TIMKEN 644/632 bearing71.438x136.525x41.275
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
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