• 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 :N421M
Old :2421
Boundary dimensions(mm)
d :105
D :260
B :60
r 1.2min :4
r3、4min :4
Fw :
Ew :220.5
Basic load ratings(kN)
Cr :550
Cor :700
Limiting speed(rpm)
Grease :2200
Oil :2800
Abutment and fillet dimensions(mm)
da min :121
db min :
Da max :
Db max :224
ra max :3
rb max :3
Weight (kg)
Refer :17.2