• Цилиндрический роликовый подшипник
  • Цилиндрический роликовый подшипник

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 :NU30/670
Old :30321/670
Boundary dimensions(mm)
d :670
D :980
B :230
r 1.2min :7.5
r3、4min :7.5
Fw :744
Ew :914
Basic load ratings(kN)
Cr :6420
Cor :12100
Limiting speed(rpm)
Grease :430
Oil :500
Abutment and fillet dimensions(mm)
da min :
db min :703
Da max :947
Db max :
ra max :6
rb max :6
Weight (kg)
Refer :600