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Unit of Measure

Technical Specifications

Type

N/A Spherical Roller Bearing

Bore Type

N/A Round

Material

N/A Through Hardened Steel

Cage Type

N/A Machined

Cage Material

N/A Brass

Limiting Speed - Oil

N/A 2000 rpm

Limiting Speed - Grease

N/A 1600 rpm

e

N/A 0.29

Y1

N/A 2.35

Y2

N/A 3.50

Y0

N/A 2.30

Series

N/A 231

Radial Internal Clearance

N/A CN

Ring Modification

N/A Relube

Tolerance

N/A JIS-0 RBEC-1

Static Load Rating

N/A 305000 lbf1350000 N1350.00 kN

Dynamic Load Rating

N/A 238000 lbf1060000 N1060.00 kN

Enclosure

N/A Open

Weight

N/A 34.833 lb15.8 kg

Operating Temperature Range

N/A -40 to 400 ºF-40 to 200 ºC

Dimensional Specifications


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

d

N/A 5.9055 in150.000 mm

D

N/A 9.8425 in250.000 mm

B

N/A 3.1496 in80 mm

d1

N/A 6.7323 in171.000 mm

D1

N/A 8.7795 in223.000 mm

r

N/A 0.0827 in2.1 mm

W0

N/A 0.5118 in13.000 mm

d0

N/A 0.2362 in6.000 mm

da min

N/A 6.3780 in162.000 mm

Da max

N/A 9.3701 in238.000 mm

ras max

N/A 0.0827 in2.100 mm