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NK Series

NK17/20 bearing

  • NK Series
  • NK Series
Bearing Designation
Current Code :NK17/20
Original Code :RNAl72520
Shaft Diameter(mm) :17
Weight(Kg) :30
Boundary Dimensions(mm)
Fw :17
D :25
C :20
Basic Load Rating(N)
Dynamic :15000
Static :20000
Limiting Speed(rpm)
Oil :23000

Needle roller bearing is a special type roller bearing which uses long, thin cylindrical rollers resembling needles. Compared to ball bearings and ordinary roller bearings, needle bearings have a greater surface area in contact with the races, so they can support a great load. They are widely used in automobile components such as rocker arm pivots, pumps, compressors and transmissions.