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All drive plates are high carbon spring steel that is heat treated and black zinc plated to resist bending, cracking, fatigue and rust even under severe racing conditions.
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ACT uses thicker retainer stampings for increased strength and durability.
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Spring windows are heat treated to resist wear, increase strength and reduce the chance of springs “popping” out from hub wear.
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Hub forgings are CNC machined for precision and consistency.
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All friction pads are measured, sorted and matched before assembly to insure that each disc is uniform in thickness.
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All ACT spring center race disc hub assemblies use bushings and cone springs similar to factory clutch discs. This creates frictional dampening which improves clutch life and reduces noise.
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ACT carefully selects rivet design and materials for maximum strength. Solid center discs use 16 hub rivets for high torque and shock tolerance.
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Heavy duty torsional dampening springs are stronger than standard springs and are offered in three sizes and spring rates. No more warped inserts or loose ring gears.
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Premium ceramic friction materials provide high heat tolerance, high coefficient of friction and low wear rates. Our pads will hold approximately 28% more torque than standard organic materials.
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Spring retainers utilize a wrap around spring window that not only gives liberal support for the springs, but also reduces stress concentrations that are a common cause for failure.
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We carefully broach our splines to ensure exact fit onto transmission input shafts for long spline life and better clutch release.
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SFI certification is provided on all ACT race discs. ACT race discs are legal for competition in all racing organizations that require SFI certification.
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