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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 400 rpm

Limiting Speed - Grease

N/A 310 rpm

e

N/A 0.30

Y1

N/A 2.22

Y2

N/A 3.30

Y0

N/A 2.17

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 3190000 lbf14200000 N14200.00 kN

Dynamic Load Rating

N/A 1570000 lbf7000000 N7000.00 kN

Enclosure

N/A Open

Weight

N/A 1391.298 lb631.083 kg

Operating Temperature Range

N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


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

d

N/A 20.8661 in530.000 mm

D

N/A 34.2520 in870.000 mm

B

N/A 10.7087 in272 mm

r

N/A 0.2953 in7.500 mm

W0

N/A 0.9449 in24.000 mm

d0

N/A 0.7874 in20.000 mm

da min

N/A 22.2835 in566.000 mm

Da max

N/A 32.8346 in834.000 mm

ras max

N/A 0.2362 in6.000 mm