Ultra high molecular weight polyethylene roller has physical and chemical properties which are high wear resistance, low friction coefficient, not easy to wear leather strap. It also has the fine self lubrication and not easy to card to die in the bad conditions, antistatic, flame retardant, aging resistance, corrosion resistance. It can withstand repeated impact, vibration, mechanical performance is excellent, light weight, easy installation, no maintenance, low noise(3-7DB), smooth operation. The temperature of using keep in -40°Cto-85°C.