带传动的特点 Characteristics 由于带传动是通过中间挠性件(传动带),依靠带与带轮 间的摩擦力工作的,所以带传动具有以下特点: Disadvantages: Limited power transmission capacity Limited transmission ratio per pulley step In some cases, synchronous power transmission impossible In some cases, large axle and contact forces required带传动的特点(Characteristics) 由于带传动是通过中间挠性件（传动带），依靠带与带轮 间的摩擦力工作的，所以带传动具有以下特点： Disadvantages: • Limited power transmission capacity • Limited transmission ratio per pulley step • In some cases, synchronous power transmission impossible (slip) • In some cases, large axle and contact forces required