- Manufacturer: ARRMA
- Part Number: Z-ARA310947
- EAN: 5052127032865
- Spare Part Type: Drivetrain Spares
- Tooth Count: 57T
- Module: 0.8
- Replaces: AR310879
- Material: High-quality durable material
- Quantity Included: 1 spur gear
Overview
The ARRMA HD 57T Spur Gear (0.8 Module) is a precision-engineered replacement drivetrain component designed for ARRMA RC vehicles. This genuine OEM spare part delivers the durability and performance that serious RC enthusiasts demand, whether you're running a competitive RC buggy, stadium truck, or bashing an RC car on the track. As an essential drivetrain component in any RC model, the spur gear is critical to maintaining smooth power transfer from your motor to the wheels, making this a vital spare to keep in your RC toolkit.
Built from high-quality, durable material, this spur gear maintains consistent performance across extended running sessions and demanding terrain. For RC drivers across the UK who want reliable, genuine ARRMA spares, this HD 57T spur gear represents excellent value and peace of mind. Whether you're replacing a worn component or stocking up on spares for weekend bashing, this gear is engineered to withstand the rigours of competitive RC driving and recreational use alike.
This component replaces the original ARRMA part AR310879, ensuring perfect compatibility with your RC model. Keep one in your spares box and you'll never be caught out on the track or at the bash spot when your original gear needs attention.
Key Features
- Precision manufactured gear tooth configuration — The spur gear features precisely machined teeth that ensure optimal mesh with the pinion gear, delivering smooth power transmission with minimal backlash and vibration during acceleration and cornering.
- Tough material construction — Manufactured from high-quality, durable material specifically chosen for long-lasting durability and smooth gear mesh, ensuring the gear can handle the demands of both racing and recreational bashing without premature wear or failure.
- 57 tooth count — The 57-tooth configuration provides the correct gear ratio for your ARRMA RC model, maintaining balanced performance characteristics between acceleration and top speed.
- 0.8 module specification — The 0.8 modulus ensures perfect compatibility with ARRMA's drivetrain system and delivers optimised meshing characteristics with standard ARRMA pinions.
- Genuine ARRMA component — As an official ARRMA spare part, you're guaranteed authentic engineering, exact fitment and the reliability expected from a leading RC manufacturer.
- Easy maintenance spare — Keeping a spare HD spur gear means you can quickly replace a worn component without downtime, essential for competitive drivers and weekend bashers who want maximum track time.
Technical Performance
The ARRMA HD 57T Spur Gear delivers the engineering excellence expected from one of the world's leading RC manufacturers. This drivetrain component is manufactured to exacting tolerances, ensuring perfect mesh with your vehicle's pinion gear and delivering smooth, efficient power transfer from your brushless motor to the wheels. The 57-tooth, 0.8-module design has been specifically engineered for ARRMA's drive systems, balancing acceleration response with top-speed capability. The tough material used in construction provides exceptional resistance to wear and stress, critical in high-performance RC applications where gear mesh forces can be substantial. Whether you're running a competitive setup or enjoying recreational bashing, this spur gear maintains consistent performance through extended running sessions. The precision-machined tooth profile minimises vibration and backlash, contributing to smoother overall vehicle performance and more predictable handling characteristics. For RC drivers who demand reliability and consistency, this genuine ARRMA component represents the optimal choice.
What's in the Box
- 1 x ARRMA HD 57T Spur Gear (0.8 Module)
Frequently Asked Questions
- What does a spur gear do in an RC car? — The spur gear is a critical drivetrain component that meshes with the pinion gear (attached to your motor) to transfer power from the motor to your vehicle's transmission and wheels. The teeth on both gears interlock, creating a mechanical connection that multiplies torque while reducing rotational speed, which is essential for converting motor speed into usable wheel speed and traction.
- How do I know if my spur gear needs replacing? — Common signs include worn or chipped teeth, excessive backlash (play) in the drivetrain, grinding or clicking noises during acceleration, or inconsistent acceleration response. Inspecting your gear regularly, especially after heavy bashing sessions, helps identify wear early.
- Is this spur gear compatible with my ARRMA RC vehicle? — This genuine ARRMA HD 57T spur gear is designed as a direct replacement for ARRMA models that originally use part AR310879. Always verify your vehicle's original part number before ordering to ensure compatibility.
- What is the difference between spur gear tooth counts? — Spur gears with different tooth counts change your vehicle's gear ratio. A higher tooth count (like the 57T in this product) typically provides more torque and quicker acceleration but lower top speed, whilst lower tooth counts favour higher speed with less initial acceleration. The 57T configuration is optimised for balanced performance across most ARRMA vehicles.
- How long does a spur gear typically last? — Spur gear lifespan depends on driving style, terrain, maintenance, and how well your gear mesh is set. Competitive drivers and bashers should inspect regularly and keep spare gears on hand. Proper mesh adjustment significantly extends gear life.
- Can I use this spur gear as a spare for casual RC bashing? — Absolutely. Many RC drivers keep spare spur gears in their toolkit for weekend bashing sessions. If your gear wears out mid-session, you can quickly swap it in and continue driving, maximising your track time and enjoyment.
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 HD 57T Spur Gear, 0.8Mod Z-ARA310947 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.
We want to make sure your delivery goes smoothly, so here are some important details about our service:
- For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
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