Overview
The Fastrax 8mm X 12mm X 3.5mm Bearing FTBB21 is an essential replacement or upgrade component for RC enthusiasts across the UK who demand reliability and precision in their models. Whether you're a seasoned RC car UK competitor, a weekend basher, or someone just getting started with remote control vehicles, quality bearings are fundamental to smooth performance and longevity. This compact bearing is engineered to reduce friction, improve efficiency, and ensure your RC model runs at its peak potential, making it an invaluable addition to any spare parts collection.
Bearings are critical components in any RC vehicle, supporting axles, shafts, and rotating elements whilst minimising wear and maximising speed delivery. The Fastrax 8mm X 12mm X 3.5mm bearing offers the precise dimensions needed for compatibility with a wide range of popular RC platforms, including crawler options, general option parts, and vehicles from leading manufacturers such as Tamiya, Team Associated, Team Losi, Traxxas, Axial Racing, and HPI. This bearing is ideal for anyone looking to maintain their ready to run RC cars at factory specification or improve drivetrain performance through targeted component upgrades.
Fastrax is a trusted manufacturer in the RC community, known for producing high-quality replacement and upgrade parts that deliver consistent performance and durability. By choosing the Fastrax 8mm X 12mm X 3.5mm Bearing FTBB21, you're investing in genuine engineering excellence that will keep your RC vehicle running smoothly for countless hours of entertainment.
Key Features
- Precise 8mm X 12mm X 3.5mm Dimensions — These exact specifications ensure universal compatibility across a broad range of RC models and platforms, making this bearing a versatile choice for your spare parts drawer. The standardised sizing means it will fit seamlessly into existing bearing housings without modification.
- Low-Friction Design — The bearing's engineering minimises rotational resistance, allowing power from your motor to transfer more efficiently to the wheels and drivetrain. This translates to improved acceleration, smoother handling, and better overall responsiveness in your RC car UK setup.
- Enhanced Durability — Fastrax bearings are manufactured to withstand the demands of regular RC use, whether you're running on pavement, dirt, or challenging terrain. Quality construction ensures extended service life and reduced maintenance intervals compared to inferior alternatives.
- Wide Platform Compatibility — This bearing works across Element Enduro, Crawler, General Option Parts, HPI, Mugen, Rival MT10, Tamiya, Team Associated, Team Losi, Traxxas, and Axial Racing platforms. This exceptional compatibility makes it a must-have spare for multi-platform enthusiasts.
- Affordable Quality — Genuine Fastrax engineering at an accessible price point means you can maintain your RC vehicle without expensive downtime or premium part pricing. Stock multiple bearings for preventative maintenance and quick swaps during extended running sessions.
Technical Performance
The Fastrax 8mm X 12mm X 3.5mm bearing represents solid engineering fundamentals applied to RC component design. At just 8mm inner bore diameter with a 12mm outer diameter and 3.5mm width, this bearing delivers a compact footprint suitable for densely-packed RC chassis designs whilst maintaining sufficient load capacity for dynamic driving conditions. The bearing's construction prioritises smooth rolling characteristics, which is essential for reducing parasitic drag in drivetrain systems where every fraction of a watt matters. Whether you're running brushless RC motors at high RPM or navigating technical crawler terrain at low speeds, this bearing maintains consistent performance across the entire operating envelope. The quality of materials and manufacturing tolerances ensure that once installed, you'll notice improved smoothness in steering response, acceleration feel, and overall drivetrain efficiency compared to worn or substandard bearings. For RC enthusiasts who understand that drivetrain health directly impacts handling characteristics and longevity, upgrading to fresh Fastrax bearings throughout your vehicle represents one of the most cost-effective performance investments you can make.
What's in the Box
- 1x Fastrax 8mm X 12mm X 3.5mm Bearing (FTBB21)
Frequently Asked Questions
- What RC models is the Fastrax 8mm X 12mm X 3.5mm bearing compatible with? — This bearing fits a wide range of platforms including Element Enduro, Crawler models, HPI vehicles, Mugen options, Rival MT10, Tamiya models, Team Associated cars, Team Losi vehicles, Traxxas models including the TRX-4, and Axial Racing platforms. The standardised 8mm X 12mm X 3.5mm sizing makes it universally applicable across many RC brands and scales, though you should verify your specific model uses this bearing size before purchasing.
- How many bearings should I keep in stock? — Most RC enthusiasts maintain a selection of spare bearings for routine maintenance and emergency replacement during extended running sessions. We recommend keeping at least 4-8 bearings of each commonly-used size in your spare parts collection to ensure you're never caught without replacements when needed.
- What is the difference between this bearing and other Fastrax bearing options? — The Fastrax range includes multiple bearing sizes designed for different RC applications and positions. This 8mm X 12mm X 3.5mm variant is one of the most common sizes across popular RC platforms, making it essential for general maintenance and repair work across diverse vehicle collections.
- Is this bearing suitable for beginner RC enthusiasts? — Yes, absolutely. Whether you're a beginner learning about RC maintenance or an experienced builder, quality bearings like the Fastrax 8mm X 12mm X 3.5mm are fundamental components that every RC enthusiast needs on hand. Replacing worn bearings is often one of the first maintenance tasks beginners learn, and this bearing's broad compatibility makes it an excellent educational and practical choice.
- How often should I replace my RC bearings? — Bearing lifespan depends on driving conditions, maintenance frequency, and usage intensity. As a general guideline, inspect your bearings regularly for dirt, sand, or water contamination, and replace them at the first sign of grinding, resistance, or visible wear. Regular bearing maintenance extends drivetrain life and maintains optimal performance across all your ready to run RC cars.
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 Fastrax 8mm X 12mm X 3.5mm Bearing FTBB21 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.
- Bearing inner diameter: 8mm
- Bearing outer diameter: 12mm
- Bearing width: 3.5mm
- Brand: Fastrax
- Model number: FTBB21
- Compatibility: Element Enduro, Crawler options, General option parts, HPI option parts, Mugen option parts, Rival MT10, Tamiya option parts, Team Associated option parts, Team Losi option parts, Traxxas option parts, Traxxas TRX-4, Axial Racing option parts
- Availability: In stock
- Quantity in pack: 1 bearing
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.
- As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
- 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.
