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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 2200 RPM

Limiting Speed - Grease

N/A 1800 RPM

e

N/A 0.26

Y1

N/A 2.55

Y2

N/A 3.80

Y0

N/A 2.50

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 232000 lbf1030000 N1030.00 kN

Dynamic Load Rating

N/A 180000 lbf802000 N802.00 kN

Enclosure

N/A Open

Weight

N/A 22.708 lb10.300 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 5.5118 in140.000 mm

D

N/A 8.8583 in225.000 mm

B

N/A 2.6772 in68.000 mm

d1

N/A 6.2598 in159.000 mm

D1

N/A 7.9921 in203.000 mm

r

N/A 0.0827 in2.100 mm

W0

N/A 0.4331 in11.000 mm

d0

N/A 0.1969 in5.000 mm

da min

N/A 5.9843 in152.000 mm

Da max

N/A 8.3858 in213.000 mm

ras max

N/A 0.0827 in2.100 mm