Valeoscope Commercial Vehicles Clutch 2020

Valeo clutch and actuation for heavy duty

Intermediary pressure plate

Cover assembly

Flywheel side clutch disc

Gearbox side clutch disc

Release bearing

Composition of twin disc clutch kit

Clutch Facing F830™

Clutch Facing F510™

Facing The facing role is to transmit the full engine torque. For this reason, they have to be selected according to the following criteria: ●● Friction coefficient: It is the ratio between the force F needed to move an object on a surface and its weight. It depends on the contact surface size. It is essentially related to the nature of the surface. The coefficient for a tire on ice is very low, and close to 0. On dry asphalt, this coefficient can be more than 1. For clutch, the facings are in contact with the flywheel and with the pressure plate. ●● Wear on the facing: It determines the life duration of the friction material. ●● Mechanical resistance: Burst and elastic stress (gymnastics).

Twin-disc advantages compared with single disc clutch 1. Wear capacity increased from 3mm to 5,5mm; 2. Better thermal adaptation for severe applications: Overloaded trucks Construction Life duration is multiplied by 2 to 4 in severe usage; 3. Increased damper capacity (engine torque shared between 2 discs);

●● Thermal resistance: applications to high thermal stresses. ●● Aggression resistance: wear and scratches on the flywheel and the pressure plate. ●● Comfort: It means torque transmission progressivity and decreased risk of icing. Inertia Inertia is the clutch disc resistance to changes in its rotating state when there is a gear shifting. The smaller the inertia, the quicker the gear shifting. Valeo’s commitments on facing ●● 100% environmentally friendly material: Valeo banned chlorinated solvents and aramid fibers in addition to asbestos and lead. Valeo friction materials can be 100% recycled when dismantled.

4. Increased damper durability (engine torque shared between 2 discs); 5. More reliable as they are sold as kits: The parts are made to be fitted together which is not always the case with separate components; Guaranty of a more reliable repair for the final customer.

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