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Home / XURUYI / Remote Controlled Vehicles & Parts
Steam Engine Kit, Mini Brass Gear Reducer for Steam Engine Internal Combustion Engine Model, Physics Science Experiment for Adult in Saudi Arabia

H4 Engine with Gearbox

SAR 786
Brand
XURUYI
Weight
259 g
– 1 +

Special Features

  • ⚙️【High-Precision Brass Construction】Made from solid brass with a 5 mm shaft diameter, this 3.2:1 gear reducer ensures stable torque conversion and reliable performance. Its compact 6.8 × 5.8 × 4.8 cm size integrates perfectly with steam engines, combustion setups, and mechanical displays.
  • 🔩【Dual Pulley & Ratchet System】Features two independent brass pulleys and a ratchet buckle for adjustable power transmission. Great for upgrading M12-compatible engines or adding mechanical realism to DIY builds and classroom demonstrations.
  • ✨【Industrial-Style Design】The polished brass housing and detailed inner gears offer both functional precision and decorative appeal. Perfect for enhancing miniature engines, steamboats, or collectible mechanical models.
  • 🧰【Easy Mounting & Broad Compatibility】Pre-drilled mounting points and a 5 mm shaft allow quick installation into most 12 mm-scale engines. Includes illustrated assembly instructions, suitable for enthusiasts aged 15 and above.
  • 🎁【Complete Hobby Kit】Comes safely boxed (approx. 350 g total) with 1 brass reducer, 1 ratchet buckle, and a manual. Ideal for STEM learning, retro engineering projects, or as a unique mechanical gift.

Description

Specifications:

.Color: As Shown
.Material: Brass
.Item No.: P90
.Shaft Diameter: 5mm
.Gear Ratio: 3.2:1
.Product Dimensions: 6.8 x 5.8 x 4.8cm
.Product Weight: 200g
.Package Dimensions: 10 x 10 x 10cm
.Package Weight: 350g
.Packing: Box

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