Item # 38800/38820, Tapered Roller Set - Inch Series and J Series On NTN Bearing Corp. of America

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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