• 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 :NU3868M
Old :
Boundary dimensions(mm)
d :340
D :420
B :60
r 1.2min :2.1
r3、4min :2.1
Fw :362
Ew :
Basic load ratings(kN)
Cr :515
Cor :1250
Limiting speed(rpm)
Grease :1200
Oil :1500
Abutment and fillet dimensions(mm)
da min :
db min :359
Da max :400
Db max :
ra max :2
rb max :2
Weight (kg)
Refer :18.6