🎉Black Friday Promotion! Buy now and enjoy up to 10% off. Shop Now!
🎉Black Friday Promotion! Buy now and enjoy up to 10% off. Shop Now!
Sale ends in
🎉Black Friday Promotion! Buy now and enjoy up to 10% off. Shop Now!
Sale ends in
icon
icon
Search

P90 Brass Gear Reducer 3.2:1 Miniature Gearbox for M12 Steam Gas Engine Model Upgrade

( reviews)
$139.99 USD
products.product_details.shipping_policy_html
1 / 6

P90 Brass Gear Reducer 3.2:1 Miniature Gearbox for M12 Steam Gas Engine Model Upgrade

220131030
( reviews)
$139.99 USD
products.product_details.shipping_policy_html
Body Scrub included for the next orders!
Share: 
Our customer say
avatar
avatar
avatar
avatar
avatar
avatar
advertising image Delivery
Standard shipping: US$4 (7-10 Days)
FREE on orders US$49+
Express shipping: US$8 (2-4 Days)
FREE on orders US$100+
advertising image Free Return & Exchange
Learn More
advertising image Our 60-Day Fit Guarantee, Free Exchange & No-Hassle Returns
advertising image Shipping from US facilities
advertising image Your purchase makes a difference
When you order today, we'll donate to help women succeed through Bottomless Closet.

P90 Brass Gear Reducer 3.2:1 Miniature Gearbox for M12 Steam Gas Engine Model Upgrade

Hero Section: Master Your Engine's Power
High RPMs are thrilling, but torque is what gets the work done. The P90 Gear Reducer is the missing link between your high-speed engine and your mechanical accessories. Crafted entirely from brass, this miniature gearbox transforms the raw speed of your steam or internal combustion engine into usable, low-speed power. Whether you are upgrading an M12 engine or building a custom workshop display, the P90 adds a layer of mechanical sophistication and industrial realism that takes your model to the next level.

Why Choose the P90 Gear Reducer?

  • Torque Multiplier: With a precise 3.2:1 gear ratio, this unit slows down your engine's output speed while significantly increasing torque. This makes it perfect for driving water pumps, generators, or conveyor belts that require steady, powerful rotation rather than high speed.
  • Solid Brass Aesthetics: Encased in a beautifully machined brass shell, the P90 exudes a vintage industrial charm. It isn't just a functional part; it’s a visual upgrade that develops a stunning patina over time, matching perfectly with retro brass engines.
  • Dual Output Versatility: The output shaft features two separate pulleys. This allows you to drive multiple accessories simultaneously or gives you flexibility in belt alignment, making it a versatile hub for your desktop factory.
  • Smooth Operation: Inside the shell, precision brass gears mesh perfectly to ensure quiet, smooth transmission of power without the gritty feel of cheaper plastic alternatives.

Technical Highlights: Engineering Simplified

  • 3.2:1 Reduction Logic: For every 3.2 rotations of your engine's flywheel, the output shaft of the P90 turns once. This reduction is ideal for taming high-revving engines like the M12, making their motion more observable and their power more usable.
  • Universal 5mm Shaft: The input/output shafts are a standard 5mm diameter, making it compatible with a wide range of model pulleys, couplings, and accessories beyond just the M12 series.
  • Compact Durability: Despite its small footprint (6.8cm length), the all-metal construction gives it a substantial weight (200g), ensuring it stays planted and reduces vibration in your setup.

Specifications

  • Item No.: P90
  • Material: Brass
  • Gear Ratio: 3.2:1 (Speed Reduction)
  • Shaft Diameter: 5mm
  • Dimensions: 6.8 x 5.8 x 4.8cm
  • Weight: 200g
  • Pulley Configuration: Dual Groove Output
  • Compatibility: Ideal for M12 Engine, compatible with various Steam/Gas engines

Usage Scenario: The Miniature Power Plant
Imagine you have a high-speed M12 gas engine. It runs great, but it spins too fast to drive your miniature water pump effectively. You install the P90 Gear Reducer in between. You connect the engine to the input pulley. Now, as the engine screams at 3000 RPM, the P90 steps it down to a steady, powerful rhythm, driving the pump effortlessly. The brass gears whir softly, adding a complex mechanical soundscape to your display.

Important Tips from the Workshop

  • Lubrication is Key: Metal-on-metal gears require lubrication. Apply a small amount of high-quality gear grease (lithium or silicone-based) to the internal gears periodically to ensure smooth operation and prevent wear.
  • Belt Tension: When connecting belts to the input and output pulleys, ensure they are tight enough to grip but not so tight that they pull the gearbox out of alignment or strain the bearings.
  • Mounting: The P90 has a flat base. For the best performance, secure it firmly to your wooden or metal baseplate using screws or strong adhesive to handle the torque.
  • Note: While the package content lists "Engine" due to standard template text, please note this product is only the Gearbox. The engine is sold separately.

Customer Support
Building a complex transmission system? If you need advice on belt sizing, mounting, or compatibility, our expert team is ready to assist. Contact us at service@helloworld7.com.

P90 Brass Gear Reducer 3.2:1 Miniature Gearbox for M12 Steam Gas Engine Model Upgrade P90 Brass Gear Reducer 3.2:1 Miniature Gearbox for M12 Steam Gas Engine Model Upgrade P90 Brass Gear Reducer 3.2:1 Miniature Gearbox for M12 Steam Gas Engine Model Upgrade P90 Brass Gear Reducer 3.2:1 Miniature Gearbox for M12 Steam Gas Engine Model Upgrade P90 Brass Gear Reducer 3.2:1 Miniature Gearbox for M12 Steam Gas Engine Model Upgrade P90 Brass Gear Reducer 3.2:1 Miniature Gearbox for M12 Steam Gas Engine Model Upgrade