Not necessarily. Clutches are built to hold a certain amount of torque, exceed that and it starts to slip. To hold more torque one could change the friction material to something that has a higher coefficient of friction. Increasing the average diameter of the friction area, not always possible. Increase the spring pressure, more pedal effort required. Increase the number of discs, think big trucks, JD two cylinders...
If for instance you increase the area, you have the same force applied from the pressure plate. You will have less psi on the friction material resulting in less holding power per puck, but since there are extras you end up at basically the same capacity with a disc that may wear longer. If we had all the numbers we could run the math and prove it out.
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Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
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