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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

400 RPM

Limiting Speed - Grease

310 RPM

e

0.30

Y1

2.22

Y2

3.30

Y0

2.17

Series

231

Radial Internal Clearance

CN

Ring Modification

Relube

Tolerance

JIS-0 RBEC-1

Static Load Rating

3190000 lbf14200000 N14200.00 kN

Dynamic Load Rating

1570000 lbf7000000 N7000.00 kN

Enclosure

Open

Weight

1391.298 lb631.083 kg

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


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

d

20.8661 in530.000 mm

D

34.2520 in870.000 mm

B

10.7087 in272.000 mm

r

0.2953 in7.500 mm

W0

0.9449 in24.000 mm

d0

0.7874 in20.000 mm

da min

22.2835 in566.000 mm

Da max

32.8346 in834.000 mm

ras max

0.2362 in6.000 mm