Mantic 4wd with ER²

The Mantic 4WD Clutch kit has a number of features which make the product distinctly new. The Clutch Kit comprises of a Cover Assembly, Clutch disc and Release Bearing. The kit itself is designed with offroad drivers in mind.

The cover assembly incorporates a premium corrosion resistant surface finish which exhibits excellent resistance to oxidation over a prolonged period of time.

The cover assembly’s pressure plate is manufactured from a Spheroidal Graphite casting material which has a yield strength 300% higher than Original Equipment castings. This material microstructure also improves heat dispersion. The cover assembly also incorporates greater clamp load than a standard cover assembly for this application. This translates to more torque transfer.

This casting material has not been used in this application previously and is especially useful in 4WD applications where higher clutch operating temperatures and load transfer are experienced and required. I.e. Purposeful clutch system slipping for off road situations, towing and maneuvering external vehicle payloads like trailers and caravans.

The clutch kit’s Clutch disc has a unique flywheel side friction material. The Aramide friction material exhibits 50% less wear than a conventional Clutch disc’s friction material. This material also reduces the effects of Fade. Fade is the decline in the clutch system’s ability to transmit torque as the operating temperature increases. This feature in combination with the previously mentioned microstructure of spheroidal graphite casting allows the clutch kit to dissipate heat far more effectively, allowing the clutch to run cooler for longer.

The aramide friction material is arranged on the flywheel side of the Clutch disc in a segmented fashion. The geometric form of each of the segments increases the Mean Effective Radius (Rm) of the clutch disc. By increasing the Rm the clutch the transmittable torque increases.

Patented pressure plate ER² grooves are precision machined with CAD/CAM technology. The design enhances the performance in 2 ways. Firstly it increases the Torque Capacity of the Cover Assembly by up to 8% and secondly it assists with cooling which inturn enables the friction material to operate at lower temperatures and therefore at a higher coefficient of friction. Again this enhances the torque capacity of the clutch.