Designation

Popular designs of bearing units with UC bearing.

Bearing UC	Case P	Housing F	FC housing	Housing FL	T body
UCP 2XX, UCP 3XX (example UCP 205, UCP 305)	UCF 2XX, UCF 3XX (example UCF 205, UCF 305)	UCFC 2XX (example UCFC 205)	UCFL 2XX, UCFL 3XX (example UCFL 205, UCFL 305)	UCT 2XX, UCT 3XX (example UCT 205, UCT 305)

In the number, the last two digits indicate the shaft diameter (in general, you need to multiply by 5, for example 05 is 25 mm), the third from the end is the series (the light series is indicated by the number 2, the series for moderate operating conditions is indicated by the letter X, the heavy series is indicated by 3) .

Type UC

Name	d, mm	D, mm	Bi, mm	Weight, kg
UC 201	12	47	31,0	0,21
UC 202	15	47	31,0	0,190
UC 203	17	47	31,0	0,180
UC 204	20	47	31,0	0,160
UC 205	25	52	34,0	0,190
UC 206	30	62	38,1	0,310
UC 207	35	72	42,9	0,480
UC 208	40	80	49,2	0,620
UC 209	45	85	49,2	0,670
UC 210	50	90	51,6	0,780
UC 211	55	100	55,6	1,030
UC 212	60	110	65,1	1,450
UC 213	65	120	65,1	1,710
UC 214	70	125	74,6	2,060
UC 215	75	130	77,8	2,220
UC 216	80	140	82,6	2,820
UC 217	85	150	85,7	3,380
UC 218	90	160	96,0	4,340

Type UCP 200

For normal operating conditions. Fastening with locking screws

Name	Shaft diameter, mm	h, mm	a, mm	e, mm	b, mm	s1, mm	s2, mm	g, mm	W, mm	Bi, mm	n, mm	Bolt	Weight, kg
UCP201	12	30,2	127	96	38	13	19	15	62	31	12,7	M10	0,6
UCP202	15	30,2	127	96	38	13	19	15	62	31	12,7	M10	0,6
UCP203	17	30,2	127	96	38	13	19	15	62	31	12,7	M10	0,6
UCP204	20	33,3	127	95	38	13	19	15	65	31	12,7	M10	0,7
UCP205	25	36,5	140	105	38	13	16	16	70	34	14,3	M10	0,8
UCP206	30	42,9	165	121	48	17	21	18	83	38,1	15,9	M14	1,3
UCP207	35	47,6	167	127	48	17	21	19	94	42,9	17,5	M14	1,6
UCP208	40	49,2	184	137	54	17	25	19	100	49,2	19	M14	2
UCP209	45	54	190	146	54	17	22	20	108	49,2	19	M14	2,3
UCP210	50	57,2	206	159	60	20	25	22	114	51,6	19	M16	2,7
UCP211	55	63,5	219	171	60	20	25	22	126	55,6	22,2	M17	3,3
UCP212	60	69,8	241	184	70	20	25	25	138	65,1	25,4	M18	4,7
UCP213	65	76,2	265	203	70	25	29	27	150	65,1	25,4	M20	5,6
UCP214	70	79,4	266	210	72	25	31	27	156	74,6	30,2	M20	7,3
UCP215	75	82,6	275	217	74	25	31	28	163	77,8	33,3	M20	7,9
UCP216	80	88,9	292	232	78	25	31	30	175	82,6	33,3	M20	10
UCP217	85	95,2	310	247	83	25	31	32	187	85,7	34,1	M20	12,2
UCP218	90	101,6	327	262	88	22	33	34	200	96	39,7	M20	14,7

Type UCF

Name	a, mm	e, mm	i, mm	g, mm	l, mm	s, mm	Z, mm	Bi, mm	n, mm	Bolt	Weight, kg
UCF201	86	64	15	12	25,5	12	33,3	31,0	12,7	M10	0,640
UCF202	86	64	15	12	25,5	12	33,3	31,0	12,7	M10	0,620
UCF203	86	64	15	12	25,5	12	33,3	31,0	12,7	M10	0,610
UCF204	86	64	15	12	25,5	12	33,3	31,0	12,7	M10	0,590
UCF205	95	70	16	14	27,0	12	35,7	34,0	14,3	M10	0,820
UCF206	108	83	18	14	31,0	12	40,2	38,1	15,9	M10	1,100
UCF207	117	92	19	16	34,0	14	44,4	42,9	17,5	M12	1,500
UCF208	130	102	21	16	36,0	14	51,2	49,2	19,0	M14	2,000
UCF209	137	105	22	18	38,0	16	52,2	49,2	19,0	M14	2,400
UCF210	143	111	22	18	40,0	16	54,6	51,6	19,0	M14	2,500
UCF211	162	130	25	20	43,0	19	58,4	55,6	22,2	M16	3,400
UCF212	175	143	29	20	48,0	19	68,7	65,1	25,4	M16	4,600
UCF213	187	149	30	20	50,0	19	69,7	65,1	25,4	M16	5,500
UCF214	193	152	31	24	54,0	19	75,4	74,6	30,2	M16	6,100
UCF21S	200	159	34	24	56,0	19	78,5	77,8	33,3	M16	6,900
UCF216	208	165	34	24	58,0	23	83,3	82,6	33,3	M20	7,800
UCF217	220	175	36	26	63,0	23	87,6	85,7	34,1	M20	9,300
UCF218	235	187	40	26	68	23	96,3	96	39,7	M20	11,300

Type UCFL

Name	a, mm	e, mm	i, mm	g, mm	l, mm	s, mm	b, mm	z, mm	Bi, mm	n, mm	Bolt	Weight, kg
UCFL201	113	90	15	12	25,5	12	60	33,3	31,0	12,70	M10	0,500
UCFL202	113	90	15	12	25,5	12	60	33,3	31,0	12,70	M10	0,480
UCFL203	113	90	15	12	25,5	12	60	33,3	31,0	12,70	M10	0,470
UCFL204	113	90	15	12	25,5	12	60	33,3	31,0	12,70	M10	0,450
UCFL205	130	99	16	14	27,0	16	68	35,7	34,0	14,33	M14	0,630
UCFL206	148	117	18	14	31,0	16	80	40,2	38,1	15,90	M14	0,960
UCFL207	161	130	19	16	34,0	16	90	44,4	42,9	17,50	M14	1,200
UCFL208	175	144	21	16	36,0	16	100	51,2	49,2	19,00	M14	1,600
UCFL209	188	148	22	18	38,0	19	108	52,2	49,2	19,00	M16	1,900
UCFL210	197	157	22	18	40,0	19	115	54,6	51,6	19,00	M16	2,200
UCFL211	224	184	25	20	43,0	19	130	58,4	55,6	22,20	M16	3,200
UCFL212	250	202	29	20	48,0	23	140	68,7	65,1	25,40	M20	4,100
UCFL213	258	210	30	24	50,0	23	155	69,7	65,1	25,40	M20	5,100
UCFL214	265	216	31	24	54,0	23	160	75,4	74,6	30,20	M20	6,000
UCFL215	275	225	34	24	56,0	23	165	78,5	77,8	33,30	M20	6,500
UCFL216	290	233	34	24	58,0	25	180	83,3	82,6	33,30	M22	8,000
UCFL217	305	248	36	26	63,0	25	190	85,7	85,7	34,10	M22	9,500
UCFL218	320	265	40	26	68	25	205	96	96,0	39,7	M22	11,9

Type UCPA

Name	h, mm	a, mm	e, mm	b, mm	r, mm	g, mm	w, mm	Bi, mm	n, mm	Bolt	Weight, kg
UCPA201	30,2	76	52	40	12	11	62	31,0	12,7	M10x1.5	0,650
UCPA202	30,2	76	52	40	12	11	62	31,0	12,7	M10x1.5	0,630
UCPA203	30,2	76	52	40	12	11	62	31,0	12,7	M10x1.5	0,620
UCPA204	30,2	76	52	40	12	1,1	62	31,0	12,7	M10x1.5	0,600
UCPA205	36,5	84	56	45	15	12	72	34,0	14,3	M10x1.5	0,810
UCPA206	42,9	94	66	50	18	12	84	38,1	15,9	M14x2	1,200
UCPA207	47,6	110	80	55	20	13	95	42,9	17,5	M14x2	1,700
UCPA208	49,2	116	84	58	20	13	100	49,2	19,0	M14x2	1,900
UCPA209	54,2	120	90	60	22	13	108	49,2	19,0	M14x2	2,200
UCPA210	57,2	130	94	64	25	14	116	51,6	19,0	M16x2	2,600

UCT type

Name	o, mm	g, mm	P, mm	q, mm	S, mm	b, mm	k, mm	e, mm	a, mm	w, mm	i, mm	l, mm	h, mm	Bi,m	n, mm	Weight, kg
UCT201	16	10	51	32	19	51	12	76	89	94	32	21	61	31,0	12,7	0,790
UCT202	16	10	51	32	19	0,51	12	76	89	94	32	21	61	31,0	12,7	0,770
UCT203	16	10	51	32	19	51	12	76	89	94	32	21	61	31,0	12,7	0,760
UCT204	16	10	51	32	19	51	12	76	89	94	32	21	61	31,0	12,7	0,790
UCT205	16	10	51	32	19	51	12	76	89	97	32	24	62	34,0	14,3	0,820
UCT206	16	10	56	37	22	57	12	89	102	113	37	28	70	38,1	15,9	1,300
UCT207	16	13	64	37	22	64	12	89	102	129	37	30	78	42,9	17,5	1,600
UCT208	19	16	83	49	29	83	16	102	114	144	49	33	88	49,2	19,0	2,400
UCT209	19	16	83	49	29	83	16	102	117	144	49	35	87	49,2	19,0	2,400
UCT210	19	16	83	49	29	86	16	102	117	149	49	37	90	51,6	19,0	2,500
UCT211	25	19	102	64	35	95	22	130	146	171	64	38	106	55,6	22,2	4,000
UCT212	32	19	102	64	35	102	22	130	146	194	64	42	119	65,1	25,4	5,100
UCT213	32	21	111	70	41	121	26	151	167	224	70	44	137	65,1	25,4	7,000
UCT214	32	21	111	70	41	121	26	151	167	224	70	46	137	74,6	30,2	7,100
UCT215	32	21	111	70	41	121	26	151	167	232	70	48	140	77,8	33,3	7,500
UCT216	32	21	111	70	41	121	26	165	184	235	70	51	140	82,6	33,3	8,500
UCT217	38	29	124	73	48	157	30	173	198	260	73	54	162	85,7	34,1	11,200

Cylindrical roller bearings

These parts compare favorably with ball parts due to the increased load on the axle. The contact area of ​​the roller is much wider than that of a spherical bearing. Some modifications allow longitudinal displacement along the axis.

We will show tables that can be used to determine the size by bearing number:

Without flanges on the outer ring

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	Weight in kg	Scheme
N 1007	2107	35	62	14	0,18
N 1008	2108	40	68	15	0,22
N 1009	2109	45	75	16	0,29
N 1110	2110	50	80	16	0,31

With single breasted inner ring

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	Weight in kg	Scheme
NJ 1034	42134	170	260	42	8,2
NJ 1036	42136	180	280	46	10,1

With one built-in and one free flange on the inner ring

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	Weight in kg	Scheme
NUP 305	92305	25	62	17	0,24
NUP 306	92306	30	72	19	0,36
NUP 307	92307	35	80	21	0,48

Designation of imported bearings - is there a foreign GOST for marking components?

If with domestic products everything is clear and each manufacturing company is obliged to adhere to the established numbering requirements for years, then abroad each manufacturer himself comes up with a system convenient for him. Usually it is less detailed and detailed than in Russia, and also has the following drawback - without detailed instructions, and for a Russian person translated into his native language, nothing is clear. You can trust the seller, but he himself often does not know the smallest details that make up the code.

How to determine the bearing series - instructions

There are four main categories. Extra light (number 1), light (2 or 5), medium (3 or 6) and heavy – 4.

To determine which of them the model belongs to, you should find the core of the marking; it is located between two dashes. If there is no suffix or postfix, then the number may stand alone. There are two situations. If there is a slash, then the indicator we need is the first one to the left of it. If there is no slash, then it is third.

How to find out the hole diameter - instructions

These are the very first (right) numbers of the kernel.

If the entry contains the ending - 0X, then this X is a number from 1 to 9 in millimeters. If the entry is 05X, then X is a rounded number, but not more than 10 mm.

The signs 00, 01, 02 and 02 indicate a range from 10 to 20; the code can be converted into exact values ​​using the table above. If they are followed by 9 (i.e. 900 or 901), then again rounding has occurred.

If there is any two-digit value, it should be multiplied by 5. The rule with “nine” in third place remains appropriate here.

And if there is a slash in the marking, then either this is an exception, or the large diameter is more than 50 centimeters.

How to determine its external dimensions by the bearing number - instructions

This is the last kernel value. It stands on the edge, to the left. These are the dimensions, that is, the multiplied width and height. If the inner ring remains the same, then the outer one increases according to the following markings: 0, 8, 9, 1, 7, 2, 3, 4, 5. The ratio of the values ​​can be determined using the table.

How to find out the number

The easiest way is to use electronic catalogs containing all dozens of values. Numbering is easier to master if you first measure the main parameters - outer and inner radius, width, height.

Tapered roller bearings

They have the same advantages as cylindrical ones: high load, the ability to disassemble. In addition, they allow you to adjust the gap between the rolling surfaces after working. These include the following types.

Single row

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width T in mm	Weight in kg	Scheme
30204	7204	20	47	15,25	0,12
30205	7205	25	52	16,25	0,15
30206	7206	30	62	17,25	0,24

With a large cone angle

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width T in mm	Weight in kg	Scheme
—	27305	25	62	18,25	0,26
—	27306	30	72	20,75	0,39
—	27307	35	80	12,75	0,52

Double row

ISO marking	Analogue GOST	Inner diameter mm	Outer diameter mm	Width T in mm	Width B in mm	Weight in kg	Scheme
—	9716	340	520	180	135	118
—	9717	360	540	185	140	132
—	9718	380	560	189	141	169

Four-row

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width T in mm	Width B in mm	Weight in kg	Scheme
—	2077140	200	310	275	10	75,8
—	2077144	220	340	305	10	10,4
—	2077148	240	360	310	10	108,7

Rules for working with bearings

A bearing must be reliable, but sometimes the conditions in which it must rotate are not suitable for its normal functioning.
Also, conditions can also influence the fact that a bearing, even in good conditions, can suddenly fail. Therefore, there are special rules for the operation of this part, and they should be taken very seriously so that your part can work as long as possible. For example, you should not overload it and make sure that it only works for the required time period and no more. Another rule should be considered that it should be selected so that it fits perfectly in size, diameter and other technical characteristics.

For example, by size you can find a variety of bearings: from miniature to the most gigantic sizes. There is another division: high-speed, low-speed, maximum precision and others. All of these divisions depend on where and how you intend to use this important element of the rotational movement.

Spherical roller bearings

They combine the ability to withstand high loads and have a deviation in the axes of landing and rotation. They are also called self-centering.

Double-row with sides on the inner ring

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	Weight in kg	Scheme
22208	3508	40	80	23	0,58
22209	3509	45	85	23	0,6
22210	3510	50	90	23	0,65

With beadless inner ring

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	Weight in kg	Scheme
22208	53508	40	80	23	0,58
22209	53509	45	85	23	0,6
22210	53510	50	90	23	0,65

Spherical double-row with sides on the inner ring with a landing cone 1:12

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	Weight in kg	Scheme
22208 CCK	153508	40	80	23	0,58
22209 CCK	153509	45	85	23	0,6
22210 CCK	153510	50	90	23	0,65
22211 CCK	153511	55	100	25	0,88
22212 CCK	153512	60	110	28	1,2

Spherical double-row with sides on the inner ring with a cone 1:30

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	Weight in kg	Scheme
24024 K30	4113124	120	180	60	5,4
24026 K30	4113126	130	200	69	7,95
24028 K30	4113128	140	210	69	8,45
24030 K30	4113130	150	225	75	10,5

Spherical double-row with a beadless ring with a hole with a taper of 1:30

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	Weight in kg	Scheme
24024 CCK30	4153124	120	180	60	5,4
24026 CCK30	4153126	130	200	69	7,95
24028 CCK30	4153128	140	210	69	8,45
24030 CCK30	4153130	150	225	75	10,5

Flatbed with inner ring with seat cone 1:12

ISO marking	Analogue GOST	Inner diameter d mm	Outer diameter D mm	Width in mm	Weight in kg	Scheme
22208 CCK	153508	40	80	23	0,58
22209 CCK	153509	45	85	23	0,6
22210 CCK	153510	50	90	23	0,65
22211 CCK	153511	55	100	25	0,88

Thrust spherical single row

ISO marking	Analogue GOST	d mm	d 1 mm	D mm	D 1 mm	T mm	S mm	Weight in kg	Scheme
29428	9039428	140	257	280	198	85	86	24,1
29436	9039436	180	342	360	255	109	110	52,6
29452	9039452	260	460	480	346	132	154	107,8

Double row ball bearings, sealed

Their design is similar to that of single-row sealed bearings installed in pairs in an “O” pattern.

They are non-separable and their internal geometry is improved, which is the main feature of the design - the presence of a spherical surface on the outer ring. The bearings are radial and have two rows of balls, which has a better effect on their ability to absorb radial load.

The bearings are capable of supporting a small axial load, but less than single-row radial bearings. This allows us to eliminate the main disadvantage of a single-row machine, such as the inability to work when the shafts are skewed or bent. This type is widely used in agricultural machinery and other industries where long and thin shafts are used for light ball bearing loads. This is achieved by reducing the load on the ball. Double row deep groove ball bearing is used for heavy loads with high axial rotation frequency.

Cages for double row angular contact ball bearings are manufactured in two versions, depending on the internal design of the bearing, from stamped steel, polyamide or brass.

Contact seals (2RS) on 2 sides reliably protect the bearings of this series from large and fine dust, as well as moisture. Sealed bearings are already lubricated for life.

As a rule, the cage in bearings 22..-2RS is made of polyamide (plastic) or, less commonly, steel.

Size table for deep groove ball bearings series 22..-2RS
Designation	d, mm	D, mm	B, mm
2200-2RS	10	30	14
2201-2RS	12	32	14
2202-2RS	15	35	14
2203-2RS	17	40	16
2204-2RS	20	47	18
2205-2RS	25	52	18
2206-2RS	30	62	20
2207-2RS	35	72	23
2208-2RS	40	80	23
2209-2RS	45	85	23
2210-2RS	50	90	23
2211-2RS	55	100	25
2212-2RS	60	110	28
2213-2RS	65	120	31
2214-2RS	70	125	31

Designation		Dimensions, mm				Weight, kg
according to GOST	international	d	D	B	r
Width series 0, diameter series 1
246100	–	10	26	16	0,5	0,04
246101	–	12	28	16	0,5	0,05
246102	–	15	32	18	0,5	0,06
246103	–	17	35	20	0,5	0,08
246104	–	20	42	24	1	0,14
246105	–	25	47	24	1	0,16
246106	–	30	55	26	1,5	0,24
246107	–	35	62	28	1,5	0,32
246108	–	40	68	30	1,5	0,39
246109	–	45	75	32	1,5	0,5
246110	–	50	80	32	1,5	0,54
246111	–	55	90	36	2	0,79
246112	–	60	95	36	2	0,84
246113	–	65	100	36	2	0,9
246114	–	70	110	40	2	1,24
246115	–	75	115	40	2	1,31
246116	–	80	125	44	2	1,75
246117	–	85	130	44	2	1,83
246118	–	90	140	48	2,5	2,38
246120	–	100	150	48	2,5	2,58
246122	–	110	170	56	3	4,04
246124	–	120	180	56	3	4,34
246126	–	130	200	66	3	6,56
246128	–	140	210	66	3	6,96
246130	–	150	225	70	3,5	8,44
246132	–	160	240	76	3,5	10,38
246134	–	170	260	84	3,5	13,92
246136	–	180	280	92	3,5	18,18
246138	–	190	290	92	3,5	19,62
246140	–	200	310	102	3,5	24,6
Width series 0, diameter series 2
246201	–	12	32	20	1	0,08
246202	–	15	35	22	1	0,1
246203	–	17	40	24	1	0,14
246204	–	20	47	28	1,5	0,22
246205	–	25	52	30	1,5	0,27
246206	–	30	62	32	1,5	0,4
246207	–	35	72	34	2	0,56
246208	–	40	80	36	2	0,74
246209	–	45	85	38	2	0,85
246210	–	50	90	40	2	0,96
246211	–	55	100	42	2,5	1,26
246212	–	60	110	44	2,5	1,6
246213	–	65	120	46	2,5	2
246214	–	70	125	48	2,5	2,2
246215	–	75	130	50	2,5	2,95
246216	–	80	140	52	3	3,68
246217	–	85	150	56	3	4,42
246218	–	90	160	60	3	4,52
246220	–	100	180	68	3,5	6,64
246222	–	110	200	76	3,5	9,24
246224	–	120	215	80	3,5	10,96
246226	–	130	230	80	4	12,4
246228	–	140	250	84	4	15,5
246230	–	150	270	90	4	19,5
246232	–	160	290	96	4	30,8
246234	–	170	310	104	5	36,6
246236	–	180	320	104	5	40,8
246238	–	190	340	110	5	48,8
246240	–	200	360	116	5	58
246244	–	220	400	130	5	80
Width series 0, diameter series 3
246303	–	17	47	28	1,5	0,244
246304	–	20	52	30	2	0,318
246305	–	25	62	34	2	0,508
246306	–	30	72	38	2	0,766
246307	–	35	80	42	2,5	1,014
246308	–	40	90	46	2,5	1,39
246309	–	45	100	50	2,5	1,854
246310	–	50	110	54	3	2,4
246311	–	55	120	58	3	3,1
246312	–	60	130	62	3,5	3,88
246313	–	65	140	66	3,5	4,76
246314	–	70	150	70	3,5	5,78
246315	–	75	160	74	3,5	6,94
246316	–	80	170	78	3,5	8,24
246317	–	85	180	82	4	9,68
246318	–	90	190	86	4	11,3
246319	–	95	200	90	4	12,5
246320	–	100	215	94	4	16,08
246322	–	110	240	100	4	21,6
246324	–	120	260	110	4	27,4
246326	–	130	280	116	5	33,6
246328	–	140	300	124	5	40,8
246330	–	150	320	130	5	48,8
246336	–	180	380	150	5	–
246340	–	200	420

Attention Bearing Buyers Dear customers, send your questions and requests for the purchase of bearings and components by email or call now: [email protected] Delivery of bearings throughout the Russian Federation and abroad. Bearing catalog on the website

Attention Bearing Buyers

Dear customers, send your questions and requests for the purchase of bearings and components by mail or call now: tel: +7 (495) 646 00 12 [email protected] Delivery of bearings in the Russian Federation and abroad. Bearing catalog on the website

themechanic.ru

Plain bearings

This unit does not have rolling elements. Its characteristics are as follows: the inner and outer cages are made along the same radius. Therefore, the axis, relative to the mandrel, has several degrees of freedom. Most often they are used in articulated joints.

Plain bearings with a hole and grooves for lubrication in the inner ring with a single-break ring

Alternative ISO markings	Analogue GOST	d mm	D mm	B mm	C mm	Rotation angle deg	d1 mm	d2 mm	Weight in kg	Scheme
GE 10 EC	ESHSP 10	10	19	9	6	12	13	16	0,01
GE 12 EC	ESHSP 12	12	22	10	7	10	18	10	0,02
GE 15 EC	ESHSP 15	15	26	12	9	8	18	22	0,04
GE 17 EC	ESHSP 17	17	30	14	10	10	20	25	0,05

With double-break outer ring

Alternative ISO markings	Analogue GOST	d mm	D mm	B mm	C mm	Rotation angle deg	d1 mm	d2 mm	Weight in kg	Scheme
GE 20 EXC	ShSL 20	20	35	16	12	9	24	29	0,07
GEH 20 EXC	2ShSL 20	20	47	26	15	22	23	35	0,19
GE 25 EXC	ShSL 25	25	42	20	16	7	29	35	0,12
GEH 25 EXC	2ShSL 25	25	52	28	15	22	28	40	0,26

With holes and grooves in the inner ring

Alternative ISO markings	Analogue GOST	d mm	D mm	B mm	C mm	Rotation angle deg	d1 mm	d2 mm	Weight in kg	Scheme
GE 10 C	ESH 10	10	19	9	6	12	13	16	0,01
GE 12 C	ShS 12	12	22	10	7	10	18	10	0,02
GE 15 C	ESH 15	15	26	12	9	8	18	22	0,04
GE 17 C	ESH 17	17	30	14	10	10	20	25	0,05

With grooves on inner and outer rings

Alternative ISO markings	Analogue GOST	d mm	D mm	B mm	C mm	Rotation angle deg	d1 mm	d2 mm	Weight in kg	Scheme
GE 10 S	ESH 10K	10	19	9	6	12	13	16	0,01
GE 12 S	ShS 12K	12	22	10	7	10	18	10	0,02
GE 15 S	ESH 15K	15	26	12	9	8	18	22	0,04
GE 17 S	ESH 17K	17	30	14	10	10	20	25	0,05

Without holes and grooves with single break ring

Alternative ISO markings	Analogue GOST	d mm	D mm	B mm	C mm	Rotation angle deg	d1 mm	d2 mm	Weight in kg	Scheme
GE 10 E	ESR 10	10	19	9	6	12	13	16	0,01
GE 12 E	ShP 12	12	22	10	7	10	18	10	0,02
GE 15 E	ESR 15	15	26	12	9	8	18	22	0,04
GE 17 E	ESR 17	17	30	14	10	10	20	25	0,05

With holes and grooves on outer and inner rings with single break ring

Alternative ISO markings	Analogue GOST	d mm	D mm	B mm	C mm	Rotation angle deg	d1 mm	d2 mm	Weight in kg	Scheme
GE 10ES	ESHSP 10	10	19	9	6	12	13	16	0,01
GE 12 ES	ShSP 12	12	22	10	7	10	18	10	0,02
GE 15ES	ESHP 15	15	26	12	9	8	18	22	0,04
GE 17 ES	ESHSP 17	17	30	14	10	10	20	25	0,05

With double-break outer ring

Alternative ISO markings	Analogue GOST	d mm	D mm	B mm	C mm	Rotation angle deg	d1 mm	d2 mm	Weight in kg	Scheme
GE 10 EXS	ESHSL 10	10	19	9	6	12	13	16	0,01
GE 12 EXS	ShSL 12	12	22	10	7	10	18	10	0,02
GE 15 EXS	ESHSL 15	15	26	12	9	8	18	22	0,04
GE 17 EXS	ESHL 17	17	30	14	10	10	20	25	0,05

Below we provide tables of closed sizes of rolling and sliding ball bearings.

Types of bearing seals

Bearing seals are divided into external and built-in. The external seal is a separate part and is supplied separately. They are usually used in conjunction with large bearings that operate under harsh conditions.

Integrated seals are already part of the sealed bearing and are supplied with the bearing. There are two types: shields and rubber seals.

Contact sealing is based on the action of a thin sealing lip, which fits tightly to the contacting surface and protects against the ingress of impurities, moisture or lubricant leakage. It is installed in a groove on the outer ring and touches the inner ring with one or more edges, thereby ensuring a seal. A tight fit is ensured either by the material itself or by a spring.

Non-contact seals are installed in places where, due to lack of space or cost, non-contact seals cannot be installed. The pressed steel shield is inserted into the outer ring and creates a small gap with the inner ring without touching it, so the frictional torque is not increased. Also used where there are high heating conditions or high engine speeds.

Seals are made from stamped steel rings of simple design.

Contact seals are made of metal rubber and have a labyrinth between the sheet element and the rubber lip. Increased protection against contamination. But it is used only at medium engine speeds. Rubber jaws are standardly made of nitrile butadiene rubber with sheet steel reinforcement, the edges of which touch the recesses on the side plane of the inner rings. All sealed bearings do not require re-lubrication; they are filled with grease once during manufacture. When filled with high-quality lubricant, the bearings do not require repeated maintenance.

Needle Bearing Size Chart

International designation	Russian designation (GOST)	Dimensions (mm)				Load capacity (kN)		Weight (kg)
		d	Fw	D	B	Dynamic	Static
NK 32/20	524706	32	32	42	20	23,3	40,5	0,068
RNA 49/28	42549/28	32	32	45	17	25,1	36,5	0,073
RNA 69/28	62549/28	32	32	45	30	39,6	65,5	0,14

Dimensions

You can find out how bearing sizes depend on their series using the table of bearing sizes. It allows you to link a series with external and internal diameters and widths.

Rolling bearing dimensions.
Table 1. Bearing series by size

Width	External diameter	Inner diameter	Series
13 mm	55 mm	30 mm	106
10 mm	32 mm	12 mm	201
11 mm	35 mm	15 mm	202
12 mm	42 mm	17 mm	203
14 mm	47 mm	20 mm	204
15 mm	52 mm	25 mm	205
16 mm	62 mm	30 mm	206
12 mm	37 mm	12 mm	301
13 mm	42 mm	15 mm	302
14 mm	47 mm	17 mm	303
15 mm	52 mm	20 mm	304
14 mm	35 mm	15 mm	502
16 mm	40 mm	17 mm	503
18 mm	52 mm	25 mm	505
19 mm	47 mm	17 mm	603
14 mm	40 mm	17 mm	703
15.5 mm	47 mm	17 mm	803

This is a table of rolling bearings, one of many tables describing this type of structural element.

Plain bearings

International designation	Russian designation (GOST)	Dimensions (mm)				Load capacity (kN)		Weight (kg)
		d	Fw	D	B	Dynamic	Static
RNA 4010V	4024110	62	62	80	30	59,6	153	0,44
RNA 4911	4254911	63	63	80	25	57,2	106	0,26
RNA 6911	6254911	63	63	80	45	89,7	190	0,47

Thrust-radial roller

International designation	GOST	Dimensions (mm)					Weight (g)
		d	D	de	De	Bx
AXK 2035	999904	20	35	22	34	2	5
AXK 2542	999905	25	42	29	41	2	7
AXK 3047	219806	30	47	34	46	2	8

Table fields

They display the names of the main parameters and their geometric dimensions.

ISO marking

It is standard for most countries of the world, which indicates the number and design features.

GOST

It is a Russian analogue and performs the same functions.

Node internal diameter

It is measured in millimeters (mm) and is designated by the English letter d.

Outside diameter

Denoted as D.

Width

Measured in mm and identified by a capital B.

Weight

The measure is in kilograms (kg).

Scheme

Explains the basic structure.

How to determine ball bearing sizes using tables

Many machines that exist today have bearings that allow them to rotate. Therefore, no rotating movement can be carried out without them. But even such a seemingly irreplaceable, but at the same time inconspicuous part of the mechanism can be different in size and in its technical characteristics, especially taking into account the diameter, the dimensions of which are usually presented in the table. But whatever this part is, no matter how it looks and whatever its technical characteristics, it should perform only one task - to provide the part with rotation or the necessary rotation.

Product sizing

In everyday life or production, these parameters are measured with certain tools: calipers, micrometers, bore gauges.

External Diameter Measurement

Manufacturing parameters are maintained quite accurately. Therefore, you should not trust the readings of a caliper. If it shows a non-standard value, then the real data will be the closest indicators indicated in the register.

How to measure the inner diameter of a product

Construction stores sell a special device called a bore gauge. But it is better to take the closest number from the classic report card as the true value.

Bearing number by size

If you have a need to purchase a bearing to replace a product that has failed, the easiest way is to purchase the required model and brand using the part number.

Where to begin

Before you begin selecting it, you need to determine the country of origin. This is explained by the fact that there is currently no unified international approach to the labeling of bearing products.

Products manufactured in Russia are marked in accordance with the national standard 3189-89 (the GOST version in force at the time of selection should be followed).

A number of the world's leading manufacturers from Europe, the USA and Japan are guided by the provisions of ISO standards (these documents are advisory in nature). In this group you can specify three documents:

• 104:2002 - sets out recommendations for marking thrust roller bearings;
• 15:1998 – applies to radial rolling bearings, with the exception of tapered roller bearings;
• 355:1977 - for products excluded from the previous standard.

Many manufacturers (for example, the Swedish brand SKF, the German FAG, the Japanese KOYO or NSK) use their own labeling options.

What sizes do you need to know?

There are three main sizes, knowledge of which allows you to begin determining the bearing number. This can be done via the Internet. Almost all websites of manufacturers and large trading companies selling bearing products have special calculators.

To start your search you need to know:

• D – outer (outer) diameter of the bearing;
• d – internal diameter;
• B – product width.

All dimensions are taken in millimeters.

How is the value of d determined

Bearing mounting holes can have different shapes. In this regard, it is necessary to know which parameter measurement will allow us to obtain the desired value of d:

• For a cylindrical hole, its actual internal diameter is measured;
• If it is shaped like a cone, then you should be interested in the smaller of the two diameters;
• For square or hexagonal holes, the diameter of the inscribed circle is calculated. This is the desired value of d;
• There are models with different bushings (the latter can be fastening or tightening). For them, the value d is the diameter of the hole in the sleeve itself.

In cases where it is necessary to select a thrust bearing, it should be remembered that its design has a pair of races, each of which has its own internal diameter. The difference (for Russian bearings) ranges from 2/10 to 8/10 of a millimeter. For foreigners, this spread is (1-5) mm.

This technological solution allows the bearing to operate normally. The larger (outer) ring (d1) moves freely. The inner race (d2) is tightly fixed to the shaft. It is by the latter that it is necessary to determine the value of d.

Such products have in additional designations the letter “H”, placed after the number indicating the difference (d1 – d2).

Often imported bearings are marked in inches (“”). When selecting them using domestic calculators, you should definitely leave an allowance (included in the search parameters) for the error in converting inches to millimeters.

Example. When searching for a bearing with dimensions 33.338x73.025x29.37, an allowance of 0.5 mm is taken.

Finally, in cases where your bearing does not have an inner race, the value of d is taken to be equal to the outer diameter of the shaft.

Definition D

For products without an outer ring, the value of D is taken equal to the internal diameter of the seat.

If the outer ring is made in the shape of a sphere or something else that has complex optimization (referred to by the general term “bombed”), you may get not one, but two desired values ​​of D.

For such bearings, the designation will look like d*D1/D2*B, where D1 is the outer diameter of the bearing, and D2 is the thrust collar.

Example. Bearing 67207. Designation – 35x72/77x18.25.

We measure the width

If the clips (rings) are located parallel, then the width is the distance between their ends.