SFU 2005-4-510 (EM-BKBF15)WERB SFU 2005 4 510 CNC Ball Screw Set with EM BKBF15 Supports, 20 mm, 5 mm Lead, 510 mm Length The WERB SFU 2005 4 510 CNC ball screw set with EM BKBF15 supports is a compact 20 mm, 5 mm lead assembly for axes that use smaller BKBF15 bearing blocks. It includes the precision ball screw, SFU 2005 4 ball nut, and EM BKBF15 fixed and floating supports, giving a space saving drive solution for CNC and automation projects in Pakistan. Abdul Traders keeps