Unit of Measure

Technical Specifications

Type

Spherical Roller Bearing

Bore Type

Round

Material

Through Hardened Steel

Cage Type

Pressed

Cage Material

Steel

Limiting Speed - Oil

1700 rpm

Limiting Speed - Grease

1300 rpm

e

0.29

Y1

2.32

Y2

3.45

Y0

2.26

Series

231

Radial Internal Clearance

CN

Ring Modification

Relube

Tolerance

JIS-0 RBEC-1

Static Load Rating

440000 lbf1960000 N1960.00 kN

Dynamic Load Rating

335000 lbf1490000 N1490.00 kN

Enclosure

Open

Weight

59.282 lb26.890 kg

Operating Temperature Range

-40 to 400 ºF-40 to 200 ºC

Dimensional Specifications


Spherical Roller Bearing w/ Standard Bore & Oil Groove, 231 Series - Dimensions

d

7.0866 in180.000 mm

D

11.811 in300 mm

B

3.7795 in96 mm

d1

8.0709 in205.000 mm

D1

10.5118 in267.000 mm

r

0.11810 in3.000 mm

W0

0.5906 in15.000 mm

d0

0.2756 in7.000 mm

da min

7.6378 in194.000 mm

Da max

11.2598 in286.000 mm

ras max

0.1181 in3 mm