... wear and corrosion resistance, no sticking and no damage to belt, impact strength and light weight. The shell, bearing ... for testing are available.The more relaxed payment termsDetailed conveyor roller idler feature:1,Abrasion resistance and long life. 2,Impact ... retainer4,Light weight and energy saving.5,Redused belt damage,Noise reduction,Corrosion resistance,No sticking. conveyor belt guide roller