Spherical roller bearing

Spherical roller bearings have two rows of rollers that are mainly used for withstanding radial loads and also axial loads in either direction. Self-aligning roller bearings have high radial load capacity, especially suitable for heavy load or vibration load, but can not withstand the axial load. Spherical roller thrust bearings have good self-aligning properties and can compensate for the coaxiality error.

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Main structural form of Spherical roller bearing:

I. Cylindrical hole spherical roller bearing

Cylindrical hole spherical roller bearing has four types: 20000 C, 20000 Cc, 20000 CACM, 20000TN1.

20000C type bearing adopts symmetric spherical roller and steel plate stamping cage. The inner ring has no fixed ribs, and the roller is lengthened. The bearing capacity is large, and the retaining ring is guided by the inner ring during the movement, so the self-aligning performance is good.

20000CC bearing is an improved version of the 20000 c-type bearing. The friction between the bearing roller and the raceway is reduced and the load capacity is improved.

20000 CACM type bearing adopts symmetric spherical roller and solid cage, with fixed small rib and movable intermediate retaining ring for inner ring. The main parameters

and rated load of this type of bearing are the same as 20000CC bearing. 20000TN1 type bearing uses symmetrical spherical roller and nylon shaped cage. The inner ring has

no fixed ribs and movable intermediate retaining ring. The cage is guided by rollers.

The 20,000 Cc, 20,000 CACM and 20000TN1 bearings are the structural forms that have been developed and optimized in recent years, and should be selected as the priority.

II. Tapered bore spherical roller bearing

For bearings with inner hole taper of 1:12, the rear code is indicated by K; For bearings with inner hole taper 1:30, the rear code is indicated by K30. When such bearings are matched with the conical shaft diameter, the radial clearance of the bearing can be adjusted by the inner ring moving along the axial direction.

III. Spherical roller bearing mounted on a adapter sleeve

The tapered roller spherical roller bearings with the rear code K and K30 are mounted on the matching adapter sleeves, and then they will be the bearings with rear code K+H

and K30+H . This type of bearing can be mounted on an optical axis without shoulder and is suitable for applications where the bearing needs to be removed and removed

frequently. For bearings with lubricating oil groove and three lubricating oil holes on the outer ring of the above bearings, the rear code is W33.

Dimension(mm)				Basic Load Rating(KN)		Bearing Designation		Limiting Speed(rpm)		Mounting Dimension(mm)			Mass(kg)
d	D	B	rsmin	Cr	Cor	Cylindrical Bore	Tapered Bore	Grease	Oil	da(min)	Da(max)	ra(max)	Mass(kg)
20	52	15	1.1	31.7	32.1	21304CA	21304CAK	6000	7500	27	45	1	0.175
20	52	15	1.1	35.8	35.2	21304CTN1	21304KCTN1	6000	7500	27	45	1	0.161
25	62	17	1.1	42.7	45.5	21305CA	21305CAK	5300	6700	32	55	1	0.277
25	62	17	1.1	45.5	45.8	21305CTN1	21305KCTN1	5300	6700	32	55	1	0.258
30	72	19	1.1	57.5	63.9	21306CA	21306CAK	4500	6000	37	65	1	0.412
30	72	19	1.1	63.8	65.4	21306CTN1	21306KCTN1	4500	6000	37	65	1	0.391
35	80	21	1.5	65.4	75.4	21307CA	21307CAK	4000	5300	44	71	1.5	0.542
35	80	21	1.5	74.4	77.7	21307CTN1	21307KCTN1	4000	5300	44	71	1.5	0.507
40	90	23	1.5	88.8	99	21308CA	21308CAK	3600	4500	49	81	1.5	0.75
40	90	23	1.5	88.8	99	21308CC	21308CCK	3600	4500	49	81	1.5	0.743
45	90	23	1.5	93.9	102	21308CTN1	21308KCTN1	3600	4500	49	81	1.5	0.717
45	100	25	1.5	105.7	118.4	21309CA	21309CAK	3200	4000	54	91	1.5	1.02
45	100	25	1.5	105.7	118.4	21309CC	21309CCK	3200	4000	54	91	1.5	1
45	100	25	1.5	111.2	123.6	21309CTN1	21309KCTN1	3200	4000	54	91	1.5	0.949
50	110	27	2	123.6	144.2	21310CA	21310CAK	2800	3800	60	100	2	1.3
50	110	27	2	128.7	144.2	21310CC	21310CCK	2800	3800	60	100	2	1.3
50	110	27	2	128.7	144.2	21310CTN1	21310KCTN1	2800	3800	60	100	2	1.22
55	120	29	2	146.3	175.1	21311CA	21311CAK	2600	3400	65	110	2	1.65
55	120	29	2	146.3	175.1	21311CC	21311CCK	2600	3400	65	110	2	1.65
55	120	29	2	149.3	170	21311CTN1	21311KCTN1	2600	3400	65	110	2	1.57
60	130	31	2.1	166.9	200.9	21312CA	21312CAK	2400	3200	72	118	2.1	2.08
60	130	31	2.1	166.9	200.9	21312CC	21312CCK	2400	3200	72	118	2.1	2.08
60	130	31	2.1	175.1	200.9	21312CTN1	21312KCTN1	2400	3200	72	118	2.1	1.96
65	140	33	2.1	187.5	234.8	21313CA	21313CAK	2200	3000	77	128	2.1	2.57
65	140	33	2.1	187.5	234.8	21313CC	21313CCK	2200	3000	77	128	2.1	2.57
65	140	33	2.1	198	235	21313CTN1	21313KCTN1	2200	3000	77	128	2.1	2.45
70	150	35	2.1	218.4	276	21314CA	21314CAK	2000	2800	82	138	2.1	3.11
70	150	35	2.1	218.4	276	21314CC	21314CCK	2000	2800	82	138	2.1	3.11
70	150	35	2.1	220	265	21314CTN1	21314KCTN1	2000	2800	82	138	2.1	2.97
75	160	37	2.1	245.1	311.1	21315CA	21315CAK	1900	2600	87	148	2.1	3.76
75	160	37	2.1	245.1	311.1	21315CC	21315CCK	1900	2600	87	148	2.1	3.76
75	160	37	2.1	245.1	311.1	21315CTN1	21315KCTN1	1900	2600	87	148	2.1	3.63
80	170	39	2.1	267.8	358.6	21316CA	21316CAK	1800	2400	92	158	2.1	4.47
80	170	39	2.1	267.8	358.6	21316CC	21316CCK	1800	2400	92	158	2.1	4.47
80	170	39	2.1	280	350	21316CTN1	21316KCTN1	1800	2400	92	158	2.1	4.33
85	180	41	3	306.9	396.6	21317CA	21317CAK	1700	2200	99	166	2.5	5.23
85	180	41	3	306.9	396.6	21317CC	21317CCK	1700	2200	99	166	2.5	5.23
85	180	41	3	310	390	21317CTN1	21317KCTN1	1700	2200	99	166	2.5	5.07
90	190	43	3	329.6	432.6	21318CA	21318CAK	1600	2200	104	176	2.5	6.17
90	190	43	3	329.6	432.6	21318CC	21318CCK	1600	2200	104	176	2.5	6.17
90	190	43	3	330	420	21318CTN1	21318KCTN1	1600	2200	104	176	2.5	5.88
95	200	45	3	365.7	499.6	21319CA	21319CAK	1700	2200	109	186	2.5	7.15
95	200	45	3	365.7	499.6	21319CC	21319CCK	1700	2200	109	186	2.5	7.15
95	200	45	3	365	499	21319CTN1	21319KCTN1	1700	2200	109	186	2.5	6.9
100	215	47	3	396.6	545.9	21320CA	21320CAK	1600	2000	114	201	2.5	8.81
100	215	47	3	396.6	545.9	21320CC	21320CCK	1600	2000	114	201	2.5	8.81
100	215	47	3	425	575	21320CTN1	21320KCTN1	1600	2000	114	201	2.5	8.63
105	225	49	3	420	575	21321CA	21321CAK	1500	1900	119	211	2.5	10
105	225	49	3	420	575	21321CC	21321CCK	1500	1900	119	211	2.5	10
110	240	50	3	460	635	21322CA	21322CAK	1400	1800	124	226	2.5	11.8
110	240	50	3	474	654	21322CC	21322CCK	1400	1800	124	226	2.5	11.8
25	52	18	1	40	42	22205CA	22205CAK	8000	10000	30	46	1	0.177
25	52	18	1	40	42	22205CC	22205CCK	8000	10000	30	46	1	0.177
25	52	18	1	42.2	45	22205CTN1	22205KCTN1	8000	10000	30	46	1	0.178
30	62	20	1	53.4	58.5	22206CA	22206CAK	6300	8000	36	56	1	0.3
30	62	20	1	53.4	58.5	22206CC	22206CCK	6700	8500	36	56	1	0.283
30	62	20	1	58.5	61.3	22206CTN1	22206KCTN1	6700	8500	36	56	1	0.271
30	62	20	1	34.5	39.3	22206MB	22206MBK	5300	6700	36	56	1	0.29
35	72	23	1.1	68.5	78.8	22207CA	22207CAK	5300	6700	42	65	1	0.45
35	72	23	1.1	70.5	81.4	22207CC	22207CCK	5600	7000	42	65	1	0.437
35	72	23	1.1	78.5	87	22207CTN1	22207KCTN1	5600	7000	42	65	1	0.428
35	72	23	1.1	46.6	61.3	22207MB	22207MBK	4800	6000	42	65	1	0.43
40	80	23	1.1	80.9	93.5	22208CA	22208CAK	5000	6000	47	73	1	0.54
40	80	23	1.1	80.9	93.5	22208CC	22208CCK	5000	6300	47	73	1	0.524
40	80	23	1.1	95.3	103	22208CTN1	22208KCTN1	5000	6300	47	73	1	0.524
40	80	23	1.1	51.3	70.6	22208MB	22208MBK	4500	5600	47	73	1	0.55
45	85	23	1.1	84.5	100.4	22209CA	22209CAK	4500	5600	52	78	1	0.58
45	85	23	1.1	82.9	98	22209CC	22209CCK	4500	6000	52	78	1	0.571
45	85	23	1.1	97.1	105.1	22209CTN1	22209KCTN1	4500	6000	52	78	1	0.555
45	85	23	1.1	53.8	75.4	22209MB	22209MBK	4000	5000	52	78	1	0.59
50	90	23	1.1	87	108.1	22210CA	22210CAK	4000	5000	57	83	1	0.62
50	90	23	1.1	86.3	105.1	22210CC	22210CCK	4300	5300	57	83	1	0.614
50	90	23	1.1	99.4	113.3	22210CTN1	22210KCTN1	4300	5300	57	83	1	0.596
50	90	23	1.1	53.8	75.4	22210MB	22210MBK	3800	4800	57	83	1	0.87
55	100	25	1.5	105.1	128.8	22211CA	22211CAK	3600	4500	64	91	1.5	0.84
55	100	25	1.5	105.1	128.8	22211CC	22211CCK	3800	5000	64	91	1.5	0.847
55	100	25	1.5	121.5	144.2	22211CTN1	22211KCTN1	3800	5000	64	91	1.5	0.823
55	100	25	1.5	61.8	89.8	22211MB	22211MBK	3400	4300	64	91	1.5	0.86
60	110	28	1.5	125.7	159.7	22212CA	22212CAK	3200	4000	69	101	1.5	1.2
60	110	28	1.5	125.7	159.7	22212CC	22212CCK	3600	4500	69	101	1.5	1.15
60	110	28	1.5	154.5	190.5	22212CTN1	22212KCTN1	3600	4500	69	101	1.5	1.14
60	110	28	1.5	84.3	125.7	22212MB	22212MBK	3200	4000	69	101	1.5	1.22
65	120	31	1.5	154.5	200.8	22213CA	22213CAK	2800	3600	74	111	1.5	1.6
65	120	31	1.5	154.5	200.8	22213CC	22213CCK	3200	4000	74	111	1.5	1.54
65	120	31	1.5	172	212	22213CTN1	22213KCTN1	3200	4000	74	111	1.5	1.53
65	120	31	1.5	91.2	131.8	22213MB	22213MBK	2800	3600	74	111	1.5	1.63
70	125	31	1.5	162.7	211.2	22214CA	22214CAK	2600	3400	79	116	1.5	1.7
70	125	31	1.5	154.5	200.8	22214CC	22214CCK	3000	3800	79	116	1.5	1.6
70	125	31	1.5	180	225	22214CTN1	22214KCTN1	3000	3800	79	116	1.5	1.6
70	125	31	1.5	97.9	146.3	22214MB	22214MBK	2600	3400	79	116	1.5	1.66
75	130	31	1.5	166.9	221.5	22215CA	22215CAK	2400	3200	84	121	1.5	1.8
75	130	31	1.5	166.9	221.5	22215CC	22215CCK	3000	3800	84	121	1.5	1.69
75	130	31	1.5	180	232	22215CTN1	22215KCTN1	3000	3800	84	121	1.5	1.67
75	130	31	1.5	97.85	146.3	22215MB	22215MBK	2400	3200	84	121	1.5	1.75
80	140	33	2	180.3	245.1	22216CA	22216CAK	2200	3000	90	130	2	2.2
80	140	33	2	180.3	242.1	22216CC	22216CCK	2800	3400	90	130	2	2.13
80	140	33	2	212	275	22216CTN1	22216KCTN1	2800	3400	90	130	2	2.09
80	140	33	2	118.5	185.4	22216MB	22216MBK	2200	3000	90	130	2	2.2
85	150	36	2	216.3	286.3	22217CA	22217CAK	2000	2800	95	140	2	2.7
85	150	36	2	218.4	290.5	22217CC	22217CCK	2600	3200	95	140	2	2.67
85	150	36	2	262	340	22217CTN1	22217KCTN1	2600	3200	95	140	2	2.64
85	150	36	2	149.4	234.8	22217MB	22217MBK	2000	2800	95	140	2	2.8
90	160	40	2	247.2	331.7	22218CA	22218CAK	1900	2600	100	150	2	3.28
90	160	40	2	257.5	348.1	22218CC	22218CCK	2400	3000	100	150	2	3.38
90	160	40	2	280	378	22218CTN1	22218KCTN1	2400	3000	100	150	2	3.35
90	160	40	2	173	280.2	22218MB	22218MBK	1900	2600	100	150	2	4
95	170	43	2.1	286.3	391.4	22219CA	22219CAK	1900	2600	107	158	2.1	4.1
95	170	43	2.1	290.5	401.7	22219CC	22219CCK	2200	2800	107	158	2.1	4.2
95	170	43	2.1	310	420	22219CTN1	22219KCTN1	2200	2800	107	158	2.1	4.1
95	170	43	2.1	218.4	331.7	22219MB	22219MBK	1800	2400	107	158	2.1	4.2
95	180	46	2.1	325	448	22220-95	22220-95K	2200	2600	112	168	2.1	5.21
100	180	46	2.1	319.3	437.8	22220CA	22220CAK	1800	2400	112	168	2.1	5
100	180	46	2.1	324.5	448.1	22220CC	22220CCK	2200	2600	112	168	2.1	5.01
100	180	46	2.1	368	492	22220CTN1	22220KCTN1	2200	2600	112	168	2.1	4.97
100	180	46	2.1	228.7	368.7	22220MB	22220MBK	1700	2200	112	168	2.1	5
110	200	53	2.1	417	592	22222CA	22222CAK	1700	2200	122	188	2.1	7.2
110	200	53	2.1	422	606	22222CC	22222CCK	1900	2400	122	188	2.1	7.32
110	200	53	2.1	297	479	22222MB	22222MBK	1500	1900	122	188	2.1	7.4
120	215	58	2.1	484	698	22224CA	22224CAK	1600	2000	132	203	2.1	9
120	215	58	2.1	494	711	22224CC	22224CCK	1700	2200	132	203	2.1	9.1
120	215	58	2.1	352	582	22224MB	22224MBK	1300	1700	132	203	2.1	9.2
130	230	64	3	567	834	22226CA	22226CAK	1400	1800	144	216	2.5	11.2
130	230	64	3	579	857	22226CC	22226CCK	1600	2000	144	216	2.5	11.2
130	230	64	3	420	729	22226MB	22226MBK	1200	1600	144	216	2.5	11.2
140	250	68	3	647	958	22228CA	22228CAK	1300	1700	154	236	2.5	14.5
140	250	68	3	659	984	22228CC	22228CCK	1400	1700	154	236	2.5	14.2
140	250	68	3	492	829	22228MB	22228MBK	1000	1400	154	236	2.5	14.5
150	270	73	3	760	1130	22230CA	22230CAK	1200	1600	164	256	2.5	18.6
150	270	73	3	772	1164	22230CC	22230CCK	1300	1600	164	256	2.5	18
150	270	73	3	523	900	22230MB	22230MBK	950	1300	164	256	2.5	18.5

Dimension(mm)				Basic Load Rating(KN)		Bearing Designation		Limiting Speed(rpm)		Mounting Dimension(mm)			Mass(kg)
d	D	B	rsmin	Cr	Cor	Cylindrical Bore	Tapered Bore	Grease	Oil	da(min)	Da(max)	ra(max)	Mass(kg)
160	290	80	3	850	1280	22232CA	22232CAK	1000	1400	174	276	2.5	23.1
160	290	80	3	660	1170	22232MB	22232MBK	900	1200	174	276	2.5	22.2
170	310	86	4	975	1500	22234CA	22234CAK	950	1200	188	292	3	29
170	310	86	4	740	1330	22234MB	22234MBK	850	1100	188	292	3	29
180	320	86	4	1010	1590	22236CA	22236CAK	900	1100	198	302	3	30
180	320	86	4	1040	1630	22236CA	22236CAK	1100	1300	198	302	3	29.4
180	320	86	4	757	1410	22236MB	22236MBK	800	1000	198	302	3	30
190	340	92	4	842	1555	22238MB	22238MBK	750	950	208	322	3	35.3
200	360	98	4	947	1790	22240MB	22240MBK	700	900	218	342	3	47.7
220	400	108	4	1200	2280	22244MB	22244MBK	630	800	238	382	3	61.5
280	500	130	5	1740	3480	22256CA	22256CAK	500	630	302	478	4	112.3
300	540	140	5	1895	3550	22260CA	22260CAK	450	560	322	518	4	134
320	580	150	5	2500	4560	22264CA	22264CAK	680	860	342	558	4	175
45	90	33	1.5	123.6	142.1	22308CA	22308CAK	4300	5300	49	81	1.5	1
45	90	33	1.5	123.6	142.1	22308CC	22308CCK	4500	6000	49	81	1.5	1.02
45	90	33	1.5	133.9	152.4	22308CTN1	22308KCTN1	4500	6000	48	81	1.5	1.02
45	90	33	1.5	75.7	93.2	22308MB	22308MBK	4000

Bearings

Bearing Machine

Bearing Service

Spherical roller bearing