Item # 28880/28820E1, 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 4
Cone Number	N/A 28880
Cup Number	N/A 28820E1
Configuration	N/A One
Lubrication	N/A w/o Oil Hole
e (Axial Load Factor)	N/A 0.32
Y2 (Axial Load Factor)	N/A 1.85
Static Load Rating	N/A 80500 lbf358000 N358.00 kN
Dynamic Load Rating	N/A 33000 lbf147000 N147.00 kN
Enclosure	N/A Open
Weight	N/A 7.253 lb3.290 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 9.7500 in247.650 mm
D	N/A 12.0000 in304.800 mm
Wo	N/A 0.6250 in15.875 mm
Wi	N/A 0.8750 in22.225 mm
W	N/A 0.8750 in22.225 mm
r	N/A 0.0600 in1.500 mm
R	N/A 0.06 in1.5 mm
a (Effective Load Center)	N/A 0.6800 in17.300 mm