Unit of Measure

Technical Specifications

Type

Tapered Roller Bearing

Bore Type

Round

Material

Case Carburized Steel

Style

Cone & Cup

Precision Rating

Class 4

Cone Number

25878

Cup Number

25820

Configuration

One

Lubrication

w/o Oil Hole

e (Axial Load Factor)

0.29

Y2 (Axial Load Factor)

2.07

Static Load Rating

19100 lbf85000 N85.00 kN

Dynamic Load Rating

16000 lbf71000 N71.00 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

1.3750 in34.925 mm

D

2.8750 in73.025 mm

Wo

0.7500 in19.050 mm

Wi

0.9688 in24.608 mm

W

0.9375 in23.812 mm

r

0.09 in2.3 mm

R

0.14 in3.5 mm

a (Effective Load Center)

-0.01 in-0.1 mm

X

2.68 in68.0 mm

Z

2.52 in64.0 mm