Bearing 644/632 (NSK)

Tapered roller bearings 644/632

Bearing number : 644/632

Size (mm) : 71.438x136.525x41.275

Brand : NSK

Bore Diameter (mm) : 71,438

Outer Diameter (mm) : 136,525

Width (mm) : 41,275

Bearing dimensions and specification in NSK catalogue:

d - 71,438 mm

D - 136,525 mm

T - 41,275 mm

B - 41,275 mm

C - 31,75 mm

ra1 max. - 3,3 mm

a - 29,9 mm

r min. - 3,5 mm

r1 min. - 3,3 mm

Da - 118 mm

db - 81 mm

ra max. - 3,5 mm

da - 87 mm

Db - 125 mm

Weight - 2,54 Kg

Basic dynamic load rating (C) - 195 kN

Basic static load rating (C0) - 263 kN

(Grease) Lubrication Speed - 2800 r/min

(Oil) Lubrication Speed - 3800 r/min

Calculation factor (e) - 0,36

Calculation factor (Y0) - 0,91

Calculation factor (Y1) - 1,7

Designation

Bore Dia, mm

Outer Dia, mm: