APPARATUS FOR CLAMPING OR RELEASING A DRIVE WHEEL ON A SHAFT, SHEET-PROCESSING MACHINE AND SHEET-FED ROTARY PRINTING PRESS

摘要

An apparatus for clamping and releasing a drive wheel on a shaft, includes a spring device which encloses the shaft annularly to provide a direct clamping connection with the shaft. The spring device is connected to the drive wheel which can be a chain sprocket or a gearwheel. A sheet-processing machine and a sheet-fed rotary printing press, are also provided.