| 摘要 |
A gearwheel, for preventing clattering or rattling noises when in engagement with a further gearwheel 7, comprises a toothed gear 1 and a magnetic toothed disc 2. The disc is magnetically attracted to, and has the same diameter as, the gear 1, but has a different number of teeth (for example, one tooth less). The disc may be of plastics with magnetic segments 11. |
