Bearing Finder
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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 4

Cone Number

 N/A 28990

Cup Number

 N/A 28920

Configuration

 N/A One

Lubrication

 N/A w/o Oil Hole

e (Axial Load Factor)

 N/A 0.43

Y2 (Axial Load Factor)

 N/A 1.41

Static Load Rating

 N/A 30000 lbf134000 N134.00 kN

Dynamic Load Rating

 N/A 20300 lbf90500 N90.50 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 2.4400 in61.976 mm

D

 N/A 4.0000 in101.600 mm

Wo

 N/A 0.7813 in19.845 mm

Wi

 N/A 0.9688 in24.608 mm

W

 N/A 1.0000 in25.400 mm

r

 N/A 0.1300 in3.300 mm

R

 N/A 0.08 in2.0 mm

a (Effective Load Center)

 N/A -0.0700 in-1.700 mm

U

 N/A 2.83 in72.0 mm

V

 N/A 2.68 in68.0 mm

X

 N/A 3.82 in97.0 mm

Z

 N/A 3.54 in90.0 mm