Inch Series

545112/545139

  • Inch Series
  • Inch Series

Description

Tapered roller bearings feature a cup and cone assembly. The cup is comprised of the outer ring and the cone assembly consists of inner ring, rollers, and cage. This bearing construction accommodates combined loads and provides low friction during operation. By adjusting one single row tapered roller bearing against a second tapered roller bearing and applying a preload, a rigid bearing application can be achieved.

Dimension and Parameters

Bearing NO. :545112/545139
Boundary dimensions(mm)
d :285.75
D :354.013
T :33.338
B :31.75
C :22.225
r 1.2min :3.6
r 3.4min :3.2
Basic load ratings(kN)
Cr :240
Cor :537
Limiting speed(rpm)
Grease :850
Oil :1200
Application point
a :65.8
Abutment and fillet dimensions(mm)
da max :299
db min :308
Da max :337
Db min :344
ra max :3.6
rb max :3.2
Value
e :0.49
Y :1.23
Y0 :0.68
Weight (kg)
Refer :6.3