Item # 45287/45220, 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
Limiting Speed - Grease	N/A 3500 RPM
Style	N/A Cone & Cup
Precision Rating	N/A Not Available
Cone Number	N/A 45287
Cup Number	N/A 45220
Configuration	N/A One
Lubrication	N/A w/o Oil Hole
e (Axial Load Factor)	N/A 0.33
Y2 (Axial Load Factor)	N/A 1.80
Static Load Rating	N/A 42264 lbf188000 N188.00 kN
Dynamic Load Rating	N/A 31249 lbf139000 N139.00 kN
Enclosure	N/A Open
Weight	N/A 2.558 lb1.160 kg
Operating Temperature Range	N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

Loading zoom Open Image Tapered Roller Set - Inch Series and J Series - Dimensions
B	N/A 2.1250 in53.975 mm
D	N/A 4.1250 in104.775 mm
Wo	N/A 0.9375 in23.813 mm
Wi	N/A 1.2188 in30.958 mm
W	N/A 1.1875 in30.162 mm
r	N/A 0.1300 in3.300 mm
R	N/A 0.03 in0.8 mm
a (Effective Load Center)	N/A -0.3200 in-8.100 mm
U	N/A 2.44 in62.0 mm
V	N/A 2.44 in62.0 mm
X	N/A 3.90 in99.0 mm
Z	N/A 3.66 in93.0 mm