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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

438

Cup Number

432

Configuration

One

Lubrication

w/o Oil Hole

e (Axial Load Factor)

0.28

Y2 (Axial Load Factor)

2.11

Static Load Rating

29000 lbf129000 N129.00 kN

Dynamic Load Rating

24300 lbf108000 N108.00 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

1.7500 in44.450 mm

D

3.7500 in95.250 mm

Wo

0.8750 in22.225 mm

Wi

1.1772 in29.900 mm

W

1.0938 in27.783 mm

r

0.09 in2.3 mm

R

0.14 in3.5 mm

a (Effective Load Center)

-0.36 in-9.2 mm

U

2.24 in57.0 mm

V

2.01 in51.0 mm

X

3.43 in87.0 mm

Z

3.27 in83.0 mm