JDM-135 1/14 High-Torque 2-Speed Planetary Gearbox for RC Truck Modification
Hero Section: The Ultimate Torque Upgrade for Your 1/14 Rig
Stock gearboxes are fine for flat roads, but when you need to haul heavy loads or conquer steep inclines, you need serious reduction. The JDM-135 Planetary Gearbox is engineered for the heavy-duty RC enthusiast. Capable of pulling a staggering 100kg load, this compact transmission transforms your 1/14 scale truck or construction vehicle into a towing beast. Whether you are building a custom 8x8 dumper or a heavy-haul tractor, this gearbox provides the mechanical muscle you’ve been missing.
Why Choose the JDM-135 Gearbox?
- Massive Towing Capacity: Thanks to its robust planetary gear design, this unit can handle impact loads and pull weights up to 100kg. It is the ideal upgrade for JDM pickup trucks, hydraulic dumpers, and heavy machinery models.
- Dual-Speed Versatility: Why compromise? This gearbox features two distinct gear ratios. First gear (1:64) offers immense torque for climbing and heavy hauling, while second gear (1:16) provides the speed needed for transit.
- Compact Planetary Design: Unlike traditional bulky transmissions, the planetary gear structure packs high reduction ratios into a small footprint (6 x 5.3 x 6.6cm), making it easier to fit into tight chassis spaces during custom builds.
- Reliable Shifting: Featuring a "pull-lock" shifting mechanism without a rod, the gear engagement is positive and powerful. This reduces the risk of slipping out of gear under load, ensuring reliable power delivery when you need it most.
Technical Highlights: Engineering Deep Dive
- Gear Ratios:
- 1st Gear (Low): 1/64 – Maximizes torque multiplication for crawling and heavy lifting.
- 2nd Gear (High): 1/16 – Increases output speed for faster movement on flat terrain.
- Impact Resistance: The internal structure is designed to withstand the shock loads common in off-road RC trucking, ensuring longevity even under stress.
- DIY Friendly: Delivered as a finished, pre-assembled unit in a basic metallic color, it is ready to be painted or modified to match your specific vehicle's livery.
Specifications
- Model: JDM-135
- Type: 2-Speed Planetary Gearbox
- Scale: 1/14
- Gear Ratios: 1:64 (Low) / 1:16 (High)
- Material: Metal Internals / Hard Plastic Housing Components
- Dimensions: 6 x 5.3 x 6.6cm
- Weight: 450g
- Load Capacity: Approx. 100kg (Pulling force)
- Application: JDM Trucks, 1/14 Crawlers, Construction Vehicles
Usage Scenario: The Heavy Haul
Imagine your 1/14 scale tractor truck is hooked up to a lowboy trailer loaded with a heavy hydraulic excavator. A standard gearbox would stall on the first incline. With the JDM-135, you shift into 1st gear (1:64). The motor whirs, the torque multiplies, and the rig crawls up the slope with unstoppable force. Once you hit the flat pavement, you shift to 2nd gear and cruise to the job site.
Important Tips from the Workshop
- Motor Required: Please note this is a gearbox only. The motor is not included. You will need to select a suitable brushed or brushless motor and potentially modify the mounting holes to fit your specific chassis layout.
- Servo Setup: You will need a standard or mini servo (depending on your space) to operate the shifting mechanism. Ensure your radio transmitter has a spare channel (3-position switch recommended) for shifting.
- Lubrication: While pre-assembled, we recommend checking the internal grease and adding high-quality molybdenum or ceramic grease to the gears for smoother operation and noise reduction.
- Custom Fit: This is a modification part. Drilling or creating custom brackets may be required to fit it into non-JDM chassis (like Tamiya or Lesu).
Customer Support
Customizing a drivetrain requires precision. If you have questions about motor compatibility, mounting dimensions, or gear ratios, our technical team is here to help. Contact us at service@helloworld7.com.
Delivery
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