Team Corally Ball Bearing ABEC 3 12x21x5mm 4 Piece Pack C-3611-3-12-21-05

Overview

The Corally Ball Bearing ABEC 3 12x21x5 (4 pieces) is an essential replacement and upgrade component for RC car enthusiasts across the UK. Whether you're maintaining your RC car collection, upgrading the drivetrain of your latest RC model, or simply keeping spare bearings on hand for competition day, these precision ball bearings deliver the reliability and performance that serious RC hobbyists demand. Designed specifically for high-speed RC vehicles, these bearings are engineered to reduce friction, improve efficiency, and extend the lifespan of your RC car's mechanical components.

For anyone serious about RC car UK performance, quality bearings make a tangible difference. The Corally range has earned a strong reputation within the RC hobby community for delivering components that balance performance with affordability. These ABEC 3 rated bearings are suitable for everything from casual weekend bashing to more serious recreational racing, making them a versatile choice for hobbyists at any skill level. The four-piece pack ensures you have extras on hand, whether you need them for maintenance, repairs, or upgrades to multiple vehicles in your RC collection.

If you're looking to upgrade your RC car with improved performance components or simply maintain your existing setup to keep it running smoothly, the Corally Ball Bearing ABEC 3 is a smart investment that delivers genuine value and proven durability. These bearings represent the kind of quality component that separates well-maintained RC vehicles from those that suffer from premature wear and performance degradation.

Key Features

• ABEC 3 Precision Grade — The ABEC 3 precision rating ensures these bearings meet internationally recognised standards for concentricity and tolerances, providing smooth rotation and reliable performance in high-speed RC applications where precision matters for overall drivetrain efficiency and longevity.
• Chrome Steel Construction — Manufactured from chrome steel, a material renowned for its durability, corrosion resistance, and ability to withstand the stresses of repeated use in RC vehicles, these bearings maintain their integrity through countless hours of driving and racing.
• Rubber Shielded Design — The rubber shield seals protect the bearing's internal components from dirt, dust, and moisture that can accumulate during outdoor RC car use, significantly extending bearing life and maintaining smooth operation even in less-than-ideal conditions.
• Compact 12x21x5mm Dimensions — With an inner diameter of 12mm, outer diameter of 21mm, and 5mm width, these bearings fit a wide range of RC car models and are dimensionally precise for drop-in installation without requiring any modifications.
• Four-Piece Value Pack — The four-bearing pack gives you multiple spare bearings to replace worn units across different RC vehicles or to maintain a supply for regular maintenance, reducing downtime and ensuring you're always ready to run.
• Universal Compatibility — As a radial bearing with standard specifications, this component is compatible with numerous RC car platforms and brand applications, making it an essential part to stock for any serious RC enthusiast's spare parts collection.

Technical Performance

The Corally Ball Bearing ABEC 3 12x21x5 represents precision engineering designed specifically for the demands of RC car performance. These radial bearings are classified as ABEC 3, which is an internationally recognised standard that guarantees the bearings will perform consistently with minimal runout and excellent concentricity across the racing and recreational RC community. The chrome steel material used in their construction provides exceptional hardness and wear resistance, critical qualities for bearings that must endure the rotational forces, impacts, and temperature variations inherent in RC car operation. The rubber shield sealing system protects the internal ball races and lubricant from contamination whilst allowing the bearings to breathe, preventing moisture entrapment that could cause corrosion and performance degradation over time. At 12mm inner diameter and 21mm outer diameter with a 5mm width, these bearings are precisely engineered to exacting tolerances, meaning they will fit correctly into bearing housings without play or forcing, which is essential for maintaining the tight tolerances that modern RC cars demand. Whether you're upgrading an existing RC vehicle, performing routine maintenance on your RC car collection, or building a competitive machine, these bearings deliver the kind of smooth, consistent performance that makes the difference between an average run and an excellent one on track or trail.

What's in the Box

• 4 x Corally Ball Bearing ABEC 3 12x21x5

Frequently Asked Questions

• What does ABEC 3 precision rating mean for my RC car? — ABEC stands for Annular Bearing Engineers Committee, and ABEC 3 is an international standard rating that certifies these bearings meet strict tolerances for roundness, concentricity, and smoothness. This means they'll rotate smoothly and consistently, reducing friction in your RC car's drivetrain and providing more reliable performance compared to non-rated bearings. For RC applications, ABEC 3 is an excellent balance between precision and affordability.
• Will these bearings work on my RC car or truck? — Yes, these are standard radial ball bearings with 12mm inner diameter and 21mm outer diameter, which means they're compatible with a very wide range of RC cars, buggies, trucks, and truggy models. However, always check your specific vehicle's manual or component list to confirm the bearing dimensions required before ordering. If you're uncertain, contact our team at RC Model Shop and we can help you verify compatibility.
• How often should I replace my RC car bearings? — This depends on how frequently you use your RC vehicle and the conditions in which you run it. For casual recreational use, bearings can last quite a long time with basic maintenance. However, if you notice grinding sounds, resistance to spinning freely by hand, or any roughness during operation, it's time to replace them. Regular maintenance and occasional bearing inspection will help you catch wear before it impacts performance. Having spare bearings on hand, like this four-piece pack, means you can replace them immediately if needed rather than missing out on valuable running time.
• Are these suitable for competitive RC racing? — Yes, absolutely. The ABEC 3 precision rating and chrome steel construction make these bearings suitable for competitive recreational racing and serious hobbyist use. They deliver the consistent performance and reliability that racers depend on. For elite-level competition, some racers may opt for even higher ABEC ratings, but for the vast majority of UK RC enthusiasts, these Corally bearings deliver excellent value and performance.
• What does the rubber shield do? — The rubber shield is a protective seal that sits over the bearing's internal components. It prevents dirt, dust, sand, and moisture from entering the bearing whilst still allowing it to spin freely. This is particularly important if you use your RC car outdoors where contamination is inevitable. The shield significantly extends bearing life by keeping the internal races and balls clean and well-lubricated.
• Do I need any special tools to install these bearings? — Installation depends on your specific RC car's design. Most RC cars use a bearing press or removal tool to swap out old bearings for new ones. Some vehicles make bearing replacement straightforward with minimal tooling, whilst others require specific tools. Check your RC car's instruction manual for detailed installation instructions. If you're unsure, our RC Model Shop team can provide guidance.

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 BALL BEARING ABEC 3 12X21X5 4 PCS C-3611-3-12-21-05 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.