Question of the Day

Under normal conditions, it does not affect the transmission ratio, but in the case of V-belts, it might have an impact on slippage?

A idler gear is a gear that serves as a medium for transmitting motion between two driving gears that do not come into contact with each other; it meshes with both of these gears in order to change the rotation direction of the driven gear so that it matches that of the driving gear. The main functions of a idler wheel are to change the direction of the driven wheel, increase the transmission distance, and adjust the pressure angle. A idler is a gear set component that serves a transitional role; it does not change the transmission relationship, but rather exists to distribute forces more reasonably within the gear set or to meet the layout requirements of the entire transmission system. The wheelbase can be increased using idler wheels; the number of teeth on them has no effect on the transmission ratio, but it does affect the steering of the rear wheels.