125mm Top Plate Fixed Castor (Flexello Pressed Steel) with 80x60mm Bolt Hole Centres. Blue Elastic Rubber Tyre on a Nylon Centre Wheel with Roller Bearing. Load Capacity = 180kg.
Elastic rubber tyres is a type of rubber that it offers higher load capacities than standard rubber tyres. The roller bearing consists of steel rollers in a plastic cage that rotate between the axle tube and the wheel’s hub. This greatly reduces rolling resistance even under load and roller bearings are maintenance free and robust.