These lazy susan bearing are made from cast aluminium with a 12mm thickness and are available in a variety of diameters from small (120mm) to the largest commercially available (450mm).
The load rating for all bearings is listed below and a 2mm offset between the inner and outer ring allows the bearing to spin freely alleviating rubbing.
120 - 250mm = 50kg
300mm = 150kg
350mm = 180kg
400 - 450mm = 300kg
All bearings come with clear suction stoppers to attach glass to it easily in the traditional way. They can be removed so the 5mm countersunk holes can be used to screw in place.