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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

730 rpm

Limiting Speed - Grease

560 rpm

e

0.33

Y1

2.06

Y2

3.07

Y0

2.02

Series

231

Radial Internal Clearance

CN

Ring Modification

Relube

Tolerance

JIS-0 RBEC-1

Static Load Rating

1300000 lbf5800000 N5800.00 kN

Dynamic Load Rating

695000 lbf3100000 N3100.00 kN

Enclosure

Open

Weight

368.172 lb167.000 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

12.5984 in320.000 mm

D

21.2598 in540.000 mm

B

6.9291 in176 mm

r

0.1969 in5 mm

W0

1.0630 in27.000 mm

d0

0.6299 in16.000 mm

da min

13.4646 in342.000 mm

Da max

20.3937 in518.000 mm

ras max

0.1575 in4.000 mm