Spherical Roller Bearing, buy 238/850 CA 239/850 CA 249/850 CA 230/850 CA 240/850 CA 231/850 CA 241/850 CA，Spherical Roller Bearings on China Suppliers Mobile

Product Details

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	Principal dimensions			Basic load ratings		Speed limits		Weight	Radius	Calculation factors
Part number	Bore	Outer	Width	Dynamic	Static	Grease	Oil	Weight	Radius	Calculation factors
	d	D	B	C	Co	rpm		Kg	rs _min	e	Y1	Y2	Yo
	mm			kN		1 min−1		Kg	mm	mm
238/850 CA	850	1030	136	3300	9800	180	250	244	5,0	0,11	6,10	9,10	6,30
239/850 CA	850	1120	200	6450	15880	280	380	560	6,0	0,17	3,97	5,91	4,00
249/850 CA	850	1120	272	8200	22500	170	220	750	6,0	0,22	3,00	4,60	2,80
230/850 CA	850	1220	272	8450	22500	180	240	1074	7,5	0,20	3,40	5,00	3,20
240/850 CA	850	1220	365	12000	29500	220	280	1410	7,5	0,27	2,50	3,72	2,50
231/850 CA	850	1360	400	16000	34200	130	170	2260	12	0,28	2,40	3,60	2,50
241/850 CA	850	1360	500	20000	45100	105	140	2750	12	0,35	1,90	2,90	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).