Bearing BK4020 (INA)

Drawn cup needle roller bearings BK4020

Bearing number : BK4020

Size (mm) : 40x47x20

Brand : INA

Bore Diameter (mm) : 40

Outer Diameter (mm) : 47

Width (mm) : 20

Bearing dimensions and specification in INA catalogue:

F_w - 40 mm

D - 47 mm

C - 20 mm / Tolerance: -0,3

C_{t min} - 17,3 mm

r_min - 0,8 mm

m - 62 g / Weight

C_r - 25500 N / Dynamic load rating (radial)

C_0r - 52000 N / Static load rating (radial)

C_ur - 6800 N / Fatigue limit load, radial

n_G - 6600 1/min / Limiting speed

n_B - 4750 1/min / Reference speed

- LR35X40X20,5 / Suitable inner ring

- IR35X40X20,5 / Suitable inner ring

DIN 618-1/ISO 3245

Designation

Bore Dia, mm

Outer Dia, mm: