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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

32500 RPM

Limiting Speed - Grease

16300 RPM

Precision

ISO Class 2

Configuration

One

Preload

Normal

Factor

10.1

Static Load Rating

2830 lbf12600 N12.60 kN

Dynamic Load Rating

4200 lbf18600 N18.60 kN

Enclosure

Open

Weight

0.518 lb0.235 kg

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

2.9528 in75.000 mm

B

0.6299 in16.000 mm

d1

2.1339 in54.200 mm

d2

2.0039 in50.900 mm

D1

2.5827 in65.600 mm

r

0.0394 in1.000 mm

r1

0.0236 in0.600 mm

Contact Angle

15 º

a

0.6339 in16.000 mm

da min

1.9882 in50.500 mm

db min

1.9488 in49.500 mm

Da max

2.7362 in69.500 mm

ras max

0.0394 in1.000 mm

r1as max

0.0236 in0.600 mm

Double Row Width

1.2598 in32.000 mm

Triple Row Width

1.8898 in48.000 mm

Quadruple Row Width

2.5197 in64.000 mm