A bearing wheel (50) has a wheel centre (53) and bearings (14, 16) housed in the wheel centre which are adapted to allow the wheel centre to spin about an axle (18) around which the bearings are mounted. There is an outer surface (20) for contacting a frictional surface over which the wheel centre is to spin. Air flow passageways (22) are formed through the wheel centre, and extend between opposite sides of the wheel centre to allow air flow therethrough to dissipate excess heat caused by friction while the wheel is moving on the frictional surface.