HK4020 bearing
Bearing Designation
Current Code :HK4020
Original Code :67941/40
Shaft Diameter（mm） :40
Weight(Kg) :51.8
Boundary Dimensions(mm)
Fw :40
D :47
C :20
Basic Load Rating(N)
Dynamic :25500
Static :52000
Limiting Speed(rpm)
Oil :6300
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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