GREENLEE 660QA Tray sheave quick-adjust cast aluminum 21-1/4x9"

Quick adjust sheave tray. Attaches to all varied size tray rung spacing. 7x faster setup and disconnect. No loose pieces. Adjustable slide leg that can be extended to fit on tray rung spaces up to 20 inch. Set screw handle to easily lock and unlock adjustable sliding leg. Edge hook feet to grab tray more securely. Steel frame easily attaches to cable tray up to 2 inch thick. Cast aluminium sheave with robust shaft and bronze bushings. Easily handle forces of up to 100 lbs. Designed and assembled in USA. Application: use to assist pulling cables along non basket-style cable trays. Designed to aid loads during straight runs on the tray.