NACHI 644/633 bearing

Bearing 644/633

NACHI 644/633 bearing, Size: 130.175x71.438x41.275. NACHI 644/633 are used in a wide variety of applications, suitable for high speeds and are robust in operation, and need little maintenance.

Tapered roller bearings 644/633

Bearing number : 644/633

Size (mm) : 130.175x71.438x41.275

Brand : NACHI

Bore Diameter (mm) : 130.175

Outer Diameter (mm) : 71.438

Width (mm) : 41.275

Bearing dimensions and specification in NACHI catalogue:

d - 71.438 mm

D - 130.175 mm

T - 41.275 mm

B - 41.275 mm

C - 31.750 mm

a - 11.2 mm

r1 min. - 3.5 mm

r2 min. - 3.3 mm

Weight - 2,55 Kg

Basic dynamic load rating (C) - 151000 kN

Basic static load rating (C0) - 229000 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

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