Full definition
The pulley in a belt drive system connected to the load (machine being driven), receiving power from the belt rather than delivering it. In a speed-reduction drive (the most common configuration), the driven pulley is the larger of the two pulleys, rotating at a lower RPM than the driver while delivering proportionally higher torque. The driven pulley diameter, combined with the driver diameter, determines the drive ratio: i = D_driven/D_driver. Its wrap angle is always greater than or equal to the driver pulley wrap angle (in a two-pulley drive), so it is rarely the limiting factor for traction capacity. For belt length calculation and drive design, the driven pulley pitch diameter (not OD) must be used. Typical driven machines: pumps, fans, compressors, conveyors, crushers, mixers. Per ISO 1081 terminology.