- Brand: Blade
- Model Number: BLH5231
- Part Type: 11T Helical Steel Pinion
- Tooth Count: 11 teeth
- Gear Profile: Helical-cut
- Material: Steel
- Manufacturer Code: 605482421307
- Compatibility: Blade 270 class helicopters
- Compatibility: Blade 300 class helicopters
- Compatibility: Blade 360 class helicopters
- Compatibility: Blade 450 class helicopters
- Category: Spares and Upgrades
- Application: Motor pinion for helicopter drivetrain
- Purpose: Maintenance spare, replacement during drivetrain overhauls
Overview
The Blade BLH5231 11T Helical Steel Pinion is an essential maintenance spare and upgrade component for Blade helicopter platforms across their 270, 300, 360 and 450 class models. This robust motor pinion features precision engineering with an 11-tooth helical-cut design that ensures smooth, efficient power transfer during flight operations. Whether you're an experienced RC helicopter enthusiast in the UK or someone discovering the world of RC aviation for the first time, having quality replacement parts on hand is crucial for keeping your aircraft in peak condition and minimising downtime between flights.
Designed specifically for routine maintenance, drivetrain overhauls and emergency replacements, the BLH5231 is the genuine Blade spare part that delivers the reliability and precision fit you need. The helical profile of this pinion gear is engineered to achieve precise gear mesh alignment, which translates to smoother power delivery and reduced vibration during normal flying operations. This isn't just a generic aftermarket pinion—it's an authorised Blade component built to exacting standards, making it the trusted choice for RC helicopter pilots who demand quality and performance consistency.
RC Model Shop stocks this genuine Blade spare part in the UK, ready to ship to your door. Whether you're building up a spare parts kit, replacing a worn component, or upgrading your helicopter's drivetrain during a full rebuild, the BLH5231 is an investment in keeping your Blade aircraft flying smoothly and reliably for years to come.
Key Features
- 11-Tooth Helical-Cut Design — The helical profile ensures precise gear mesh and smooth power transfer, reducing vibration and noise during flight whilst improving overall drivetrain efficiency compared to standard straight-cut pinions.
- Robust Steel Construction — Made from hardened steel, this pinion is built to withstand the stresses of repeated flight operations, training flights and aggressive flying styles, ensuring longevity and reliability in demanding conditions.
- Genuine Blade Component — As an authorised OEM part from Blade, this pinion is manufactured to exact specifications and guaranteed to fit perfectly in your helicopter's motor assembly without modifications or adjustments.
- Multi-Model Compatibility — This single part fits across the entire Blade Fusion range including the 270, 300, 360 and 450 class helicopters, making it a versatile spare to keep in your RC workshop or flying field kit.
- Essential Maintenance Spare — Pinion gears are subject to wear over time due to constant engagement with the main gear; having a replacement on hand means you can perform preventative maintenance and avoid being grounded during flying season.
- Smooth Power Delivery — The helical-cut teeth profile is specifically engineered to provide smooth engagement and disengagement with the main gear, resulting in cleaner throttle response and better flight characteristics.
Technical Performance
The Blade BLH5231 represents the pinnacle of precision engineering for helicopter drivetrain components. The 11-tooth helical steel pinion is manufactured to exacting tolerances that ensure perfect gear mesh alignment with your helicopter's main gear assembly. The helical cutting profile is not merely aesthetic—it's a functional design that distributes load across multiple teeth simultaneously, reducing stress concentration and extending component lifespan. The steel material selection ensures resistance to wear and deformation under the sustained rotational forces experienced during helicopter flight operations. Whether you're flying freestyle, training, or performing 3D aerobatic manoeuvres, the precision engineering of this pinion ensures reliable power transmission and smooth motor responsiveness. The robustness of steel construction means this component can handle thousands of flight cycles before requiring replacement, making it an economical choice for serious RC helicopter pilots in the UK who fly regularly and demand consistent performance from their equipment.
What's in the Box
- 1x Blade BLH5231 11T Helical Steel Pinion
Frequently Asked Questions
- Which Blade helicopter models is the BLH5231 compatible with? — The BLH5231 is designed for use across the entire Blade Fusion helicopter range, including the 270 class, 300 class, 360 class and 450 class models. It is listed as a compatible option part for all these platforms, making it an extremely versatile spare to keep on hand.
- How often should I replace the pinion gear on my Blade helicopter? — Pinion gears experience wear during normal flight operations as they constantly engage and disengage with the main gear. The frequency of replacement depends on your flying intensity and style, but having a spare on hand ensures you can perform preventative maintenance and avoid downtime. Regular inspection during maintenance checks will help you determine when replacement is necessary.
- What is the advantage of a helical-cut pinion over a standard straight-cut design? — Helical-cut pinions like the BLH5231 distribute load more evenly across multiple teeth simultaneously, resulting in smoother power transfer, reduced vibration, quieter operation and less stress on the drivetrain components. This engineering approach results in improved flight smoothness and better overall helicopter responsiveness during flight manoeuvres.
- Is the BLH5231 a genuine Blade part or a third-party replacement? — The BLH5231 is a genuine Blade original equipment manufacturer (OEM) component, manufactured by Blade to exact specifications. This ensures perfect fitment in your helicopter's motor assembly and guarantees the performance and reliability standards you expect from Blade products.
- Why should I keep spare pinion gears in my RC flying kit? — Pinion gears are wearing components that gradually degrade during normal flight operations. Keeping genuine Blade spares on hand means you can perform timely maintenance without waiting for parts to arrive, ensuring your helicopter is always ready to fly and avoiding frustrating downtime during flying season.
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 Blade BLH 11T Helical Steel Pinion: 270, 300, 360, 450 Z-BLH5231 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.
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.
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- 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.
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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.
