During gear shifting.releas bearing push Diaphragm Spring Finger dur to release fork movement.That is,release bearing push diaphragm spring finger as moving toward engine side, pressure plate is moved engine opposite by the reason of a lever principle.As a result clutch is disengaged and power is cut off.
Except during gear shefting, power is transmitted to transmission due to contact of Pressure Plate and Clutch Disk.
Clutch Release Bearing always rotates same RPM as crank shaft and during gear shifting, axial load is applied to release bearing.