... as customer's require Product Name: Aluminum Die Cast bearing holder for roller shutter;Material: Aluminum alloy such as A380, A360 ... etc;Surface treatment: sandblasting, polishing, painting etcApplication: It use to holder bearing for AC tubular motor of roller shutter;Our Roller ... Shutter Accessories including:1). Bearing Cover, Bearing Holder;2).End Cap for tubular motor;3). Side frame;4 ...