The BCHM20 is a round, stainless steel screw-type ball roller or ball transfer unit, featuring a design optimized for upward ball movement and load distribution via small supporting steel balls. Model BCHM20 Brand ZH Material Chrome Steel precision P0 P6 P5 P4 Product Description BCHM20 is a round-head bolt type ball roller (ball transfer unit). It is not a traditional rotary bearing, but a universal conveyor roller used for material handling, mold changing platforms, or
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