Machine element or mechanism – Elements – Cranks and wrist pins
Patent
1999-02-24
2000-12-26
Green, Mary Ann
Machine element or mechanism
Elements
Cranks and wrist pins
74597, 1231974, 384457, F16C 1102
Patent
active
061641596
ABSTRACT:
A motorcycle flywheel assembly which includes a fork rod and a blade rod are positioned on a common crank pin. The crank pin has threaded nut bearing end portions, non-tapered cylindrical portions adjacent the nut bearing end portion, and a central bearing surface portion. A shoulder is defined where the cylindrical portion steps down from the central bearing surface portion. The cylindrical portions of the crank pin are positioned in crank pin receiving openings of flywheels in interference fit relation with the shoulder defined where the cylindrical portion steps down from the central bearing surface portion engaging first face of each flywheel, thereby precluding flexing movement of the crank pin.
REFERENCES:
patent: 5894763 (1999-04-01), Peters
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