SPIDER Automation | 48P 16T RC Motor Pinion Gear | 3.17mm Bore for 1/10 Scale RC Cars
The SPIDER Automation 48P 16T Pinion Gear is a motor-side drive gear intended for compatible 1/10 scale radio-controlled model car transmissions. Its 16-tooth configuration and 48-pitch gear profile provide a gearing option for adjusting the relationship between motor speed and drivetrain output.
The pinion features a 3.17mm bore and metal construction. It is intended for use with a compatible motor shaft and a matching 48P spur gear. Correct bore fitment, gear mesh and shaft retention are important for reliable drivetrain operation.
Product Overview
A pinion gear is mounted on the motor shaft and meshes with a larger spur gear to transfer rotational motion through an RC vehicle’s drivetrain. Changing the pinion tooth count changes the gear ratio and can affect acceleration, motor load and vehicle speed.
This 48P 16T pinion gear is designed for compatible 48-pitch gear systems commonly used in model vehicle transmissions. It is suitable for gearing adjustments and replacement applications where the motor shaft and mating spur gear match the required specifications.
Technical Features & Functional Characteristics
- 48-Pitch Gear Profile: Intended to mesh with a compatible 48P spur gear.
- 16-Tooth Pinion: Provides a defined motor-side tooth count for drivetrain ratio selection.
- 3.17mm Bore: Provides the central mounting opening for a compatible motor shaft.
- Metal Construction: Provides a rigid gear structure for mechanical power transmission.
- Compact RC Component: Suitable for space-conscious motor and gearbox arrangements in compatible model cars.
- Gearing Adjustment: Allows users to select a different pinion tooth count when tuning a compatible RC drivetrain.
Gear Ratio & RC Drivetrain Selection
The pinion works with a matching spur gear to establish the motor-to-drivetrain reduction ratio. The ratio is determined by dividing the spur gear tooth count by the pinion tooth count. A smaller pinion generally produces a higher reduction ratio, while a larger pinion generally produces a lower reduction ratio when paired with the same spur gear.
Changing pinion size can influence acceleration, motor temperature, current demand and maximum vehicle speed. Gear selection should therefore account for the motor, battery, controller, spur gear and operating conditions rather than tooth count alone.
Applications
This pinion gear is intended for compatible 48P gear systems used in RC model vehicles and related mechanical projects.
- 1/10 Scale RC Cars: For compatible model cars using a 48P pinion and spur gear combination.
- RC Drivetrain Repairs: For replacing a worn or damaged 48P 16T motor pinion.
- RC Gear Ratio Tuning: For adjusting the motor-to-spur gear ratio in a compatible transmission.
- Electric RC Vehicles: For motor-driven model vehicles designed around a matching 48-pitch gear system.
- RC Workshop Builds: For assembling and maintaining compatible model car drivetrain systems.
- Educational Model Projects: For demonstrating gear engagement, reduction ratios and mechanical power transmission.
Package Includes
- 1 × 48P 16T Steel Pinion Gear – 3.17mm Bore
Product Specifications
| Parameter | Specification |
|---|---|
| Product Type | RC Motor Pinion Gear |
| Gear Pitch | 48P (48 Pitch) |
| Number of Teeth | 16T |
| Material | Metal (Steel stated in package description) |
| Pinion Bore Diameter | 3.17mm |
| Referenced Motor Shaft Diameter | 2.70mm |
| Intended Vehicle Scale | 1/10 Scale RC Cars |
| Quantity | 1 Piece |
Installation & Operating Recommendations
Correct motor-shaft fitment and gear mesh are essential for smooth power transmission. Before installing the pinion, check the motor shaft, mating spur gear and retention arrangement for compatibility.
- Check Shaft Compatibility: Compare the 3.17mm pinion bore with the actual motor shaft. The referenced 2.70mm shaft diameter is smaller than the bore, so direct interference fit should not be assumed.
- Use a Suitable Retention Method: Confirm whether the motor and pinion arrangement requires a compatible sleeve, adapter or other retention method. No set-screw or keyway arrangement is specified.
- Match the Spur Gear: Use a mating 48P spur gear to maintain compatible tooth geometry.
- Set Correct Gear Mesh: Adjust the pinion-to-spur gear spacing to avoid excessive tightness or backlash.
- Secure the Pinion: Ensure the gear is retained securely on the motor shaft before applying power.
- Check Drivetrain Movement: Rotate the drivetrain manually, where practical, to check for binding or uneven gear engagement.
- Monitor Motor Load: After changing the gear ratio, monitor motor and controller temperatures under normal operating conditions.
