NK30/20 bearing
Bearing Designation
Current Code :NK30/20
Original Code :644805
Shaft Diameter（mm） :30
Weight(Kg) :57.9
Boundary Dimensions(mm)
Fw :30
D :40
C :20
Basic Load Rating(N)
Dynamic :20600
Static :32000
Limiting Speed(rpm)
Oil :15000
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.
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