Overview
The UDI RC SUN GEAR ZINC ALLOY 4PCS is an essential replacement component for RC car enthusiasts across the UK who demand durability and performance from their models. Manufactured by UDIRC, a brand recognised for engineering electric ready-to-run RC vehicles built for performance and reliability, this sun gear set represents a critical upgrade or replacement part for maintaining optimal drivetrain performance. Whether you're a weekend basher, a competitive racer, or someone who simply wants to keep their RC car UK collection in peak condition, this zinc alloy sun gear pack delivers the durability and precision engineering expected from quality RC car parts.
Sun gears form a vital part of the differential assembly in RC cars, working in conjunction with the ring gear and side gears to distribute power smoothly to the wheels whilst allowing them to rotate at different speeds during cornering. The zinc alloy construction of this four-piece set offers superior wear resistance compared to plastic alternatives, making it an excellent choice for drivers who frequently bash their models or compete in racing events. With UDIRC's commitment to quality and engineering excellence, these replacement sun gears ensure your RC car maintains consistent handling characteristics and smooth power delivery throughout intense driving sessions.
RC Model Shop stocks genuine UDIRC parts, and we understand that proper maintenance and timely component replacement are essential for maximising the lifespan of your RC investment. These sun gears are designed to withstand the demands of serious RC driving, whether you're tackling rough terrain, high-speed circuits, or challenging off-road courses. Keep your drivetrain performing at its best with these professional-grade replacement components.
Key Features
- Zinc Alloy Construction — The gears are manufactured from robust zinc alloy material, which provides exceptional hardness and wear resistance compared to plastic gears, ensuring they maintain precision tolerances even after extended use and high-torque applications.
- Four-Piece Set — This pack contains four sun gears, offering excellent value and ensuring you have spare components available for future maintenance or repairs without needing to purchase multiple packs.
- OEM Quality Engineering — Manufactured by UDIRC with the same precision and quality standards applied to their ready-to-run RC vehicles, these gears are engineered to exact specifications for perfect fit and performance.
- Differential Compatibility — Sun gears are essential components of the differential assembly, responsible for power distribution and allowing wheels to rotate at different speeds, which is crucial for smooth cornering and stable handling in RC cars.
- Durability for Competitive and Recreational Use — Whether you're engaging in casual weekend bashing or competitive racing, zinc alloy sun gears provide the strength needed to handle demanding driving conditions without premature wear or failure.
- Direct Replacement Part — As an OEM component from UDIRC, these sun gears are designed to be direct replacements, ensuring compatibility and maintaining your vehicle's original performance characteristics.
Technical Performance
The UDI RC SUN GEAR ZINC ALLOY 4PCS represents professional-grade replacement components engineered for serious RC drivers. Zinc alloy offers a significant material advantage over standard plastic gears used in entry-level RC cars, providing superior hardness, wear resistance, and longevity under sustained high-torque conditions. The sun gear is a critical component within the differential assembly of RC cars, working alongside the ring gear and side gears to manage torque distribution to the wheels whilst accommodating the rotational speed differences required when the vehicle turns. In traditional open differentials, the sun gear engages with the side gears and receives rotational input from the ring gear, which is driven by the motor through the transmission system. The precision engineering of UDIRC components ensures these gears maintain exact tolerances, enabling smooth engagement and consistent performance throughout the life of the component. For RC enthusiasts in the UK seeking replacement parts that deliver reliability and durability, these zinc alloy sun gears significantly outperform plastic alternatives, particularly in applications involving frequent acceleration, cornering stress, and high-speed driving. The four-piece configuration provides excellent value, allowing drivers to maintain spares for future maintenance cycles or emergency repairs during competitive events or recreational driving sessions.
What's in the Box
- 4x Zinc Alloy Sun Gears (UDI-P16-030A)
Frequently Asked Questions
- What is a sun gear and why do I need to replace it? — A sun gear is a critical component of the differential assembly in RC cars, working with the ring gear and side gears to distribute power to the wheels and allow different rotational speeds during cornering. Over time, gears wear due to friction and torque stress, causing play in the differential and degraded handling. Replacing worn sun gears restores smooth power delivery and precise handling characteristics essential for both competitive racing and recreational driving.
- Why is zinc alloy better than plastic gears? — Zinc alloy offers significantly superior hardness, wear resistance, and longevity compared to plastic gears. Whilst plastic gears are adequate for casual use, zinc alloy gears maintain their precise tolerances far longer under demanding conditions, making them the choice for serious RC car UK drivers who want maximum reliability and minimum maintenance downtime.
- How many sun gears does my RC car need? — Most RC cars with open differential systems use multiple sun gears within the differential assembly. This four-piece set ensures you have sufficient replacement components for maintenance cycles or can service multiple vehicles. Check your vehicle's manual to determine the exact number required for your specific model.
- Are these gears compatible with all UDI RC models? — These sun gears are OEM UDIRC components engineered to exact specifications. Compatibility depends on your specific vehicle model, so we recommend consulting your vehicle's manual or contacting our expert team at RC Model Shop to confirm compatibility before ordering.
- What tools do I need to replace sun gears? — Replacing differential gears requires disassembly of the differential assembly, which typically involves removing the gearbox housing and working with small components. You'll need basic RC tools including hex wrenches, screwdrivers, and potentially a gear removal tool. Detailed instructions are usually available in vehicle service manuals or online RC community resources.
- How do I know if my sun gears need replacement? — Signs of worn sun gears include loose or sloppy differential behaviour, uneven power delivery to the wheels, or clicking sounds from the differential assembly during acceleration or cornering. If your vehicle's handling feels inconsistent or you notice excessive play in the drivetrain, inspection and replacement of the sun gears may be necessary.
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 UDI RC SUN GEAR ZINC ALLOY 4PCS UDI-P16-030A 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.
- Product Type: Replacement Sun Gear Set
- Manufacturer: UDIRC
- Model Number: UDI-P16-030A
- Quantity: 4 pieces
- Material: Zinc Alloy
- Component Type: Differential Sun Gears
- Application: RC Car Drivetrain / Differential Assembly
- Features: High wear resistance, precision engineering, OEM quality
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.
- Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
- Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
- If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
- We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
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- If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
- For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.
