Print Back
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 500 rpm

Limiting Speed - Grease

N/A 390 rpm

e

N/A 0.31

Y1

N/A 2.15

Y2

N/A 3.21

Y0

N/A 2.11

Series

N/A 231

Radial Internal Clearance

N/A C3

Ring Modification

N/A Relube

Tolerance

N/A JIS-0 RBEC-1

Static Load Rating

N/A 2270000 lbf10100000 N10100.00 kN

Dynamic Load Rating

N/A 1170000 lbf5200000 N5200.00 kN

Enclosure

N/A Open

Weight

N/A 815.709 lb370.000 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 17.3228 in440.000 mm

D

N/A 28.3465 in720.000 mm

B

N/A 8.8976 in226 mm

r

N/A 0.2362 in6 mm

W0

N/A 1.2992 in33.000 mm

d0

N/A 0.7874 in20.000 mm

da min

N/A 18.4252 in468.000 mm

Da max

N/A 27.2441 in692.000 mm

ras max

N/A 0.1969 in5.000 mm