Spherical Roller Bearing, buy 238/670 CA 248/670 CA 239/670 CA 230/670 CA 240/670 CA 231/670 CA 241/670 CA 232/670 CA Spherical Roller Bearings on China Suppliers Mobile

Product Details

	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
238/670 CA	670	820	112	2210	6300	270	350	136	4,0	0,11	6,10	9,10	6,30
248/670 CA	670	820	150	3100	9600	270	350	178	4,0	0,16	4,20	6,30	4,00
239/670 CA	670	900	170	4400	10600	260	340	313	6,0	0,17	4,00	5,90	4,00
230/670 CA	670	980	230	6900	15000	240	310	601	7,5	0,22	3,00	4,60	3,20
240/670 CA	670	980	308	9500	20000	190	270	807	7,5	0,28	2,40	3,60	2,50
231/670 CA	670	1090	336	11000	22500	175	240	1280	7,5	0,30	2,30	3,40	2,20
241/670 CA	670	1090	412	14000	31500	150	190	1560	7,5	0,36	1,87	2,79	1,83
232/670 CA	670	1220	438	15000	32000	160	210	2300	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).

Contact with us via email sale01@hady.Ltd directly for detail requirement.