Oil Shear Principle
Electro Shear® brakes transmit torque through the shearing of oil molecules between alternating paper friction discs and steel wear discs. The viscous shearing of the oil (automatic transmission fluid) dissipates the heat generated from the operation of the Electro Shear® and is carried away by the continuous circulation of the oil.
The oil shear principle is the primary reason oil shear brakes offer extremely long service life and superior reliability.
Electro Shear® brakes incorporate a true oil shear into the design where the friction discs are continuously flooded with oil to continually lubricate and cool friction disc surfaces. A true oil shear actually cuts across the film of oil molecules that is maintained between the alternating disc surfaces.
The oil itself acts as efficient power transmission medium, which relieves the mechanical friction surfaces of much of the work. The oil effectively absorbs and dissipates heat
The Electro Shear® brakes contains a stack of alternating discs. The Electro Shear® utilizes advanced composite paper friction discs and steel disc wear plates.
Operation of the Electro Shear® brake begins with an oil film which is made up of multiple oil molecules. Molecules of oil are attracted to one another, giving oil defined viscosity.
The Electro Shear® brake maintains a film of oil between the friction surfaces, through which torque is transferred.
Oil molecules ride on and between the friction discs and act like small hydro dynamic bearings.
As the friction discs begin to rotate, the opposing drive cuts across the film of oil molecules.
The kinetic energy (heat) generated during operation of the Electro Shear® brake is carried away by the continuous circulation of the oil molecules.