FK15 n FF15, FK20 n FF20, FK25 n FF25, FK30 n FF30
Support units of ball screw can be divided into fixed side and floated side. Fixed side support units are available in three series BK, FK and EK, floated side are correspondingly referred in three types BF, FF and EF.
There are applicable ball screw shaft outer diameter for sizes of support unit. Taking in example, BK15, FK15 and EK15 are for 2004, 2005, 2010 or 2020 Ball Screws which is 20mm diameter and can be machined to fix the 15mm ball bearing of the support unit.