Our 150mm Rebound Rubber Wheel Richmond Castor - S6632 is in our extensive series of industrial castors. The wheel runs on Ball Bearings and the diameter of the wheel is 150mm (6"). This heavy duty castor has a load capacity of 225kg. This castors frame is a swivel frame which allows the castor to swivel or rotate 360°. Rebound rubber wheels are non marking however they have a higher rolling resistance than some other wheel types.