Amacoil, Aston, PA has expanded its line of Model RS rolling ring linear drive nuts with the RS8 drive, which runs on an 8mm diameter case hardened and ground smooth shaft, and supports space-saving machine design trends toward smaller components. Currently being used in small axis optical metrology machines, the RS8 nut is the smallest drive in the RS line, yet provides the same axial thrust (100 Newtons) as the next larger size drive unit.

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