Overview
The Blade BLH-1666 Auto Rotation Hub Assembly is an essential replacement component set designed specifically for the Blade Fusion 700 helicopter. This comprehensive spare parts kit brings together all the core autorotation components and hardware in one convenient pack, making it the ideal choice for RC helicopter enthusiasts in the UK who need to maintain or restore their Fusion 700 to peak performance. Whether you're an experienced RC pilot conducting routine maintenance or looking to refresh worn parts after extended use, this assembly delivers genuine Blade quality and engineering.
Autorotation is a critical flight mode in RC helicopter operation, allowing the aircraft to descend safely when engine power is lost. The hub assembly sits at the heart of this system, so having a high-quality replacement is essential for reliable operation and flight safety. This official Blade spare parts kit contains everything needed to properly service or replace the autorotation hub system on your Fusion 700, ensuring you maintain the precision and reliability that Blade is recognised for throughout the UK RC helicopter community.
RC Model Shop stocks this genuine Blade part as an authorised dealer, providing UK-based RC pilots and enthusiasts with access to authentic, original equipment manufacturer (OEM) components. Whether you're a weekend flyer, a competitive RC helicopter pilot, or a serious hobbyist dedicated to keeping your aircraft in top condition, this Auto Rotation Hub Assembly offers excellent value and the peace of mind that comes with using official Blade spares.
Key Features
- Complete Assembly Kit — This is not just a single component; it's a complete autorotation hub assembly that includes all necessary parts and hardware in one package, eliminating the need to source multiple individual spares separately and saving you time and money.
- Genuine Blade Components — Every component in this kit is manufactured by Blade to their exacting standards, ensuring perfect compatibility, reliable performance, and the durability you expect from an official OEM spare part for your Fusion 700.
- Includes Hub and Cap — The assembly features both the auto rotation hub and its matching cap, which work together as a precision system to enable safe autorotation capability during emergency descent scenarios.
- Matched Ball Bearings — Two 20x25x4mm ball bearings are included, specifically matched to work seamlessly with the hub assembly for smooth operation and extended component life under the demanding conditions of RC helicopter flying.
- Sprague Clutch Included — The Sprague clutch component is crucial for proper autorotation function, allowing the rotor to freewheel when needed and enabling safe descent, and it's provided complete and ready to install.
- Comprehensive Hardware — Five M3x16mm bolts are included to ensure secure fastening of all components, with the correct specification hardware supplied to guarantee proper assembly and optimal performance.
- Auto Rotation Sleeve — The precision-engineered auto rotation sleeve is included to complete the system, working in harmony with all other components to deliver reliable autorotation performance.
- Direct Compatibility — This assembly is specifically designed and tested for the Blade Fusion 700, ensuring perfect fit, finish, and function without any modification or adaptation required.
Technical Performance
The Blade BLH-1666 Auto Rotation Hub Assembly represents precision engineering designed to meet the demanding requirements of RC helicopter operation. The assembly combines several critical components into one coordinated system: the central auto rotation hub, the hub cap, the auto rotation sleeve, a Sprague clutch mechanism, and two matched 20x25x4mm ball bearings. The inclusion of matched bearings is particularly important, as these components must work in perfect harmony to ensure smooth, vibration-free rotation and reliable autorotation performance during critical flight phases. The Sprague clutch is a sophisticated component that allows the rotor system to freewheel independently when engine power is reduced or lost, which is essential for safe emergency descent and recovery. All fastening hardware is supplied in the form of five M3x16mm bolts, which are the correct specification for secure assembly on the Fusion 700 platform. The materials and manufacturing standards employed by Blade ensure that this assembly will deliver consistent performance over many flight hours, and that replacement is straightforward for any pilot or technician maintaining an RC helicopter. The precision tolerances and quality control measures used in manufacture mean that this assembly can be relied upon to perform exactly as designed, cycle after cycle, whether during normal operation or in the critical situation where autorotation capability becomes essential.
What's in the Box
- 1 × Auto Rotation Hub
- 1 × Auto Rotation Hub Cap
- 1 × Auto Rotation Sleeve
- 1 × Sprague Clutch
- 2 × 20x25x4mm Ball Bearings
- 5 × M3x16mm Bolts
Frequently Asked Questions
- What is autorotation and why does my RC helicopter need this hub assembly? — Autorotation is a fundamental safety feature in RC helicopter operation that allows the aircraft to descend in a controlled manner if engine power is lost during flight. The auto rotation hub assembly is the mechanical system that enables this capability by allowing the main rotor to freewheel and generate lift during the descent. Without a properly functioning autorotation system, your helicopter cannot recover safely from engine failure scenarios, making this assembly essential for safe operation.
- Is this a genuine Blade original part? — Yes, the BLH-1666 is a genuine Blade OEM (original equipment manufacturer) spare part, manufactured to the exact same specifications and quality standards as the parts fitted to new Fusion 700 helicopters. Purchasing genuine Blade spares ensures perfect compatibility, reliability, and performance, and protects your investment in your aircraft.
- How do I know if my auto rotation hub assembly needs replacing? — Signs that your auto rotation hub assembly may need replacement include rough or grinding sounds during autorotation testing, difficulty achieving smooth autorotation, visible wear on hub components, or if you have experienced an autorotation failure during flight. Regular maintenance inspection will help identify wear before problems develop.
- Will this assembly fit my Blade Fusion 700? — Yes, this assembly is specifically designed for the Blade Fusion 700 and is a direct-fit component with no modifications required. The BLH-1666 is the correct part number for Fusion 700 autorotation hub assembly replacement and is guaranteed compatible with this helicopter model.
- Can I install this myself or do I need professional help? — This is a technical component that requires mechanical knowledge and the correct tools to install properly. If you are an experienced RC helicopter technician or pilot comfortable with helicopter maintenance, installation is straightforward. If you are unsure, we recommend having a qualified technician perform the installation to ensure everything is assembled correctly and safely.
- What tools do I need to install this assembly? — You will need standard RC helicopter maintenance tools including appropriate hex drivers or screwdrivers for the M3x16mm bolts, and possibly a rotor head socket or similar specialist tool depending on your specific helicopter configuration. We recommend consulting your Fusion 700 instruction manual or seeking guidance from experienced Blade helicopter pilots in the UK RC community.
- Are ball bearings included? — Yes, this assembly includes two matched 20x25x4mm ball bearings, which are precisely specified for use with the Fusion 700 autorotation system. These matched bearings are essential for smooth, reliable operation and are not sold separately in this kit.
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 BLH Auto Rotation Hub Assembly: Fusion 700 Z-BLH-1666 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.
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