• Cylindrical Roller Bearing
  • Cylindrical Roller Bearing

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 :NU20/630
Old :20321/630
Boundary dimensions(mm)
d :630
D :920
B :170
r 1.2min :7.5
r3、4min :7.5
Fw :699
Ew :
Basic load ratings(kN)
Cr :4500
Cor :9000
Limiting speed(rpm)
Grease :480
Oil :560
Abutment and fillet dimensions(mm)
da min :
db min :666
Da max :887
Db max :
ra max :6
rb max :6
Weight (kg)
Refer :285