Support unit such as FK type bearing into the proper amount of lithium soap grease, with special sealing gasket for seal, can direct installation, use for a long time. The blackening process, high precision support. High rigidity, high precision and stable performance of rotation. Mounting method 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 bolts. (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 Model: FK10/FF10 Material:Carbon steel colour:black Package Contents: 4 x FK Bearing block 4 x FF Bearing block Only the above package content, other products are not included. Note: Light reflection 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.