Ferrari 312PB Ring Gear

Ferrari 312PB Ring Gear. This ring gear was designed, developed and manufactured in-house by Ark Racing Limited. It is made to the highest standards using high-grade steel, Nitrided heat treatment with a Shot Peened surface treatment.

Developed and manufactured to professional motorsport standards keeping strength, durability and weight (mass) in mind.

This Ferrari 312PB separate ring gear is also available as part of a kit which includes our Ferrari 312PB Starter Motor, which we recommend using with this ring gear as intended.

Suitable for: Ferrari 312PB

Specification:
Material: 817M40T (Steel)
Heat Treatment: Nitride
Surface Treatment: Shot Peened
Starter Ring: Ring Gear
Mass: 0.62 Kg (1.4 lb)

Mass Converter Tool

NOTE: *It is a myth that a lightweight flywheel gives you more power. It actually doesn’t!

What it does achieve is it reduces the rotating mass and inertia in your vehicle. The result is your engine isn’t using valuable horsepower spinning up a heavy flywheel, it’s going straight to your wheels onto the road which is where you need it, with the bonus of making your car lighter as well.


We manufacture a range of bespoke Starter Motors made-to-order in a variety of Voltages, Toothed Gear, Long Nose, Short Nose and D.O.R. (CW/ACW) including High-Quality Billet Flywheels for Cosworth engines. Various clutch sizes and weights (Mass) in STD, LITE and custom-specific developed.

We also design, develop and manufacture starter motors and flywheels for other Ferrari Models including, but not limited to: 

Ferrari 250 Sports Car Starter 53-64 | Ferrari 206 Dino 68-74 Starter 53-64 | Ferrari Off Car Assembly | Ferrari 308 GTB and GTS | Ferrari 312 T3 F1 Car Starter | Ferrari 365 Starter 72-89 | Ferrari 512 M and S Starter 69-70 | Ferrari 712 CAN-AM Starter 1971 | Ferrari 312P Starter Short Nose | Ferrari 312P Starter | Ferrari 312 Starter Long Nose | F40 Flywheel | Ferrari 250 Standard Flywheel | Ferrari Flat 12 Starter Motor | Ferrari 312PB Starter | Ferrari 312PB Ring Gear | Ferrari 430 Ring Gear | Ferrari V8 Group C Starter | Ferrari 312PB Starter Motor and Ring Gear Kit

Whatever your requirements are, whether high-output, high-torque, weight-reduction or something more specific,
Ark Racing Limited can provide a solution.


ALSO AVAILABLE for use with Flywheels requiring Clutch Bolts.

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ALSO AVAILABLE for use with Flywheels requiring Clutch Bolts. |

We recommend using our Clutch Bolts which come with
K-Nuts at a competitive price, in some instances
SAVING 25% over our competitors.

SAVE up to 25% over competitors

More sizes are available
or can be produced please call

📞0845 557 7408

Sizes Available:
38.5 | 40mm  | 43mm | 48mm | 52mm | 55mm | 60mm | 64 mm | 68mm | Cosworth DFV | BMW M12 44mm Eccentric Clutch Stud

More sizes are available
or can be produced, in Concentric or Eccentric please enquire.


If you can’t find what you’re looking for, contact us.

Ark Racing can create a solution to meet your requirements.

Call us on +44 (0)845 557 7408 or complete our online contact form.

 
Ark Racing Limited

ARK CNC is a small family-run business that has been manufacturing CNC components for over 20 years. We have a lot of experience in small batch production of specialist components. A subsidiary of ARK RACING LIMITED.

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BMW M12 56mm Eccentric Clutch Stud

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Ferrari 312PB Starter Motor and Ring Gear Kit