Material: Hubs made from Aluminium. Spider made from Polyurethane. Size 5 - 9: Shore hardness 92°A (gelb oder weiß). From size 14: Shore hardness 98°A (red). - Zero backlash, insertable elastic coupling. - With clamps, ready-to-install for rapid mounting. - Many different sizes and diameters available. - From size 14 can be exchanged with couplings RN, RNH and couplings from many other suppliers. On request with soft spiders 92°A. Temperature range: -30°C to +90°C. Note: Bores with * are pilot bores (not H7). The torque depends on the size of the finished bore.