SF 20x1000WERB SF 20x1000 Linear Round Shaft 20 mm x 1000 mm Hardened Shaft for Linear Motion The WERB SF 20x1000 linear round shaft is a 20 mm diameter, 1000 mm long hardened and ground shaft for light and medium duty linear motion axes. It is designed to run with linear ball bearings and shaft supports on CNC and automation equipment across Pakistan. As the trusted WERB distributor, Abdul Traders keeps SF 20x1000 shafts available with competitive pricing. Key