SBR 35-4000 WERB | Linear Motion Guide RailWERB SBR 35 4000 Supported Linear Round Shaft, 35 mm Diameter, 4000 mm Length The WERB SBR 35 4000 supported linear round shaft is a heavy duty SBR rail with 35 mm diameter shaft mounted on an aluminium support base, supplied in 4000 mm length. It is designed for long travel, high load CNC and automation axes that need rigid guidance and easy mounting. As the authorised WERB linear motion supplier in Pakistan, Abdul Traders provides SBR 35 4000 rails