Traxxas Ball Bearing Set Black Sealed 1/18 RC Car TRX9745X

Overview

The Traxxas Ball Bearing Set TRX9745X is an essential upgrade for RC enthusiasts looking to maximise the performance and longevity of their TRX-4M scale crawler. Whether you're a serious RC competitor, a weekend basher tackling challenging terrain, or someone new to the RC hobby in the UK, this complete bearing set represents a significant performance enhancement over stock bushings. By replacing the standard components with precision ball bearings, you'll experience noticeably reduced friction, improved handling precision, and enhanced overall drivetrain efficiency across your TRX-4M model.

Traxxas is a world-renowned manufacturer of high-quality RC vehicles and parts, trusted by hobbyists and professionals alike across the UK and globally. This bearing set specifically targets TRX-4M owners who demand the best from their 1/18 scale 4WD crawlers, whether they're running the Ford Bronco, Land Rover Defender, Chevrolet K10, or Ford F-150 variants. The complete kit contains everything you need to perform a full bearing upgrade, eliminating the need to source individual bearing sizes separately.

What sets this product apart from aftermarket alternatives is Traxxas's engineering expertise and quality control standards. These aren't generic bearings—they're specifically engineered for TRX-4M compatibility and designed to work seamlessly with the vehicle's transmission and drivetrain systems. For RC car enthusiasts in the UK seeking genuine Traxxas components, this bearing set delivers the authenticity and reliability you'd expect from the brand.

Key Features

• Black-Seal Ball Bearings — These bearings feature an advanced black rubber seal design that goes a step beyond traditional blue-seal bearings, offering an even tighter seal for ultimate protection from dirt, moisture, and debris. This enhanced sealing is particularly valuable for UK hobbyists who frequently run their RC crawlers in wet, muddy, or dusty outdoor environments, as it significantly reduces maintenance requirements and extends bearing lifespan.
• Complete Multi-Size Kit — The set includes five different bearing sizes (3x6x2.5mm, 5x8x2.5mm, 4x8x3mm, 8x12x3.5mm, and 3.5x7x2.5mm) in the correct quantities needed for a full drivetrain upgrade, eliminating guesswork and ensuring you have exactly what's required for proper installation across all drivetrain locations on your TRX-4M.
• Precision Engineering for TRX-4M — These bearings are manufactured to Traxxas's exacting specifications and engineered specifically for 1/18 scale TRX-4M crawlers, ensuring perfect fitment and compatibility with the vehicle's transmission, differentials, and drivetrain components without any modification required.
• Reduced Friction Performance — Ball bearings naturally provide significantly lower rolling resistance compared to traditional bushings, which means your TRX-4M will accelerate more responsively, maintain better momentum through technical sections, and deliver improved overall handling precision during trail runs and competitive events.
• Increased Durability in Harsh Conditions — The tight black rubber seal keeps contaminants out while maintaining proper lubrication inside the bearing, making these ideal for RC crawlers that regularly encounter muddy trails, water crossings, and sandy terrain common throughout the UK's diverse outdoor RC driving locations.
• Lower Maintenance Requirements — Unlike bushings that wear quickly and require frequent replacement, sealed ball bearings need significantly less maintenance and deliver consistent performance over extended periods, saving you time and money in the long run.
• Genuine Traxxas Component — This is an official Traxxas accessory part, guaranteeing OEM quality, proper engineering, and full compatibility with all TRX-4M models, whether you're running the Ford Bronco RTR, Land Rover Defender RTR, Chevrolet K10, or Ford F-150 variants.

Technical Performance

These black-seal ball bearings represent a significant step forward in drivetrain precision engineering for 1/18 scale RC crawlers. The bearings are manufactured from hardened steel with precision tolerances, ensuring smooth, consistent rotation with minimal radial and axial play. The black rubber seal design creates a protective barrier that's superior to standard open or blue-seal designs, providing enhanced protection against water ingress, mud, sand, and other contaminants that would otherwise compromise bearing performance and lifespan. When installed as a complete set across the TRX-4M's transmission, differentials, and drivetrain components, these bearings create a significantly lower-friction drivetrain that translates to improved acceleration response, better energy efficiency from your battery, and enhanced steering precision during technical crawling sections. The complete set consists of eight 3x6x2.5mm bearings (the smallest size for secondary drive shafts and precision applications), four 5x8x2.5mm bearings, four 4x8x3mm bearings, two 8x12x3.5mm bearings (the largest size for main drive components), and four 3.5x7x2.5mm bearings, providing comprehensive coverage of all drivetrain locations. This variety of sizes demonstrates Traxxas's understanding of the TRX-4M's complex transmission layout and the different bearing requirements at various drivetrain points. Installation is straightforward for anyone with basic mechanical knowledge, making this upgrade accessible to both experienced RC enthusiasts and those newer to scale model maintenance. The sealed design means you won't need to worry about bearing maintenance as frequently as with open designs, though proper storage of your RC vehicle and occasional cleaning will still extend bearing life considerably.

What's in the Box

• 3x6x2.5mm black-seal ball bearings (quantity: 8)
• 5x8x2.5mm black-seal ball bearings (quantity: 4)
• 4x8x3mm black-seal ball bearings (quantity: 4)
• 8x12x3.5mm black-seal ball bearings (quantity: 2)
• 3.5x7x2.5mm black-seal ball bearings (quantity: 4)

Frequently Asked Questions

• What is the difference between black-seal and blue-seal bearings for RC crawlers? — Black-seal bearings offer an even tighter seal compared to blue-seal bearings, providing ultimate protection from the elements and requiring significantly less maintenance, particularly in dirty outdoor environments. This makes black-seal bearings ideal for UK RC enthusiasts who frequently run their vehicles in wet, muddy, or sandy conditions where environmental contamination is a concern.
• Will these bearings fit my TRX-4M model directly? — Yes, these bearings are engineered specifically for Traxxas TRX-4M compatibility and will fit all TRX-4M variants, including the Ford Bronco RTR (all colours), Land Rover Defender RTR (all colours), Chevrolet K10 High Trail Truck, Ford F-150 High Trail Truck, and the TRX-4MT Monster Truck versions. No modification is required—they're designed to be a direct replacement for the stock bushings.
• How much performance improvement will I see after installing these bearings? — You'll notice improved acceleration response, better momentum maintenance through corners and technical sections, enhanced steering precision, and overall smoother drivetrain operation. The friction reduction is particularly noticeable in crawling situations where smooth, controlled movement is essential, and the performance gains compound when the full set is installed across all drivetrain locations.
• Are these bearings suitable for beginners? — Absolutely. While bearing installation requires basic mechanical skills with small tools, the process is straightforward and well-documented in Traxxas manuals. Beginners benefit significantly from this upgrade as the improved precision helps them develop better driving technique, and the sealed design requires less maintenance than stock bushings, making the RC hobby more enjoyable and less frustrating.
• How often will I need to service these sealed bearings? — Black-seal bearings require significantly less maintenance than open or blue-seal designs. Typical recommendations involve occasional inspection and cleaning after muddy runs, but you won't need to replace the bearings nearly as frequently as stock bushings, making this a cost-effective upgrade over the long term.
• Can I use this bearing set with other RC models? — These bearings are specifically engineered for TRX-4M models. While some bearing sizes might physically fit other small-scale RC vehicles, Traxxas doesn't officially recommend cross-model use, and fitment or performance cannot be guaranteed outside of the TRX-4M platform.
• What makes Traxxas genuine parts different from third-party alternatives? — Genuine Traxxas components are engineered to exact specifications for your specific model, undergo rigorous quality control testing, and are designed to work seamlessly with all other TRX-4M systems. You're guaranteed compatibility, proper performance, and the support of the manufacturer—something that isn't always true with aftermarket alternatives available to RC hobbyists in the UK.

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 Traxxas Ball bearing set, Black rubber sealed, complete (3x6x2.5mm (8), 5x8x2.5mm (4), 4x8x3mm (4), 8x12x3.5mm (2), 3.5x7x2.5mm (4)) TRX9745X 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.