Mould-on polyurethane, hardness 95 Shore A. hub directly made into the centre. The wheel hub is designed to be easily reprocessed to obtain a keyway or housing for clamping. Any further reprocesses on the wheel must be carried out with maximum working temperature up to 80°C, (recommended max limit temperature during normal use of the product) to prevent degradation of the polyurethane coating.Ideal solution for equipment with drive wheels. hub with ball bearings. Ideal solution for heavy loads and continuous moving.