... wear and corrosion resistance, no sticking and no damage to belt, impact strength and light weight. The shell, bearing house and ... house are made of UHMWPE which has a very low surface energy and are anti-adhesion, so it is repulsive to ... as grease retainer4,Light weight and energy saving.5,Redused belt damage,Noise reduction,Corrosion resistance,No sticking. conveyor ...