Standard F-lever prolongs Uhing linear drive's life by enabling it to slide with attached load anywhere along shaft without jogging motor on and off for head placement. Movement while system is stopped reduces wear on motor, components, and rolling ring bearings. For realignment in spooling applications, lever is turned to release compression on bearing assembly, allowing easy slide across shaft surface. Over 20 sizes are available to supply axial thrust from 7-800 lb. Device suits converting machinery and packaging equipment requiring backlash-free coating, spraying, slitting, or indexing.