A turntable idler wheel is a mechanical component, typically with a rubber rim, that transfers rotational motion from the motor's drive shaft to the underside of the platter through friction. This mechanism, known as idler-wheel drive, was common in turntables until the 1970s and is one of the three primary types of drive systems (along with belt drive and direct drive). BSR C-142 Electronics repair, restoration, and DIY tutorials. Find step-by-step guides to fix and restore your electronic devi