A driving device for rolls in high speed rolling mills and the like, designed to effect the centering of a drive shaft element and of a driven shaft element and the transmission of torque. In a hollow space defined in a shaft assembly comprising two shaft members coupled together as by a spline connection...http://www.google.ca/patents/US4162618?utm_source=gb-gplus-sharePatent US4162618 - Device for rolls in high speed rolling mills and the like
