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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

111700 RPM

Limiting Speed - Grease

55300 RPM

Configuration

One

Factor

9.6

Static Load Rating

274 lbf1220 N1.22 kN

Dynamic Load Rating

580 lbf2570 N2.57 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

0.4724 in12.000 mm

D

0.9449 in24.000 mm

B

0.2362 in6.000 mm

d1

0.6299 in16.000 mm

d2

0.5787 in14.700 mm

D1

0.7874 in20.000 mm

r

0.0118 in0.300 mm

r1

0.0059 in0.150 mm

Contact Angle

15 º

a

0.2126 in5.400 mm

da min

0.5591 in14.200 mm

db min

0.5197 in13.200 mm

Da max

0.8661 in22.000 mm

ras max

0.0118 in0.300 mm

r1as max

0.0059 in0.150 mm

Double Row Width

0.4724 in12.000 mm

Triple Row Width

0.7087 in18.000 mm

Quadruple Row Width

0.9449 in24.000 mm