A woodruff key to suit the DLE 111 twin — a large two-stroke petrol engine for big 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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