• 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 :NJ2248M
Old :42548
Boundary dimensions(mm)
d :240
D :440
B :120
r 1.2min :4
r3、4min :4
Fw :295
Ew :
Basic load ratings(kN)
Cr :1440
Cor :2320
Limiting speed(rpm)
Grease :1000
Oil :1300
Abutment and fillet dimensions(mm)
da min :
db min :262
Da max :415
Db max :
ra max :3
rb max :3
Weight (kg)
Refer :86.7