• 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 :NU20/500
Old :20321/500
Boundary dimensions(mm)
d :500
D :720
B :128
r 1.2min :6
r3、4min :6
Fw :553
Ew :
Basic load ratings(kN)
Cr :2720
Cor :5600
Limiting speed(rpm)
Grease :630
Oil :750
Abutment and fillet dimensions(mm)
da min :
db min :537
Da max :680
Db max :
ra max :5
rb max :5
Weight (kg)
Refer :180