100mm Equipment Forged Nylon Wheel equipped into an additional solid Fabricated Top rated Plate Swivel Castor that has a double thrust bearing from the swivel head to optimise the load potential. The correcting bolt spacings are the ecu Conventional sizing of 80x60mm. The load potential of the castor is 900kg http://judahrsqol.atualblog.com/16798941/the-definitive-guide-to-castors