Team Corally 48DP Pinion Short Hardened Steel 20 Teeth 5MM C-72420

Overview

The Corally 48 DP Pinion Short Hardened Steel 20 Teeth 5MM (C-72420) is a high-performance gear component designed for RC enthusiasts who demand precision, durability and reliability from their equipment. Whether you're a serious competitor fine-tuning your RC car UK setup or a dedicated hobbyist looking to optimise your vehicle's performance, this specialised pinion gear represents the pinnacle of modern RC engineering. Manufactured from special hardened steel using advanced CNC cutting techniques, this 20-tooth pinion is engineered to deliver vibration-free operation and unparalleled concentricity that discerning RC drivers expect when upgrading their drivetrain.

Pinion gears are critical drivetrain components that directly influence your RC vehicle's acceleration, top speed and overall performance characteristics. By selecting the correct tooth count and pitch, you can fine-tune your gearing ratio to suit different track conditions, driving styles and motor specifications. The Corally C-72420 is available in the popular 48 DP (diametral pitch) configuration, making it compatible with a wide range of modern RC buggies, trucks and touring cars commonly used in the UK RC racing scene. This short-version pinion is specifically designed for 5mm motor shafts, the industry standard for high-performance brushless RC motors.

What sets this Corally pinion apart from standard alternatives is the meticulous manufacturing process and material selection. Every gear is cut on specialised gear machines to achieve ultra-precise tooth shaping and ensures the gear runs true with minimal runout, eliminating vibration that can reduce efficiency and cause premature wear. The hardened steel construction provides exceptional toughness and durability, standing up to the demands of competitive racing, weekend bashing and everything in between. Each pinion is clearly marked with the tooth number for quick and easy identification, making it simple to swap gears when fine-tuning your RC car's performance.

Key Features

• Special Hardened Steel Construction — The pinion is manufactured from premium hardened steel that provides superior toughness and durability compared to standard materials, ensuring it can withstand the intense stresses of high-powered RC motors and demanding driving conditions without stripping teeth or failing prematurely.
• CNC Cut Teeth with Perfect Geometry — Each tooth is precisely cut using CNC machines to achieve exact tooth profiles and perfect concentricity, which translates to smooth power delivery, reduced noise and vibration-free operation that enhances overall RC performance and ride quality.
• Module 48 DP Pitch Rating — This industry-standard 48 DP specification ensures compatibility with a vast range of RC motors, spur gears and drivetrain components, allowing you to build and configure your RC setup with maximum flexibility and access to quality aftermarket parts.
• 20 Tooth Configuration — The 20-tooth count provides an optimal balance between acceleration and top speed for most track conditions and motor specifications, making this a versatile choice for both beginners learning about gearing and experienced racers looking for a mid-range performance solution.
• Short Version Design — The compact short-version profile minimises rotating mass and reduces inertia, helping your RC motor spin up more quickly and respond more efficiently to throttle inputs, which is particularly beneficial in competitive racing scenarios.
• 5MM Motor Shaft Compatibility — Designed specifically for the universal 5mm motor shaft standard used on most modern brushless RC motors, ensuring a secure fit and reliable power transmission without slippage or runout issues.
• Ultra-True Running Precision — Advanced manufacturing tolerances guarantee that the pinion runs perfectly true, eliminating harmonic vibrations that can cause premature wear, reduce efficiency and detract from your RC car's handling characteristics.
• Tooth Number Marking — Each pinion is laser-marked with its tooth count, allowing you to quickly identify the gear without guessing or testing, which is invaluable when managing multiple pinions for different track setups and weather conditions.
• Made in Europe Manufacturing — Produced to strict European quality standards using advanced equipment and quality control processes, ensuring consistency and reliability in every pinion you purchase.
• Gearing Versatility — Available in all standard gearing sizes across the 48 DP range, allowing you to find the perfect gear ratio for any track condition, motor specification or driving style, whether you prefer aggressive acceleration or high-speed cruising.

Technical Performance

The Corally 48 DP Pinion represents a masterclass in precision RC component engineering. Built from special hardened steel, this 20-tooth pinion delivers the durability and reliability required by serious RC enthusiasts in the UK and across Europe. The 5mm bore accommodates the standard motor shaft found on high-performance brushless RC motors, whilst the short version design minimises unnecessary rotating mass that could otherwise compromise acceleration response. At just 13mm in overall length and 6.2mm in teeth width, this pinion strikes an excellent balance between strength and compact dimensions. The 2.0mm hex key size indicates a secure grub screw fastening system that prevents any risk of slippage during high-torque situations. The CNC tooth cutting process ensures that each tooth profile is geometrically perfect, which is crucial for smooth mesh with your spur gear and for maintaining consistent power delivery throughout acceleration and cornering. The combination of hardened steel material and ultra-precise manufacturing tolerances means this pinion will maintain its performance characteristics over thousands of operating hours, resisting wear and tooth degradation far better than inferior alternatives. Whether you're running a competitive race setup or enjoying recreational RC bashing, the Corally C-72420 provides the precision and durability that justifies investment in a quality component.

What's in the Box

• Corally 48 DP Pinion Short Hardened Steel 20 Teeth 5MM (C-72420)

Frequently Asked Questions

• What does 48 DP mean and why is it important for my RC car? — DP stands for Diametral Pitch, which is a measurement that determines the size and spacing of gear teeth. 48 DP is an industry standard specification used in many modern RC vehicles, meaning this pinion will be compatible with most contemporary RC motors, spur gears and drivetrain components. The correct pitch matching between pinion and spur gear is essential for smooth operation and proper power transmission.
• How does a 20-tooth pinion compare to 19-tooth or 21-tooth alternatives? — The tooth count directly affects your vehicle's acceleration and top speed characteristics. A 20-tooth pinion represents a balanced middle ground — fewer teeth (such as 19T) would increase top speed but reduce acceleration, whilst more teeth (such as 21T) would improve acceleration but sacrifice maximum velocity. The 20-tooth configuration is ideal for general-purpose RC driving and works well across most track conditions.
• Why is hardened steel better than standard steel for pinion gears? — Hardened steel undergoes a heat treatment process that significantly increases its hardness and resistance to wear. This means teeth resist stripping and degradation even under extreme loads and sustained use. Standard steel is softer and more prone to tooth wear, especially when paired with high-powered brushless motors. The Corally hardened steel construction ensures your pinion maintains tooth integrity and smooth operation for thousands of hours.
• What is concentricity and why does the Corally pinion emphasise this feature? — Concentricity refers to how perfectly centred the gear teeth are around the motor shaft bore. If a gear has poor concentricity, it will wobble as it spins, creating vibration, noise and inefficiency. The Corally C-72420 is manufactured on specialised machinery with ultra-tight tolerances to ensure perfect concentricity, resulting in vibration-free operation that translates to smoother acceleration, reduced noise and better overall RC performance.
• Is this suitable for beginners? — Yes, absolutely. Whilst this is a high-quality component, pinion gears are universal RC parts and this 20-tooth 48 DP specification is one of the most common in the hobby. Beginners benefit from using quality components like the Corally, as superior build quality means fewer drivetrain failures and a more reliable, enjoyable RC experience whilst learning the hobby.
• What size motor shaft do I need? — This pinion is designed for 5mm motor shafts, which is the universal standard used on virtually all modern brushless RC motors. Before purchasing, verify that your motor has a 5mm shaft — most contemporary high-performance brushless motors use this specification, making the Corally C-72420 compatible with the vast majority of UK RC setups.
• Can I use this pinion with different spur gears? — Yes, as long as the spur gear also uses the 48 DP specification, it will mesh correctly with this pinion. The beauty of using standard specifications is that you can mix and match quality components from different manufacturers, allowing you to build optimised setups using the best components for your budget and performance requirements.
• How do I know which pinion tooth count to choose? — This depends on your motor's KV rating, your battery voltage, track characteristics and driving style. A 20-tooth pinion like the C-72420 provides balanced performance. If you want more top speed, consider a lower tooth count (19T), or if you want better acceleration from a standstill, try a higher count (21T or 22T). Many RC drivers keep several pinions in different tooth counts to adapt to different tracks and conditions.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the CORALLY 48 DP PINION SHORT HARDENED STEEL 20 TEETH 5MM C-72420 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.