... professional produce ball screw support . We could supply BK-BF,FK-FF,EK-EF series . Angle contact ball is ... . Feather of ball screw supportBrand nameHSK, SYK ,Well MotionModleBK-BF,FK-FF,EK-EFDiamaterDiamater:16mm-80mmAccurancyGrade C3,C5,C7MaterialMedium-carbon ... LC at sightFob portShenzhen port,Ningbo portBall screw support BK-BF seriesBK-BF10BK-BF12BK-BF15BK-BF20BK-BF25BK-BF30BK-BF35BK-BF40 Ball ...