- Very rigid in torsion - Misalignment absorbed by stainless steel disc - Backlash free - Resistant to oil and chemical products - Maintenance free - Materials: Hubs: Aluminium A-U4G Disc: Stainless steel 301 Pin: Stainless steel 303 Central disc: A-U5 Pb Bi - Max. working temp.: +100°C Uses - Ideal for use with stepper motors that cannot detect start position - Applications requiring high accuracy - Automated systems