Bearing 621/612 (NACHI)

Tapered roller bearings 621/612

Bearing number : 621/612

Size (mm) : 120.650x53.975x41.275

Brand : NACHI

Bore Diameter (mm) : 120.650

Outer Diameter (mm) : 53.975

Width (mm) : 41.275

Bearing dimensions and specification in NACHI catalogue:

d - 53.975 mm

D - 120.650 mm

T - 41.275 mm

B - 41.275 mm

C - 31.750 mm

a - 26.9 mm

r1 min. - 3.5 mm

r2 min. - 3.3 mm

Weight - 2,225 Kg

Basic dynamic load rating (C) - 163000 kN

Basic static load rating (C0) - 198000 kN

(Grease) Lubrication Speed - 3300 r/min

(Oil) Lubrication Speed - 4400 r/min

Calculation factor (e) - 0.31

Calculation factor (Y0) - 1.05

Calculation factor (Y1) - 1.91

Designation

Bore Dia, mm

Outer Dia, mm: