Linear and curved steered together with all the roller and ball bearings, with the hardened raceway, higher loading capability, self-alignment and effective of in a cluttered environment. rack rails is the unique self-supporting and self-aligning railing in extrud aluminum with a deep hard anodized surface treatment method that delivers exceptionally higher performance and loading potential, without a lubrication and maintenance demanded, total reliability even in surroundings together with visually silent functioning. It’s readily available with v-shaped pliers or cylindrical rollers, either coated in a plastic compound and could use as being a linear rail or even actuator. A simple system consisting of a steel linear rail s with induction hardened raceways and superior precision radial ballbearing sliders hardened steels. The linear directed are affordable and easy to installed on all kinds of surfaces, for example non-machined handles.