Racing Range | Front Sprockets

Front Sprockets by Gandini

Precision and Strength for Extreme Performance

Gandini Race front pinions, made from solid 18NiCrMo5 steel, are designed to deliver optimal performance, reliability, and durability. Featuring a lightweight design and superfinishing treatment, followed by case hardening and tempering, these pinions maintain their strength even in the most extreme conditions.
The final result is a mirror-like finish that reduces friction and enhances wear resistance.

High-Quality 18NiCrMo5 Steel

The Strength of Gandini Front Sprockets

MATERIAL
Made entirely of 18NiCrMo5 steel, known for its excellent wear resistance due to its nickel (Ni), chromium (Cr), and molybdenum (Mo) content. Used in high-stress applications like gears, shafts, and front sprockets. 18NiCrMo5 is a case-hardening steel with an optimized composition for sprocket production due to:
✔ High fatigue resistance – Nickel provides toughness and impact resistance.
✔ Excellent wear resistance – Chromium and molybdenum improve surface hardness post heat treatment.
✔ Good machinability pre-treatment – Enables accurate tooth profiling before hardening.

HARDNESS
Case hardening and tempering create a hard surface layer (60–62 HRC) while maintaining a tough, impact-resistant core. This dual structure protects against chain wear without making the pinion brittle.

• Hardening: is a heat treatment that involves heating the steel to a specific temperature, followed by rapid cooling (in oil, water or gas) to obtain a harder and stronger structure. After carburizing, the front sprockets is hardened to obtain a martensitic structure, which increases wear and fatigue resistance. This combination ensures that the sprocket teeth resist wear from contact with the chain without becoming brittle, preventing sudden breakage due to high loads.

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Exceptional Durability and Performance

Guaranteed Strength in All Conditions

Cemented, hardened, and superfinished 18NiCrMo5 steel is ideal for racing front sprockets. It combines wear resistance, surface hardness, core toughness, and smoothness to maximize durability, enhance transmission efficiency, and ensure reliable performance under extreme conditions.

Finish

Superfinished Surfaces for Enhanced Performance

Isotropic Superfinishing, Surfaces and Superfinishing: The quality of a component’s surface directly affects its mechanical performance, wear resistance and durability. A surface that has less roughness reduces reduces friction, improves fatigue resistance, and prevents corrosion and premature wear. Isotropic superfinishing is a machining process that further improves surface roughness and dimensional accuracy, reducing micro-imperfections, increases the quality of contact between mated surfaces, reducing the risk of grip and improving smoothness. Advantages of Superfinishing: Maximum efficiency and durability After carburizing and hardening, superfinishing reduces surface roughness, improving sprocket performance:

Reduced friction

It decreases the mechanical resistance between chain and sprocket, improving transmission efficiency.

Lower chain wear

Smooth surfaces reduce chain abrasion, increasing the life of the drive system.

Increased fatigue resistance

It eliminates micro-cracks and roughness, reducing the risk of structural failure.

Technological Innovation and Advanced Research

Evolving Performance

Gandini Race products are the result of continuous R&D aimed at optimizing performance and durability. Our scientific approach to design and materials selection, supported by lab testing and simulations, confirms Gandini Race as a superior solution for track conditions.
These results come from years of experience and research, with the goal of providing racers with crowns and sprockets capable of withstanding the most extreme conditions on the track.
Our mission: ongoing innovation.

Get in touch with us

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Gandini Ingranaggi extends over 3000 covered square meters, has a large fleet of latest-generation machines, a complete tool warehouse that allows it to offer its customers a production from single processing to complete supply, in small and medium quantities.

Via Brescia, 53 ∙ 25014 Castenedolo BS ∙ Italy

Tel. +39 030 2131109
Fax +39 030 2131149
Ingranaggi Gandini info@ingranaggigandini.com
Gandini Race info@gandinirace.it

Ingranaggi Gandini

Gandini Race