These are complete solution to eliminate gun metal bush or ball bush of aluminium/gun metal. These simple ball bushing bearings replacement improves performance of present dies and reduces tool room costs. Each ds ball bushing bearing has number of toe clamps and socket head screws for immediate interchange. Extremely rugged construction, additional load, capacity and travel life. Ball bushing bearings allow closer fits and maintain alignment, which increases die life and permits, longer uninterrupted runs. Free rolling ball bearings anable the toolmaker to actually feel in the fit of mating parts. This saves more time and makes better dies.