Scew: SFU 1605 ballscrew, diamater is 16mm,auucracy is up to 0.03mm.
Guide rail: 20mm square linear rail, hight-speed silent, running smoothly.
Using high-quality aluminum alloy material, beautiful, rust-roof, wear resistant and durable. The latest batch of motor mounts on the shelves have been updated, and the one you receive may also be the latest batch of heavy duty linear stage.