Inch Series

LM742748/LM742710

  • 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. :LM742748/LM742710
Boundary dimensions(mm)
d :215.9
D :285.75
T :46.038
B :46.038
C :34.925
r 1.2min :3.6
r 3.4min :3.2
Basic load ratings(kN)
Cr :356
Cor :781
Limiting speed(rpm)
Grease :1000
Oil :1500
Application point
a :60.7
Abutment and fillet dimensions(mm)
da max :229
db min :231
Da max :265
Db min :276
ra max :3.6
rb max :3.2
Value
e :0.48
Y :1.25
Y0 :0.69
Weight (kg)
Refer :7.55