213K Series

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Spherical roller bearing

Spherical roller bearings have double row rollers, the outer ring has a common spherical raceway, the inner ring has two raceways and is inclined at an angle relative to the bearing axis. This ingenious structure makes it have automatic centering performance, so it is not easy to be affected by the angle of the shaft and the bearing box seat or the bending of the shaft. It is suitable for the installation error or the deflection of the shaft. The bearing can not only bear radial load, but also can bear two-way axial load.

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Spherical roller bearing

Spherical roller bearings have two kinds of inner holes: cylindrical and conical. The taper of conical taper hole is 1:30 and 1:12. This conical inner hole bearing is equipped with a set sleeve or a withdrawal sleeve. The conical inner hole self-aligning ball bearing can be easily and quickly assembled on the optical axis or stepped crankshaft.
The types of self-aligning roller bearings are: self-aligning roller bearings (20000CC type); Tapered hole self-aligning roller bearings (20000CCK type); Spherical roller bearings (20000CC/W33 type); Tapered hole self-aligning roller bearings (20000CCK/W33 type); Self-aligning roller bearings (20000CCH type) 33 kinds of self-aligning roller bearings mounted on tightening sleeves

213K Series
Main dimensions (mm)				Rated load (kN)		Permissible speed (rpm)		Weight (Kg)	Model
d	D	B	rs min	Cr	Cor	grease lubrication	oil lubrication
40	90	23	1.5	88	90	3,200	4,900	0.705	21308
40	90	23	1.5	88	90	3,200	4,900	0.694	21308K
40	90	23	1.5	88	90	3,200	4,900	0.694	21308KW33C3
40	90	23	1.5	88	90	3,200	4,900	0.705	21308W33C3
45	100	25	1.5	102	106	2,900	4,400	0.927	21309
45	100	25	1.5	102	106	2,900	4,400	0.912	21309K
45	100	25	1.5	102	106	2,900	4,400	0.912	21309KW33C3
45	100	25	1.5	102	106	2,900	4,400	0.927	21309W33C3
50	110	27	2	118	127	2,600	4,000	1.21	21310
50	110	27	2	118	127	2,600	4,000	1.19	21310K
50	110	27	2	118	127	2,600	4,000	1.19	21310KW33C3
50	110	27	2	118	127	2,600	4,000	1.21	21310W33C3
55	120	29	2	145	163	2,400	3,700	1.71	21311
55	120	29	2	145	163	2,400	3,700	1.69	21311K
55	120	29	2	145	163	2,400	3,700	1.69	21311KW33C3
55	120	29	2	145	163	2,400	3,700	1.71	21311W33C3
60	130	31	2.1	167	191	2,200	3,400	2.1	21312
60	130	31	2.1	167	191	2,200	3,400	2.07	21312K
60	130	31	2.1	167	191	2,200	3,400	2.07	21312KW33C3
60	130	31	2.1	167	191	2,200	3,400	2.1	21312W33C3
65	140	33	2.1	194	228	2,000	3,100	2.55	21313
65	140	33	2.1	194	228	2,000	3,100	2.51	21313K
65	140	33	2.1	194	228	2,000	3,100	2.51	21313KW33C3
65	140	33	2.1	194	228	2,000	3,100	2.55	21313W33C3
70	150	35	2.1	220	262	1,900	2,900	3.18	21314
70	150	35	2.1	220	262	1,900	2,900	3.14	21314K
70	150	35	2.1	220	262	1,900	2,900	3.14	21314KW33C3
70	150	35	2.1	220	262	1,900	2,900	3.18	21314W33C3
75	160	37	2.1	239	287	1,800	2,700	3.81	21315
75	160	37	2.1	239	287	1,800	2,700	3.76	21315K
75	160	37	2.1	239	287	1,800	2,700	3.76	21315KW33C3
75	160	37	2.1	239	287	1,800	2,700	3.81	21315W33C3
80	170	39	2.1	260	315	1,700	2,500	4.53	21316
80	170	39	2.1	260	315	1,700	2,500	4.47	21316K
80	170	39	2.1	260	315	1,700	2,500	4.47	21316KW33C3
80	170	39	2.1	260	315	1,700	2,500	4.53	21316W33C3
85	180	41	3	289	355	1,600	2,400	5.35	21317
85	180	41	3	289	355	1,600	2,400	5.28	21317K
85	180	41	3	289	355	1,600	2,400	5.28	21317KW33C3
85	180	41	3	289	355	1,600	2,400	5.35	21317W33C3
90	190	43	3	320	400	1,500	2,300	6.3	21318
90	190	43	3	320	400	1,500	2,300	6.21	21318K
90	190	43	3	320	400	1,500	2,300	6.21	21318KW33C3
90	190	43	3	320	400	1,500	2,300	6.3	21318W33C3
95	200	45	3	335	420	1,400	2,100	7.1	21319
95	200	45	3	335	420	1,400	2,100	7	21319K
95	200	45	3	335	420	1,400	2,100	7	21319KW33C3
95	200	45	3	335	420	1,400	2,100	7.1	21319W33C3
100	215	47	3	370	465	1,300	2,000	8.89	21320
100	215	47	3	370	465	1,300	2,000	8.78	21320K
100	215	47	3	370	465	1,300	2,000	8.78	21320KW33C3
100	215	47	3	370	465	1,300	2,000	8.89	21320W33C3
110	240	50	3	495	615	1,200	1,800	11.2	21322
110	240	50	3	495	615	1,200	1,800	11.1	21322K
110	240	50	3	495	615	1,200	1,800	11.1	21322KW33C3
110	240	50	3	495	615	1,200	1,800	11.2	21322W33C3

Spherical roller bearing