You have a rolled ballscrew there, if that is the only nut, no lower one, then you do not have the best kind of pre-load, the cheaper version is slightly larger balls but this only works up to a point, it cannot be adjusted or is only good for lower pre-load values.
The orange caps appear to be ball-loading apertures.
In my experience, rolled ball screw without double nut, always seem to have some backlash present.
If you see the screw turn and no up or down movement then the BL is in the nut.
Al.
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CNC, Mechatronics Integration and Machine Design.
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E. |