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

25700 rpm

Limiting Speed - Grease

12800 rpm

Configuration

One

Factor

10.8

Static Load Rating

2880 lbf12800 N12.80 kN

Dynamic Load Rating

3450 lbf15300 N15.30 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

2.3622 in60 mm

D

3.3465 in85 mm

B

0.5118 in13 mm

d1

2.6811 in68.100 mm

d2

2.5630 in65.100 mm

D1

3.0276 in76.900 mm

r

0.0394 in1.000 mm

r1

0.0236 in0.600 mm

Contact Angle

15 º

a

0.6417 in16.3 mm

da min

2.5787 in65.500 mm

db min

2.5394 in64.500 mm

Da max

3.1299 in79.500 mm

ras max

0.0394 in1 mm

r1as max

0.0236 in0.600 mm

Double Row Width

1.0236 in26.000 mm

Triple Row Width

1.5354 in39.000 mm

Quadruple Row Width

2.0472 in52.000 mm