... produce ball screw support . We could supply BK-BF,FK-FF,EK-EF series . Angle contact ball is used ... Feather of ball screw supportBrand nameHSK, SYK ,Well MotionModleBK-BF,FK-FF,EK-EFDiamaterDiamater:16mm-80mmAccurancyGrade C3,C5,C7MaterialMedium-carbon steelPerformanceLong ... BF12BK-BF15BK-BF20BK-BF25BK-BF30BK-BF35BK-BF40 Ball screw support FK-FF seriesFK-FF10FK-FF12FK-FF15FK-FF20FK-FF25FK-FF30 Ball ...