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Unit of Measure

Technical Specifications

Type

Main Spindle Bearing

Bore Type

Round

Material

High Carbon Chrome Steel

Cage Type

Machined

Cage Material

Phenolic Resin

Ball Material

Steel

Limiting Speed - Oil

20400 RPM

Limiting Speed - Grease

10300 RPM

Configuration

One

Factor

9.5

Static Load Rating

8100 lbf36000 N36.00 kN

Dynamic Load Rating

12000 lbf53500 N53.50 kN

Enclosure

Open

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Single Angular Contact Ball Bearings for Motors and Lathes - Dimensions

d

2.5591 in65.000 mm

D

4.7244 in120.000 mm

B

0.9055 in23.000 mm

d1

3.2480 in82.500 mm

d2

2.9646 in75.300 mm

D1

4.0354 in102.500 mm

r

0.0591 in1.500 mm

r1

0.0394 in1.000 mm

Contact Angle

15 º

a

0.9488 in24.100 mm

da min

2.8937 in73.500 mm

db min

2.7756 in70.500 mm

Da max

0.4528 in11.500 mm

ras max

0.0591 in1.500 mm

r1as max

0.0394 in1.000 mm

Double Row Width

1.8110 in46.000 mm

Triple Row Width

2.7165 in69.000 mm

Quadruple Row Width

3.6220 in92.000 mm