• أسطواني أسطواني
  • أسطواني أسطواني

Description

Cylindrical roller bearings are available in a wide range of designs, series, variants and sizes. The main design differences are the number of roller rows and the inner/outer ring flanges as well as cage designs and materials.

The bearings can meet the challenges of applications faced with heavy radial loads and high speeds. Accommodating axial displacement (except for bearings with flanges on both the inner and outer rings), they offer high stiffness, low friction and long service life.



Dimension and Parameters

Bearing NO.
New :NJ248M
Old :42248
Boundary dimensions(mm)
d :240
D :440
B :72
r 1.2min :4
r3、4min :4
Fw :295
Ew :
Basic load ratings(kN)
Cr :935
Cor :1340
Limiting speed(rpm)
Grease :1300
Oil :1600
Abutment and fillet dimensions(mm)
da min :
db min :262
Da max :415
Db max :
ra max :3
rb max :3
Weight (kg)
Refer :51