Material: Aluminium clamp hubs, stainless steel bellow. Zero backlash, with high torsional stiffness. For machine tools, packing machines, textile machines, linear drives etc.. With clamps, ready-to-install for rapid mounting. Temperature range of all types -30°C to +120°C. ¹⁾ Standard bores. ²⁾ Different bores (even one-sided) up to max bore as well feather keyways, available against surcharge.Please regard the operating factors. See PDF-catalog page.