Custom 21300 Series Spherical Roller Bearing Manufacturers, Factory

21300 Series

The 21300 series spherical roller bearing is a high-performance, durable rolling bearing designed to carry heavy loads and compensate for axis deflection. This type of bearing adopts a double-row roller structure. The rollers are arranged in a spherical surface between the inner and outer rings. They can automatically adjust their alignment to adapt to shaft center deviation and reduce the impact caused by installation errors or shaft deflection. The bearings of the 21300 series have high radial load capacity and can also withstand certain axial loads. They are suitable for industrial fields such as heavy machinery and equipment, mining, metallurgy, and papermaking. They are designed to provide excellent durability and reliability in harsh working environments.

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Designation	Principal Dimensions(mm)				Basic Load Ratings(KN)		Limited Speed(rpm)		Weight
Designation	d	D	B	rs min	Dynamic(Cr)	Static(Cor)	Grease	Oil	(kg)
21308	40	90	23	1.5	88	90	3200	4900	0.705
21308K	40	90	23	1.5	88	90	3200	4900	0.694
21308KW33C3	40	90	23	1.5	88	90	3200	4900	0.694
21308W33C3	40	90	23	1.5	88	90	3200	4900	0.705
21309	45	100	25	1.5	102	106	2900	4400	0.927
21309K	45	100	25	1.5	102	106	2900	4400	0.912
21309KW33C3	45	100	25	1.5	102	106	2900	4400	0.912
21309W33C3	45	100	25	1.5	102	106	2900	4400	0.927
21310	50	110	27	2	118	127	2600	4000	1.21
21310K	50	110	27	2	118	127	2600	4000	1.19
21310KW33C3	50	110	27	2	118	127	2600	4000	1.19
21310W33C3	50	110	27	2	118	127	2600	4000	1.21
21311	55	120	29	2	145	163	2400	3700	1.71
21311K	55	120	29	2	145	163	2400	3700	1.69
21311KW33C3	55	120	29	2	145	163	2400	3700	1.69
21311W33C3	55	120	29	2	145	163	2400	3700	1.71
21312	60	130	31	2.1	167	191	2200	3400	2.1
21312K	60	130	31	2.1	167	191	2200	3400	2.07
21312KW33C3	60	130	31	2.1	167	191	2200	3400	2.07
21312W33C3	60	130	31	2.1	167	191	2200	3400	2.1
21313	65	140	33	2.1	194	228	2000	3100	2.55
21313K	65	140	33	2.1	194	228	2000	3100	2.51
21313KW33C3	65	140	33	2.1	194	228	2000	3100	2.51
21313W33C3	65	140	33	2.1	194	228	2000	3100	2.55
21314	70	150	35	2.1	220	262	1900	2900	3.18
21314K	70	150	35	2.1	220	262	1900	2900	3.14
21314KW33C3	70	150	35	2.1	220	262	1900	2900	3.14
21314W33C3	70	150	35	2.1	220	262	1900	2900	3.18
21315	75	160	37	2.1	239	287	1800	2700	3.81
21315K	75	160	37	2.1	239	287	1800	2700	3.76
21315KW33C3	75	160	37	2.1	239	287	1800	2700	3.76
21315W33C3	75	160	37	2.1	239	287	1800	2700	3.81
21316	80	170	39	2.1	260	315	1700	2500	4.53
21316K	80	170	39	2.1	260	315	1700	2500	4.47
21316KW33C3	80	170	39	2.1	260	315	1700	2500	4.47
21316W33C3	80	170	39	2.1	260	315	1700	2500	4.53
21317	85	180	41	3	289	355	1600	2400	5.35
21317K	85	180	41	3	289	355	1600	2400	5.28
21317KW33C3	85	180	41	3	289	355	1600	2400	5.28
21317W33C3	85	180	41	3	289	355	1600	2400	5.35
21318	90	190	43	3	320	400	1500	2300	6.3
21318K	90	190	43	3	320	400	1500	2300	6.21
21318KW33C3	90	190	43	3	320	400	1500	2300	6.21
21318W33C3	90	190	43	3	320	400	1500	2300	6.3
21319	95	200	45	3	335	420	1400	2100	7.1
21319K	95	200	45	3	335	420	1400	2100	7
21319KW33C3	95	200	45	3	335	420	1400	2100	7
21319W33C3	95	200	45	3	335	420	1400	2100	7.1
21320	100	215	47	3	370	465	1300	2000	8.89
21320K	100	215	47	3	370	465	1300	2000	8.78
21320KW33C3	100	215	47	3	370	465	1300	2000	8.78
21320W33C3	100	215	47	3	370	465	1300	2000	8.89
21322	110	240	50	3	495	615	1200	1800	11.2
21322K	110	240	50	3	495	615	1200	1800	11.1
21322KW33C3	110	240	50	3	495	615	1200	1800	11.1
21322W33C3	110	240	50	3	495	615	1200	1800	11.2

21300 Series

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