A woodruff key to suit the DLE 20RA single — a small-displacement two-stroke petrol engine for sport-scale models.
On this engine the component is the Woodruff key, which keys the hub or drive to the crankshaft so torque is transmitted positively.
Why this part matters: a sheared key is the usual result of a prop strike, and a worn key lets the drive fret on the shaft.
Fitting note: Check the keyway in both parts for fretting before fitting a new key.
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