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

68450

Cup Number

68712

Configuration

One

Lubrication

w/o Oil Hole

e (Axial Load Factor)

0.50

Y2 (Axial Load Factor)

1.21

Static Load Rating

61000 lbf272000 N272.00 kN

Dynamic Load Rating

41000 lbf182000 N182.00 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

4.5000 in114.300 mm

D

7.1250 in180.975 mm

Wo

1 in25.4 mm

Wi

1.2500 in31.750 mm

W

1.3750 in34.925 mm

r

0.13 in3.3 mm

R

0.14 in3.5 mm

a (Effective Load Center)

0.21 in5.3 mm

U

5.12 in130.0 mm

V

4.84 in123.0 mm

X

6.77 in172.0 mm

Z

6.42 in163.0 mm