The clutch plate is linked to the gearbox shaft. In the event the clutch is engaged, the tension plate is pushed clear of the clutch plate and therefore disengaged.  Because the diaphragm is rotating (since it's connected to the strain plate, that is connected to the flywheel) the release bearing's https://clutchkereta19741.wizzardsblog.com/32978192/examine-this-report-on-clutch-plate