Mounting for rotary machine tool particularly for gear hobbing machines

摘要

A gear hobbing machine, which comprises a hobbing spindle which is supported at its outboard end in a bearing assembly attached to but removable from a supporting member and including a bearing sleeve surrounding the spindle, and means between the sleeve and the spindle which normally occupies a position in which it eliminates any significant radical play between the sleeve and the spindle but is movable to an alternative position in which it permits movement of the sleeve with respect to the spindle to enable the hob to be changed.