| 摘要 |
A method and apparatus for determining the amount and location of corrective weight required to compensate unbalance in a vehicle wheel and tire without removing the wheel and/or tire from the vehicle. The wheel and tire are maintained out of contact with the ground and are turned at conventional highway speeds. An index tape is applied to the tire rim. Two separate spinnings of the wheel are required: one with a known trial weight affixed to the wheel rim, and one with the wheel and tire in their normal condition. Two meters are provided which are calibrated to indicate the amount of unbalance compensating weight required at the wheel rim and the angular position of the compensating weight relative to the index tape. The method and apparatus are applicable to other rotatable bodies.
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