Our side-plate mouting jacking castors are ideal for raising or lowering applications where the load is higher and requires a more robust and heavier duty jacking assmbley to function. Size ranges from 125mm - 200mm in diameter. This type of jack will allow an extension of 76mm, to suit an 12mm hole. Please call for details on other wheel choices, ranging from, rubber, polyurethane, cast iron, nylon etc. Prices below relate to the wheel being aluminium centre, with a bonded polyurethane tyre. Also complete with precision ball bearings.