Item # 320/28XX1, Tapered Roller Set - Metric 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 - Oil	N/A 9700 RPM
Limiting Speed - Grease	N/A 7300 RPM
Style	N/A Cone & Cup
Precision Rating	N/A Class 4
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 1.39
Y0 (Axial Load Factor)	N/A 0.77
Static Load Rating	N/A 9100 lbf40500 N40.50 kN
Dynamic Load Rating	N/A 7400 lbf33000 N33.00 kN
Enclosure	N/A Open
Weight	N/A 0.322 lb0.146 kg
Operating Temperature Range	N/A -40 to 250 ºF-40 to 120 ºC

Dimensional Specifications

Loading zoom Tapered Roller Set - Metric Series - Dimensions
d	N/A 1.1024 in28.000 mm
D	N/A 2.0472 in52.000 mm
C	N/A 0.4724 in12.000 mm
B	N/A 0.6299 in16.000 mm
a (Effective Load Center)	N/A -0.1378 in-3.500 mm
T	N/A 0.6299 in16.000 mm
r	N/A 0.0400 in1.000 mm
R	N/A 0.04 in1.0 mm
da	N/A 1.32 in33.5 mm
db	N/A 1.30 in33.0 mm
Da	N/A 1.83 in46.5 mm
Da min	N/A 1.77 in45.0 mm
Db	N/A 1.93 in49.0 mm