- Product Type: Pinion Gear
- Tooth Count: 12T
- Module Specification: 0.5M
- Compatible Models: B450, B400, 200SRX, 200 S
- Manufacturer: BLH
- Part Number: Z-BLH2605
- Component Type: Motor drivetrain component for RC helicopters
- Application: Main rotor power transmission
Overview
The BLH Pinion Gear, 12T, 0.5M is an essential replacement component for RC helicopter enthusiasts in the UK who demand reliable performance and durability. This precision-engineered pinion gear is specifically designed to work seamlessly with popular BLH helicopter models including the B450, B400, 200SRX, and 200 S, making it an ideal spare part for those who regularly maintain and upgrade their RC helicopters. Whether you're a dedicated competitor looking to keep your helicopter in peak condition or a weekend flyer who wants to ensure maximum flight time and reliability, this pinion gear is a must-have component in your spare parts collection.
Pinion gears are critical drivetrain components in RC helicopters that directly impact power transmission from the motor to the main rotor system. When your existing pinion gear becomes worn, damaged, or requires replacement after regular maintenance cycles, having a genuine OEM replacement like this BLH component ensures your helicopter continues to operate at the manufacturer's intended specifications. The 12-tooth configuration and 0.5M module sizing have been precisely specified by BLH to deliver the correct gear ratio and meshing performance for these specific helicopter models, ensuring smooth, reliable operation without excessive wear or noise.
At RC Model Shop, we stock genuine BLH spare parts and accessories for RC helicopters throughout the UK. Whether you're upgrading your helicopter setup or simply maintaining your equipment to the highest standards, this pinion gear represents excellent value for money and peace of mind knowing you're installing a factory-specification component that will keep your RC helicopter flying at its best.
Key Features
- 12-Tooth Configuration — The 12-tooth design is precision-engineered specifically for the B450, B400, 200SRX, and 200 S helicopter models, ensuring correct gear meshing and optimal power transmission from the motor to the rotor system without binding or excessive backlash.
- 0.5M Module Specification — The 0.5M module rating indicates the precise pitch and tooth profile of this gear, which must match your helicopter's existing drivetrain components to function correctly and prevent damage to other gears in the transmission.
- Genuine OEM Component — As an original equipment manufacturer part from BLH, this pinion gear meets the exact specifications and quality standards set by the manufacturer, guaranteeing compatibility and performance.
- Essential Spare Part — Pinion gears are subject to wear during normal flight operations and benefit from regular replacement as part of a comprehensive maintenance schedule, making this an essential spare part to keep on hand.
- Direct Replacement — This gear is designed as a direct replacement for the original pinion gear in your helicopter, requiring no modifications, adaptations, or additional engineering to install correctly.
Technical Performance
The BLH Pinion Gear, 12T, 0.5M represents precision engineering at the component level for serious RC helicopter enthusiasts. The 12-tooth design combined with the 0.5M module specification creates a specific gear ratio that has been carefully engineered by BLH to deliver optimal power transmission efficiency whilst maintaining smooth, quiet operation. This pinion gear interfaces directly with the main transmission system in your B450, B400, 200SRX, or 200 S helicopter, converting motor rotation into the controlled input for your main rotor head. The 0.5M module ensures that the tooth pitch and profile perfectly match the mating gears in your helicopter's drivetrain, which is essential for preventing premature wear, reducing noise generation during flight, and maintaining the precise synchronisation required for stable helicopter control. In RC helicopter applications, gear quality and precise specification adherence are absolutely critical because even minor deviations in tooth profile or pitch can result in performance degradation, increased vibration, or catastrophic drivetrain failure during flight. The genuine OEM specification of this component guarantees that it will perform identically to the original gear it replaces, maintaining the engineering integrity of your helicopter's power transmission system.
What's in the Box
- 1 × BLH Pinion Gear, 12T, 0.5M
Frequently Asked Questions
- Why would I need to replace my RC helicopter's pinion gear? — Pinion gears in RC helicopters experience constant rotational stress during flight operations and gradually wear over time with regular use. Teeth can become rounded, chipped, or damaged from impact, causing poor meshing with mating gears, increased noise, vibration, and ultimately drivetrain failure. Replacing your pinion gear as part of regular maintenance keeps your helicopter performing at peak efficiency and prevents more expensive drivetrain damage.
- Is this compatible with my BLH helicopter? — This pinion gear is specifically designed for BLH models B450, B400, 200SRX, and 200 S. Before purchasing, verify that your helicopter model matches one of these four options, as using an incompatible gear will result in poor performance and potential damage to your drivetrain.
- How often should I replace my helicopter's pinion gear? — Replacement frequency depends on flight time, maintenance habits, and flying conditions. Regular inspection during maintenance cycles is recommended. If you notice increased noise, vibration, or sluggish responsiveness, those are signs your pinion gear may need replacement. Many serious RC helicopter pilots replace gears during annual maintenance regardless of visible wear to maintain peak performance.
- What tools do I need to install this pinion gear? — Installation requirements depend on your specific helicopter model's design. Generally, you'll need basic hobby tools including hex keys, screwdrivers, and potentially a gear puller to remove the old gear. Consult your helicopter's service manual for detailed installation instructions specific to your model.
- Is this a genuine BLH part? — Yes, this is an original equipment manufacturer component supplied through authorised retailers like RC Model Shop. Genuine OEM parts ensure perfect compatibility and performance compared to aftermarket alternatives.
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 Pinion Gear, 12T, 0.5M: B450, B400, 200SRX, 200 S Z-BLH2605 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.
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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.
