Support unit such as FK type bearing 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 angle . (3) the supporting side bearing is fixed on the threaded rod shaft with a stop ring and is loaded into the bearing block. Product name: FK+FF Ball Screw End Support Color: Black Model: FK12/FF12 Material: Carbon steel Package Contents: 1 * FK Bearing block 1 * FF Bearing block Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.