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

27500 rpm

Limiting Speed - Grease

13900 rpm

Configuration

One

Factor

9.5

Static Load Rating

4700 lbf20800 N20.80 kN

Dynamic Load Rating

7300 lbf32500 N32.50 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

1.9685 in50 mm

D

3.5433 in90.000 mm

B

0.7874 in20 mm

d1

2.4488 in62.200 mm

d2

2.2362 in56.800 mm

D1

3.0709 in78.000 mm

r

0.0433 in1.100 mm

r1

0.0236 in0.600 mm

Contact Angle

15 º

a

0.7677 in19.500 mm

da min

2.2441 in57.000 mm

db min

2.1457 in54.500 mm

Da max

3.2677 in83.000 mm

ras max

0.0394 in1 mm

r1as max

0.0236 in0.600 mm

Double Row Width

1.5748 in40.000 mm

Triple Row Width

2.3622 in60.000 mm

Quadruple Row Width

3.1496 in80.000 mm