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Unit of Measure

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Ordering Options

N/A Contact NTN Customer Relations

Technical Specifications

Type

N/A Tapered Roller Bearing

Bore Type

N/A Round

Material

N/A Case Carburized Steel

Style

N/A Cone & Cup

Precision Rating

N/A Class 2

Cone Number

N/A 38800

Cup Number

N/A 38820

Configuration

N/A One

Lubrication

N/A w/o Oil Hole

e (Axial Load Factor)

N/A 0.37

Y2 (Axial Load Factor)

N/A 1.64

Static Load Rating

N/A 128000 lbf570000 N570.00 kN

Dynamic Load Rating

N/A 51000 lbf226000 N226.00 kN

Enclosure

N/A Open

Operating Temperature Range

N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications


Tapered Roller Set - Inch Series and J Series - Dimensions

B

N/A 10.3750 in263.525 mm

D

N/A 12.8125 in325.438 mm

Wo

N/A 1.0000 in25.400 mm

Wi

N/A 1.1250 in28.575 mm

W

N/A 1.1250 in28.575 mm

r

N/A 0.0600 in1.500 mm

R

N/A 0.06 in1.5 mm

a (Effective Load Center)

N/A 0.8000 in20.300 mm

U

N/A 10.83 in275.0 mm

V

N/A 10.83 in275.0 mm

X

N/A 12.40 in315.0 mm

Z

N/A 12.28 in312.0 mm