- Rolled ballscrew, precision class 7 - Max axial backlash : 0.05mm - Supplied with the nut flange to the left - Machined to be compatible with BEK bearings (Fig A) and BEF bearings (Fig B). No keyway. - Screw manufactured from steel Options - Shorter lengths available on request - Nut with flange on right Info - This part number includes 1 ballscrew and 1 nut