Crankshafts

Crankshafts

Golf Car Catalog offers crankshafts for a variety of EZGO, Club Car, Yamaha, Columbia, Harley-Davidson, as well as many other golf cart brands and models. 

Crankshafts are the backbone of many engines, especially those used in the golf cart industry.  The crankshaft is located in the bottom end (crankcase) of your golf cart engine.  It is suspended by bearings on either side (flywheel and clutch sides, respectively) in which it rotates.  The piston of your golf cart engine is connected to the crankshaft via a connecting rod.  The lower pivot point (or crankshaft journal) on which the connecting rod is attached is generally off center to allow for the piston's vertical movement as combustion occurs in the top end. In multi-cylinder engines, there are multiple crankshaft journals where multiple connecting rods attach. For a two cylinder engine, the journals are offset at 180 degrees. This allows for one piston to be in the down position while the other piston/cylinder is firing. Once the cylinder fires, it forces the piston downward and the crankshaft rotates.

In golf cart applications, the crankshaft protrudes from each side of the crankcase through a seal to prevent oil leakage. On one side, a drive or primary centrifugal clutch is attached, and belt connects it to the driven clutch on the differential to transfer the power to the wheels.  On the other side, the crankshaft it typically connected to a flywheel, which is basically a cooling fan to prevent overheating.

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