Phidgets Linear Rail Linear rail 16mm steel shaft 300mm length C45 steel and aluminum base
Precision chrome plated, case hardened linear shaft, mounted to an aluminum rail which prevents flexing under load.
This 16mm steel shaft is made of hardened C45 steel and an aluminum base. In conjunction with an appropriate bearing and supports it would make for an ideal linear slide or track to guide anything from a camera to an xy table.