Support unit such as FK type into the proper amount of lithium soap grease, with sealing gasket for seal, can direct installation, use for a long time. The surface blackening process, high precision support. High rigidity, high precision and stable performance of rotation. Mounting of ball screw support: (1) fixed to the threaded rod on the fixed side. (2) the fixed side inserted, tightening the lock nut, fixed with the cushion block and the inner six bolts. (3) the supporting side is fixed on the threaded rod shaft with a stop ring and is loaded into the block. Product name: FK+FF Ball Screw End Support Color: Black Model: FK12/FF12 Material: Carbon steel Package Contents: 1 * FK block 1 * FF block Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.