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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

430 rpm

Limiting Speed - Grease

330 rpm

e

0.32

Y1

2.12

Y2

3.16

Y0

2.08

Series

231

Radial Internal Clearance

C3

Ring Modification

Relube

Tolerance

JIS-0 RBEC-1

Static Load Rating

3080000 lbf13700000 N13700.00 kN

Dynamic Load Rating

1560000 lbf6950000 N6950.00 kN

Enclosure

Open

Weight

1287.498 lb584.000 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

19.6850 in500.000 mm

D

32.6772 in830.000 mm

B

10.3937 in264 mm

r

0.2953 in7.500 mm

W0

1.2992 in33.000 mm

d0

0.7874 in20.000 mm

da min

21.1024 in536.000 mm

Da max

31.2598 in794.000 mm

ras max

0.2362 in6.000 mm