TIMKEN 644/632 bearing

71.438x136.525x41.275

I have heard Timken is better then National bearing that failed for me after 2 years so I gave it a try. This bearing is made in Mexico and I was hoping it was going to be made in the USA but only time will tell now if this bearing will hold up....



Tapered roller bearings 644/632

Bearing number : 644/632

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

Brand : Timken

Bore Diameter (mm) : 71,438

Outer Diameter (mm) : 136,525

Width (mm) : 41,275

Bearing dimensions and specification in Timken catalogue:

d - 71,438 mm

D - 136,525 mm

T - 41,275 mm

B - 41,275 mm

C - 31,75 mm

R - 3,6 mm

r - 3,3 mm

a - -11,2 mm

Da - 125 mm

db - 87 mm

da - 81 mm

Db - 118 mm

Aa - 4,2 mm

Ab - 1,9 mm

Weight - 2,57 Kg

Basic static load rating (C0) - 298 kN

Factor (G1) - 106,4

Factor (G2) - 21

Factor (Cg) - 0,0205

Factor (K) - 1,61

Basic dynamic load rating (C90) - 55,9

Basic dynamic load rating (Ca90) - 34,7

Basic dynamic load rating (C1) - 216 kN

Calculation factor (e) - 0,36

Calculation factor (Y) - 1,66

Bearing 644/632

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