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Clutch gear bearing

This Torrington needle bearing is used from 1952 to 1984.


The clutch gear has this needle bearing pressed into the gear end behind a pressed-in thrust bearing.

The industrial part number is B-1212.
Part Number B-1212
Bore diameter 3/4 inches
Outside diameter 1 inches
Overall width 3/4 inches
Max speed 5600 RPM
Static load 8710 pounds
Dynamic load 4930 pounds
Spec ASTM F2162
Sportster_MainshaftThe Iron Sportster mainshaft is a triumph of engineering. The general design has sustained from 1952 to 1984. There were teething problems in the early K-model, but they were all cured by 1957 with the introduction of the Sportster.

This Torrington needle bearing is pressed into the clutch gear. A thrust washer gets pressed in over it.
Bottom of first column This is the end.