The TRS Twin profile rail stage with enclosed design is built from the ground up to be highly rigid and very accurate. Available in 100 & 165 sizes, load up to 6.0 kN (1,349 lbf). High Positional Accuracy • Screw Accuracy • Roller Nut ± 0.0102mm/300mm ± 0.0004"/ft. • Metric Ball Nut ± 0.051mm/300mm ± 0.002"/ft.