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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

29600 RPM

Limiting Speed - Grease

14900 RPM

Configuration

One

Factor

9.3

Static Load Rating

4250 lbf18900 N18.90 kN

Dynamic Load Rating

6950 lbf31000 N31.00 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

1.7717 in45.000 mm

D

3.3465 in85.000 mm

B

0.7480 in19.000 mm

d1

2.2559 in57.300 mm

d2

2.0433 in51.900 mm

D1

2.8740 in73.000 mm

r

0.0433 in1.100 mm

r1

0.0236 in0.600 mm

Contact Angle

15 º

a

0.7205 in18.000 mm

da min

2.0472 in52.000 mm

db min

1.9488 in49.500 mm

Da max

3.0709 in78.000 mm

ras max

0.0394 in1.000 mm

r1as max

0.0236 in0.600 mm

Double Row Width

1.4961 in38.000 mm

Triple Row Width

2.2441 in57.000 mm

Quadruple Row Width

2.9921 in76.000 mm