Single Row Cylindrical Roller Bearings

NU20/630

The cylindrical roller bearing has a linear contact between the rollers and the raceway, therefore, it has a high radial load bearing capacity, which enables this bearing to withstand heavy loads and impact loads well. In addition, since the inner and outer rings can be separated, it is easy to disassemble and assemble.
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  • Single Row Cylindrical Roller Bearings
  • Single Row Cylindrical Roller Bearings

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
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