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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 780 RPM

Limiting Speed - Grease

N/A 600 RPM

e

N/A 0.32

Y1

N/A 2.11

Y2

N/A 3.15

Y0

N/A 2.07

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 1120000 lbf5000000 N5000.00 kN

Dynamic Load Rating

N/A 620000 lbf2750000 N2750.00 kN

Enclosure

N/A Open

Weight

N/A 277.476 lb125.861 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 11.8110 in300.000 mm

D

N/A 19.6850 in500.000 mm

B

N/A 6.2992 in160.000 mm

r

N/A 0.1969 in5.000 mm

W0

N/A 0.6299 in16.000 mm

d0

N/A 0.4724 in12.000 mm

da min

N/A 12.6772 in322.000 mm

Da max

N/A 18.8189 in478.000 mm

ras max

N/A 0.1575 in4.000 mm