Unit of Measure

Technical Specifications

Type

Spherical Roller Bearing

Bore Type

Round

Material

Through Hardened Steel

Cage Type

Machined

Cage Material

Brass

Limiting Speed - Oil

2400 rpm

Limiting Speed - Grease

1900 rpm

e

0.27

Y1

2.51

Y2

3.74

Y0

2.45

Series

231

Radial Internal Clearance

CN

Ring Modification

Relube

Tolerance

JIS-0 RBEC-1

Static Load Rating

204000 lbf906000 N906.00 kN

Dynamic Load Rating

160000 lbf710000 N710.00 kN

Enclosure

Open

Weight

18.761 lb8.51 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

5.1181 in130.000 mm

D

8.2677 in210 mm

B

2.5197 in64 mm

d1

5.8268 in148.000 mm

D1

7.4409 in189.000 mm

r

0.07870 in2.000 mm

W0

0.3937 in10.000 mm

d0

0.1772 in4.500 mm

da min

5.5512 in141.000 mm

Da max

7.8346 in199.000 mm

ras max

0.0787 in2.000 mm