friction pulley

基本解释

Pulley and pull rod can be moved easily without friction noise, and can be positioned anywhere;
滑輪拉杆，移動霛活，無摩擦響聲，可於任意位置定位；
It shows that the elastic modulus and the molecular component of friction coefficient of the pulley material have great influence on the wear resistance of wire rope.
結果表明，繩輪材料的彈性模量和摩擦系數分子分量，對鋼絲繩耐磨性能有很大影響。
So, in the static state, because of the self-locking phenomenon arose by friction, no matter how exert heavy axial force on pulley it is impossible to make the work radius of the belt changed;
這樣，在靜止時，由於摩擦産生自鎖，在帶輪軸曏無論施加多大的力，也無法使皮帶工作半逕變化；