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R&D Yamaha Superclutch
Superclutch.jpg
Crank up the Boost!
The R&D Superclutch elevates all clutch performance aspects to a higher level. The Superclutch is a supplemental clutch system that is designed “specifically” for the Yamaha to be used along with the OEM Sprag drive system. The R&D clutch design utilizes an “Oil-Loaded” Friction Disc design which will dampen constantly changing rotational mass energies, and aggressive moment of inertia shock loads that have proven to over stress the OEM Sprag clutch drive and cause failures.
The new R&D Superclutch and shaft system is CNC machined from premium billet steel alloy, heat treated, and precision ground between centers to strict aircraft tolerances. This R&D system features a unique one-piece billet shaft design that utilizes a proven high pressure, through-shaft oiling technique to lubricate the billet drive gear bearing, clutch system friction discs, and the “all important” additional rear third bearing. The Superclutch shaft features (an R&D standard) oversized threads and a flanged nut proven in design to not fatigue or break under extreme conditions and allows charger impellor torque specs to be increased safely.
The R&D Superclutch drive gear is machined from billet steel alloy, heat treated for proper hardness, and the tooth profile is precision CNC ground to OEM Yamaha specifications. The clutch surfaces of the R&D gear features special “oil-holding” wiper slots that provide improved oiling to increase lubrication to the clutch discs.
The R&D clutch discs are precision machined, heat treated, and ground to exact tolerance utilizing only the finest materials tested and proven to be the best in these type systems.
The R&D third bearing support design is integrated into a new back housing cover machined from billet aluminum with a creative precision alignment flange to insure 100% trueness and support to the third bearing. The third bearing assembly adds a tremendous amount of shaft support which will keep the shaft in line and free from the stresses of “gear climb”. The third bearing assembly will also relieve stresses on the chargers main thrust system.
For Periodic clutch maintenance and adjustments, R&D has made it easy. The clutch slip can be adjusted easily, and clutch discs inspected and or changed out without removing the shaft from the supercharger with the special tool kit provided with each system.
Minor machine work is required to the rear of the supercharger housing in order to achieve proper drive gear alignment (mating to the jack gear) and to true up the back cast surface so the third bearing housing cover mounts precision and true to the shaft centerline position. Machining is available from R&D (2-3 day turnaround time), or your local machine shop can follow the kit supplied blue print.
Technology and performance make the Superclutch the finest and most effective clutch system available. Order yours today, and Crank up the Boost!
• Precision one piece shaft design
• Billet drive gear with precision ground tooth profile to Yamaha Spec.
• Billet drive gear is precision oil sleeved (No needle bearings to fool with)
• Large turbo type compressor sized threads (No more broken shaft threads)
• Unique clutch oiling system offers reduced clutch wear and galling prevention
• Rear (3RD) bearing support system offers precision centering and alignment
• Rear (3rd) bearing reduces front thrust stack stress and premature wear
• Easy maintenance and adjustments allowed with No Main shaft Disassembly
• Easy clutch adjustments and servicing with kit supplied tool kit
Proudly Made in the USA!
Pt. #612-19200 R&D Competition Clutch-Shaft
Pt. #612-19201 Clutch Disc Rebuild Kit
www.rd-performance.com/newProduc ... ha/sho.asp 
