September 5 2002 at 5:36 PM No score for this post
(no login) from IP address 207.154.74.167
I'd like further details of a device sometimes built into engines to reduce vibration. I beieve it spins at 2 x shaft speed. Its vibration cancels some of the engine-produced vibration. This permits the engine (of a motorcyle, for example) to be hard mounted to the vehicle frame.
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