ACT® SB5-HDG4 - Heavy Duty Race Single Disc Clutch Kit

Heavy Duty Race Single Disc Clutch Kit (SB5-HDG4) by ACT®. Does not Include: Flywheel. Disc Outer Diameter: 9". Input Shaft Spline: 1" x 24 Teeth. Disc Center Style: Sprung. Disc Type: 4-Pad. Clutch Torque Rating: 535 ft/lbs. Disc Material: Ceramic. This kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad spring-centered race disc features a spring-center to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 4-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 4-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.

Specifications

Includes

• 4 Pad Sprung Race Disc P/N 4228218
• Alignment Tool P/N AT90
• Pilot Bearing P/N PB1004
• Release Bearing P/N RB844
• P/PL Heavy Duty P/N SB014

Features

• Light to moderate pedal effort, aggressive engagement, OE to mild gear rattle
• Moderate friction life, extended by ACT's exclusive diaphragm design
• Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance
• 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

Advanced Clutch Technology, Inc. has been leading the clutch industry since its foundation in 1994. For over two decades ACT has designed and engineered best-in-class performance flywheels and clutch kits for sport compact cars and diesel trucks. Manufactured by combining the ultimate in design with the finest materials and manufacturing techniques, all ACT clutch kits stand unequaled in terms of predictable pedal feel, long wear life, high torque capacity and ultimate durability. Each product is thoroughly tested prior to release to ensure it meets the highest standards.