Overview
The ARRMA 61T Spur Gear (0.8Mod) Z-ARA311100 is a high-quality transmission component designed for serious RC enthusiasts who demand reliability and performance from their RC car setups. Whether you're running an RC monster truck, short course truck, or stadium truck, this precision-engineered spur gear is built to withstand the demands of extreme RC action and provide smooth, consistent power delivery in all conditions. This is an essential upgrade or replacement part for anyone looking to maintain or enhance their ARRMA vehicle's transmission system.
Manufactured from tough 4140 medium carbon steel, this spur gear represents a significant step up in durability compared to standard composite alternatives. The material science behind 4140 steel makes it ideal for high-performance RC applications where gear wear and tooth stripping can compromise performance. If you're a weekend basher pushing your ARRMA to its limits, or a competitive racer seeking reliable transmission components, this spur gear delivers the toughness and precision you need to keep racing.
The ARRMA 61T Spur Gear is compatible with a comprehensive range of ARRMA vehicles including the FURY 223S BLX brushless short course truck, GORGON MT monster truck series, QUAKE 223S brushless monster truck, and VORTEKS 2WD models. This makes it an excellent choice for ARRMA owners across the UK looking for genuine replacement parts or upgrade components to boost their vehicle's reliability and performance on the track or bash course.
Key Features
- 4140 Medium Carbon Steel Construction — This premium material offers exceptional durability and resistance to wear, ensuring the gear teeth maintain their profile and engagement characteristics even under extreme RC driving conditions, making it far more resistant to stripping than composite alternatives.
- Precision Manufactured Gear Teeth — Each tooth is manufactured to exacting tolerances, ensuring smooth, consistent power transmission and eliminating binding or grinding that can occur with poorly machined gears, resulting in quieter operation and better overall performance.
- 0.8 Module Tooth Profile — The 0.8 modulus specification ensures perfect compatibility with mating pinion gears in your ARRMA transmission, providing optimal load distribution and durability across the entire drivetrain system.
- 61 Teeth Configuration — The 61-tooth count delivers the precise gear ratio characteristics that ARRMA engineers designed for these specific vehicles, providing balanced acceleration and top speed performance.
- 32 Pitch Specification — This pitch rating works in harmony with the 0.8 module specification to create a gear system optimised for 1/10 scale RC vehicles, ensuring teeth engage smoothly without excessive backlash.
- 6mm Tooth Face Width — The substantial tooth face width distributes loads across a wider contact area, reducing stress concentration on individual teeth and extending the working life of the gear significantly.
- Long-Lasting Durability — The combination of premium materials and precision manufacturing means this spur gear will outlast standard components, saving you money on frequent replacements and keeping your RC car running reliably through countless driving sessions.
Technical Performance
This ARRMA 61T Spur Gear represents a significant step forward in transmission reliability for 1/10 scale RC vehicles. The 4140 medium carbon steel material is specifically chosen for its balance of hardness and toughness—it's hard enough to resist the tooth wear that occurs during aggressive acceleration and deceleration cycles, yet tough enough to absorb sudden shock loads without cracking. The 0.8 modulus specification combined with the 32 pitch rating creates a gear system optimised for 1/10 scale RC cars running brushless motors, whether you're piloting a FURY short course truck, a GORGON monster truck, a QUAKE brushless monster truck, or a VORTEKS off-roader. The 61-tooth count provides the transmission ratio that ARRMA engineers specified for these vehicles, balancing acceleration response with stable high-speed performance. With a 6mm tooth face width, the gear distributes forces across a broader contact area, reducing individual tooth stress and translating to longer service life even when driving at high RPM with maximum throttle. Precision manufacturing ensures minimal runout and perfect tooth profile, meaning smooth, quiet engagement with pinion gears throughout the transmission's operating range. This is the kind of component that separates casual hobby drivers from serious RC enthusiasts who understand that reliability enables fun.
What's in the Box
- 1 x ARRMA 61T Spur Gear (0.8 Mod, 32 Pitch)
Frequently Asked Questions
- Which ARRMA models are compatible with this 61T spur gear? — This gear is specifically designed for ARRMA FURY 223S BLX brushless short course trucks (available in green, blue, and other colours), GORGON MT monster trucks including the MEGA 550 2WD variant, QUAKE 223S brushless monster trucks, and VORTEKS 2WD models. Check your vehicle's model number against the comprehensive compatibility list to confirm fit before ordering.
- Why is 4140 medium carbon steel better than composite gears? — Composite gears are lighter and cheaper to produce, but they wear faster under sustained high-RPM running and are vulnerable to tooth stripping when you hit obstacles at speed. 4140 steel is significantly harder and more durable, resisting both gradual wear and sudden shock damage, making it the preferred choice for serious RC drivers who don't want mid-session failures.
- What does 0.8 module mean and why does it matter? — Module is a measurement that defines the size and pitch of gear teeth; 0.8 module means the teeth are scaled to work perfectly with other 0.8 module components in your ARRMA transmission. Using the wrong module causes poor meshing, noise, and premature wear, so always match module specifications exactly.
- Is this suitable for beginners? — This is a replacement or upgrade component rather than a complete vehicle, so you'll need an existing ARRMA vehicle to use it. However, if you're a beginner with an ARRMA short course truck or monster truck, upgrading to this steel spur gear from the standard composite version is an excellent way to improve reliability and learn about drivetrain maintenance and upgrades.
- How often will I need to replace this spur gear? — With proper maintenance and lubrication, the 4140 steel construction should provide significantly longer service life than composite alternatives. Many RC drivers find that steel gears last 2-3 times longer, though replacement intervals depend on driving intensity, maintenance habits, and running conditions.
- What is 32 pitch and why is it specified? — Pitch refers to the number of teeth per inch of diameter; 32 pitch combined with 0.8 module is the specification ARRMA designed for their 1/10 scale vehicles. This creates proper engagement with pinion gears and delivers the intended gear ratio characteristics for balanced performance.
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 ARRMA 61T Spur Gear (0.8Mod) Z-ARA311100 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.
