... on. Idler dia:50,60,63.5,76,89,102,108,114,127,133,159, ... ,Idler material.1.Stable running,good quality.free maintenance.2.Small vibrating and long lifespan ... friction coefficient, waterproof, effective sealing systemHigh accurate steel pipes ensure the rollers with low vibration ... qualityExcellent lubricating propertyWe can support series of conveyor idler(roller)/pulley/bearing housing ! We will quote ...