Item # 389/383A, 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 Through Hardened Steel
Style	N/A Cone & Cup
Precision Rating	N/A Class 4
Cone Number	N/A 389
Cup Number	N/A 383A
Configuration	N/A One
Lubrication	N/A w/o Oil Hole
e (Axial Load Factor)	N/A 0.35
Y2 (Axial Load Factor)	N/A 1.69
Static Load Rating	N/A 2360 lbf10500 N10.50 kN
Dynamic Load Rating	N/A 18500 lbf82500 N82.50 kN
Enclosure	N/A Open
Operating Temperature Range	N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

Loading zoom Tapered Roller Set - Inch Series and J Series - Dimensions
B	N/A 2.1880 in55.575 mm
D	N/A 3.9370 in100.000 mm
Wo	N/A 0.7018 in17.826 mm
Wi	N/A 0.8640 in21.946 mm
W	N/A 0.8268 in21.000 mm
r	N/A 0.0800 in2.000 mm
R	N/A 0.09 in2.3 mm
a (Effective Load Center)	N/A -0.1200 in-3.000 mm
U	N/A 2.56 in65.0 mm
V	N/A 2.40 in61.0 mm
X	N/A 3.66 in93.0 mm
Z	N/A 3.50 in89.0 mm