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

72218C

Cup Number

72487

Configuration

One

Lubrication

w/o Oil Hole

e (Axial Load Factor)

0.74

Y2 (Axial Load Factor)

0.81

Static Load Rating

49000 lbf217000 N217.00 kN

Dynamic Load Rating

38500 lbf171000 N171.00 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

2.1875 in55.563 mm

D

4.8750 in123.825 mm

Wo

1 in25.4 mm

Wi

1.2910 in32.791 mm

W

1.4375 in36.512 mm

r

0.13 in3.3 mm

R

0.14 in3.5 mm

a (Effective Load Center)

0.08 in2.0 mm

U

3.15 in80.0 mm

V

2.64 in67.0 mm

X

4.57 in116.0 mm

Z

4.02 in102.0 mm