SF 13x1000WERB SF 13x1000 Linear Round Shaft 13 mm x 1000 mm Hardened Shaft for Linear Motion The WERB SF 13x1000 linear round shaft is a 13 mm diameter, 1000 mm long hardened and ground shaft for light duty linear motion axes. It is intended for use with linear ball bearings and shaft supports on compact CNC and automation projects in Pakistan. As the trusted WERB distributor, Abdul Traders supplies SF 13x1000 shafts with ready stock and fair pricing. Key