Bearing Mounted Clutches
Bearing mounted clutches are normally off type and operate on DC voltage. On applying DC voltage to the stator (coil) strong magnetic filed is produced, which pulls the armature towards the friction material of the rotor over the air gap and torque gets transmitted free of backlash.
On switching off power supply, the unique prestressed spring the armature back into the original position and clutch is positively released free from residual torque.