20T Alloy Timing Pulley for 1/12 Electric RC Cars
Precision CNC Machined from 7075 Aluminum Alloy
For high-performance RC racing, every component matters. Our 20-tooth timing pulley is engineered specifically for 1/12 scale electric RC cars, delivering precision, strength, and reliability at an affordable price point.
We don’t just sell parts—we manufacture them in-house with attention to detail, using high-grade materials and advanced CNC processes to ensure quality and consistency.
Why We Use 7075 Alloy for Our Timing Pulleys
Not all aluminum is created equal. We choose 7075 aluminum alloy bar stock—the same material used in aerospace and motorsports—for its:
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Exceptional strength-to-weight ratio
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Superior wear resistance
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Excellent machinability
This alloy is ideal for high-torque RC applications, where durability and performance are critical.
Step-by-Step Manufacturing Process
We apply advanced machining techniques to create a precise and durable RC car pulley. Here's how it's made:
1. CNC Turning for Initial Shaping
We begin by CNC turning the raw 7075 bar to achieve the correct outer and inner dimensions. This process ensures tight tolerances from the start.
2. Gear Cutting for Tooth Precision
Using a dedicated gear cutting machine, we cut 20 evenly spaced teeth to match the required pitch and spacing for electric RC transmissions. This step guarantees smooth, synchronized belt movement.
3. CNC Milling for Structural Details
The other end of the pulley is shaped using multi-axis CNC milling, creating mounting features and detailing that contribute to a perfect fit and optimal function in your RC drivetrain.
4. Deburring with Tumbling Machine
After machining, the pulley is processed in a tumbling machine to remove all burrs and sharp edges. This step not only improves safety and aesthetics, but also prepares the surface for finishing.
Finishing: Hard Anodized for Performance and Protection
We finish each pulley with real hard anodizing, which enhances:
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Surface hardness
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Corrosion resistance
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Overall durability under stress
True hard anodizing results in a champagne color—not black, red, or other colors. The finish you see in our product photo is the authentic hard-anodized result. There is only one color, and that’s by design.
Precision You Can Count On
Every pulley is made to strict tolerance standards, with a dimensional precision of ±0.02mm. This ensures:
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Minimal play or vibration
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Long-term gear mesh accuracy
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Perfect fit with belts and shafts
Whether you're building a race-ready chassis or upgrading an existing RC car, our CNC-machined 20T pulley delivers pro-level performance at an accessible price.
Final Thoughts: Engineered for Serious RC Enthusiasts
Our timing pulleys are built for real-world racing conditions, not just display. Using premium materials, modern machining techniques, and honest finishing, we provide products you can trust—because we’re racers and builders too.
Ready to Upgrade Your RC Drivetrain?
Explore our full range of CNC RC gears, pulleys, and driveline components—engineered for precision and built to perform.
2021/3/4
