Spherical Roller Bearing, buy 22212 MB 22212 CA 22212 EX 22212 C 21312 CA 21312 EX 21312 C 22312 EX 22312 CA 22312 VS C4 F80 22312 C 22312 MB 22312 MA C4 F80 22312 C 2RS W33 Spherical Roller Bearing on China Suppliers Mobile

Product Details

	d	D	B	C	Co	rpm		Kg	rs _min	e	Y1	Y2	Yo
	mm			kN		1 min−1		Kg	mm	mm
22212 MB	60	110	28	137	164	3200	4100	1,19	1,5	0,27	2,50	3,70	2,40
22212 CA	60	110	28	127	154	3700	4900	1,20	1,5	0,25	2,71	4,04	2,65
22212 EX	60	110	28	133,4	154	4760	6375	1,50	1,2	0,24	2,78	4,13	2,71
22212 C	60	110	28	145	175	3400	4500	1,16	1,5	0,29	2,33	3,47	2,40
21312 CA	60	130	31	165	175	2900	3800	1,99	2,1	0,26	2,64	3,93	2,58
21312 EX	60	130	31	178,5	190	4080	5355	2,10	2,1	0,24	2,76	4,11	2,70
21312 C	60	130	31	150	180	3000	4000	1,95	2,1	0,24	2,81	4,19	2,80
22312 EX	60	130	46	288,8	316	3400	4500	2,93	2,1	0,37	1,85	2,75	1,76
22312 CA	60	130	46	236	273	2700	3600	3,01	2,1	0,38	1,78	2,65	1,74
22312 VS C4 F80	60	130	46	262	313	3800	4400	2,94	2,1	0,36	1,90	2,80	1,80
22312 C	60	130	46	270	320	2800	3800	2,95	2,1	0,41	1,65	2,45	1,70
22312 MB	60	130	46	260	310	2600	3400	2,98	2,1	0,43	1,57	2,34	1,60
22312 MA C4 F80	60	130	46	380	310	2600	3400	2,98	2,1	0,43	1,57	2,34	1,60
22312 C 2RS	60	130	46	243	284	3800	4400	2,77	2,1	0,36	1,90	2,80	1,80

Spherical roller bearings are designed to sustain heavy loads, shaft misalignment and deﬂection. They contain two symmetrical or asymmetrical rows of barrel-shaped rollers, which align themselves in the outer race sphered track. They are, therefore, able to carry very heavy radial loads and axial loads in either direction.

Roller guidance is achieved by the ﬁxed ﬂanges on the inner ring for the CA, EX, MB, VS and MA - design or a ﬂoating ring for the C design. For further information, see roller guidance design on next page.

Misalignment

The table below gives ﬁgures for permitted misalignment in the different bearing series. Dimensions in accordance with ISO 15:2011

Bearing series	Angular misalignment degrees
213	1°
222	1.5°
223	2°
230	1.5°
231	1.5°
232	2.5°
239	1.5°
240	2°
241	2.5°

EX : 1 piece brass cage, roller guided between 2 inner ring ﬂanges. Cage is guided on the rollers. Assymetrical roller position.

C : 2 pressed sheet steel cages, roller guided on a ﬂoating rings.

CA : 1 piece brass cage, roller guided between 2 inner ring ﬂanges. Cage is guided on the rollers. Assymetrical roller position.

MB : 2 piece brass cage, roller guided between 2 inner ring ﬂanges and one central rib. Cage is guided on the inner ring.

VS C4 F80 : 1 piece brass cage, roller guided between 2 inner ring ﬂanges. Cage is guided on the outer ring.

MA C4 F80 : 2 piece brass cage, roller guided between 2 inner ring ﬂanges and one central rib. Cage is guided on the outer ring.

C 2RS : Steel cage with 2 NBR seals

EX meet the higher exigency of the market. EX bearings are produced with higher grade steel, enhanced heat treatment process, higher machining accuracy and better surface roughness. These improvements are resulting in bearings that run with less noise and less vibrations and have a improved energy efﬁciency.

C 2RS type is a sealed spherical roller bearing with a steel cage C and 2 NBR seals. High temperature seals 2VS are available as well. Sealed bearings are ﬁlled with lithium based grease. Due to the seal, misaligment is reduced. As well for some types the bearing with differs from the standard width.

Spherical roller bearings are manufactured with tapered bore-K(1:12) and K30 (1:30) with lubrication groove and 3 lubrication holes on the outside diameter W33. All our sphericals have the W33 feature.

Tolerances

Spherical roller bearings with cylindrical and tapered bore are generally manufactured to “PO” precision class. Radial Clearance

Spherical roller bearings with cylindrical and tapered bore are generally manufactured to normal (CN), C2, C3, C4 and C5 clearances. Heat Treatment

Spherical roller bearings with outside diameter D>240mm of all series given in this catalog can be used to an operating temperature of +150°C (+302°F). Small size bearings operate normally at temperatures up to +120°C (+248°F).