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Unit of Measure

Technical Specifications

Type

Angular Contact Ball Bearing

Material

High Carbon Chrome Steel

Bore Type

Round

Preload

Light

Enclosure

Open

Precision

ISO Class 4

Configuration

Four

Cage Material

Phenolic

Cage Type

Stratified

Ball Material

Steel

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Quadruple Row Angular Contact Ball Bearing, Machline, Q21 Type - Dimensions

d

2.1654 in55 mm

D

3.1496 in80 mm

B

0.5118 in13 mm

Total Width

2.0472 in52.000 mm

r2

0.0394 in1.000 mm

r3

0.0236 in0.600 mm

d2

2.4449 in62.100 mm

D4

2.9843 in75.800 mm

D5

2.5748 in65.400 mm

E

0.0886 in2.250 mm

Contact Angle

25 º