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Unit of Measure

Technical Specifications

Type

Spherical Roller Bearing

Bore Type

Round

Material

Through Hardened Steel

Cage Type

Machined

Cage Material

Brass

Limiting Speed - Oil

3000 RPM

Limiting Speed - Grease

2400.0 RPM

e

0.28

Y1

2.39

Y2

3.56

Y0

2.34

Series

231

Radial Internal Clearance

CN

Ring Modification

Relube

Tolerance

JIS-0 RBEC-1

Static Load Rating

133000 lbf590000 N590.00 kN

Dynamic Load Rating

108000 lbf480000 N480.00 kN

Enclosure

Open

Weight

9.811 lb4.450 kg

Operating Temperature Range

-40 to 400 ºF-40 to 200 ºC

Dimensional Specifications


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

d

3.9370 in100.000 mm

D

6.4961 in165.000 mm

B

2.0472 in52.000 mm

d1

4.4882 in114.000 mm

D1

5.7874 in147.000 mm

r

0.0787 in2.000 mm

W0

0.3150 in8.000 mm

d0

0.1575 in4.000 mm

da min

4.3701 in111.000 mm

Da max

6.0630 in154.000 mm

ras max

0.0787 in2.000 mm