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English to Japanese translations [PRO] Tech/Engineering - Automotive / Cars & Trucks
English term or phrase:backing pad
The counterweight is a half-moon shaped piece of metal attached to the rotating shaft of the tool. This smooths out the random orbit action by providing a counter balance to the elliptical orbit of the rotating ***backing pad***. If you change the pad size you must also change the counterweight or suffer unnecessary vibration and possible damage to the tool.