18T HD Mod1 Safe D Pinion Gear for RC Cars Beefy Heavy Duty Steel With Wide Tooth Profile Replacement Part ARA310965 for Extreme Off Road Rigs High Torque Durable Precision Machined Pinion Gear for Long Lasting Performance
✔️ Heavy-duty steel, 18T Mod1 Safe-D, 1x gear, 5mm shaft, D-hole
This tough steel 18T Mod1 Safe-D pinion gear is built for extreme RC driving. It’s designed for long-lasting performance in off-road rigs and high-torque setups, with a D-shaped hole to lock onto the motor shaft and prevent drive loss if the set-screw backs out.
✅ Material: heavy-duty steel for long-lasting performance in extreme RC conditions
✅ Wide tooth profile for smooth, precise meshing with the spur gear
✅ D-shaped hole matches 5mm motor shaft to prevent drive loss
✅ Includes set screw and E-clip for secure mounting
💡 What is a pinion gear used for in RC car drive trains and how does Safe-D help prevent drive loss? Pinion gears transfer motor torque to the drivetrain and influence top speed and torque handling.
- Optimizes torque transfer by meshing with the spur gear for smooth power delivery
- D-shaped hole locks to motor shaft so drive isn't lost if the set screw backs out
- Steel construction handles high-torque use in rough off-road runs
- Designed for 5mm shafts and Mod1 tooth form for reliable compatibility