ROSTA oscillating drive heads type STI are flexible joints transmitting the acceleration forces.
ROSTA oscilllating drive heads type STI are flexible joints transmitting the acceleration forces from eccentric drive to the oscillating machine part - free of play, silently, reliably and without requiring maintenance. The common maintenance problems which are a common characteristic of these drive components are thus eliminated.
The inner square section (core) and the trough are joined together by a so-callled "fork". The outer housing is screwed to the slider crank rod and locked. Right or left-hand threads are available, which allows the crank length to be adjusted easily. The drive heads are made out of aluminium.