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Unit of Measure

Technical Specifications

Type

Tapered Roller Bearing

Bore Type

Round

Material

Case Carburized Steel

Limiting Speed - Grease

5700 RPM

Style

Cone & Cup

Precision Rating

Class 4

Cone Number

2580

Cup Number

2520

Configuration

One

Lubrication

w/o Oil Hole

e (Axial Load Factor)

0.27

Y2 (Axial Load Factor)

2.19

Static Load Rating

18300 lbf81500 N81.50 kN

Dynamic Load Rating

15500 lbf69000 N69.00 kN

Enclosure

Open

Operating Temperature Range

-40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Tapered Roller Set - Inch Series and J Series - Dimensions

B

1.2500 in31.750 mm

D

2.6150 in66.421 mm

Wo

0.8125 in20.638 mm

Wi

0.9983 in25.357 mm

W

1.0000 in25.400 mm

r

0.1300 in3.300 mm

R

0.03 in0.8 mm

a (Effective Load Center)

-0.3600 in-9.100 mm

U

1.52 in38.5 mm

V

1.48 in37.5 mm

X

2.44 in62.0 mm

Z

2.24 in57.0 mm

ras max

0.0315 in0.8 mm

r1as max

0.1299 in3.000 mm