SPIDER Automation | 48P 22T Steel Pinion Gear | 3.17mm Bore for 1/10 Scale RC Cars
Product Overview
The 48P 22T Steel Pinion Gear is a motor-drive gear intended for compatible 1/10 scale RC cars and model vehicle drivetrain systems. It features a 22-tooth configuration with a 48-pitch gear profile, designed to work with a matching 48P spur gear.
The pinion transfers rotational motion from the motor to the vehicle’s drivetrain through the meshing gear assembly. Changing the pinion tooth count can alter the overall gear ratio when used with a compatible spur gear, allowing drivetrain gearing to be configured for the requirements of the model.
The gear is supplied in black metal construction and has a stated 3.17mm bore. The supplier also references a 2.7mm motor shaft, so the mounting arrangement must account for the difference between the stated shaft and bore diameters.
Technical Features & Functional Characteristics
- 22-Tooth Gear Profile: Provides 22 teeth for a compatible RC motor pinion application.
- 48-Pitch Specification: Designed to mesh with a matching 48P spur gear. The pinion and spur gear must use the same pitch standard.
- 3.17mm Internal Bore: Features a 3.17mm bore for a matching motor shaft or suitable mounting adapter.
- Metal Construction: Made from metal, with the package description identifying the product as a steel pinion gear.
- Black Colour: Supplied with a black external appearance.
- Gear Ratio Adjustment: The 22T pinion can be used to configure the final gear ratio when paired with a compatible spur gear.
- Compact RC Drivetrain Component: Intended for small model vehicle motor and transmission assemblies.
Gear Compatibility & Transmission Function
A pinion gear is mounted on the motor shaft and drives the mating spur gear. The tooth count of both gears determines their gear ratio. For this 22T pinion, the matching spur gear must have a compatible 48P tooth profile to ensure proper gear engagement.
The pinion tooth count influences the balance between motor speed and torque delivered through the gear reduction system. The final result depends on the spur gear tooth count, motor characteristics, vehicle setup and other drivetrain components.
Shaft fitment is important: the stated 3.17mm bore and 2.7mm motor shaft reference are different dimensions. A suitable adapter, reducer sleeve or compatible shaft arrangement may be required. Do not force the gear onto an undersized shaft.
Applications
- 1/10 Scale RC Cars: For compatible model cars using a 48P pinion-and-spur gear drivetrain.
- RC Electric Cars: For motor-driven model vehicles requiring a compatible 22T pinion gear.
- RC Drivetrain Maintenance: For replacing a worn or damaged pinion in a compatible gear assembly.
- Gear Ratio Tuning: For changing the pinion tooth count as part of a compatible motor and spur gear setup.
- RC Model Workshops: For assembly, servicing and maintenance of small electric model vehicle drivetrains.
- DIY RC Projects: For custom model vehicle builds designed around a matching 48P gear system.
- RC Mechanical Prototyping: For testing compatible small-scale motor-to-spur-gear transmission arrangements.
Package Includes
| Quantity | Component |
|---|---|
| 1 | 48P 22T Steel Pinion Gear – 3.17mm Bore |
Product Specifications
| Parameter | Specification |
|---|---|
| Product Type | RC Motor Pinion Gear |
| Gear Pitch | 48P |
| Tooth Count | 22T |
| Bore Diameter | 3.17mm |
| Referenced Motor Shaft Diameter | 2.7mm |
| Material | Metal; identified as steel in the package description |
| Colour | Black |
| Intended Vehicle Scale | 1/10 Scale RC Cars |
| Mating Gear Compatibility | Matching 48P spur gear |
| Gear Function | Motor-to-spur-gear power transmission |
| Package Quantity | 1 pinion gear |
Installation & Operating Recommendations
Correct pinion installation is important for smooth gear engagement and reliable power transmission. Match the gear pitch with the spur gear, use a suitable motor-shaft mounting arrangement and adjust the gear mesh according to the RC vehicle manufacturer’s guidance.
- Match the Gear Pitch: Use the pinion with a compatible 48P spur gear. Do not mesh it with gears using a different pitch standard.
- Check Shaft Fitment: The stated 3.17mm bore differs from the referenced 2.7mm motor shaft. Use a suitable mounting adapter or compatible shaft arrangement where required.
- Secure the Pinion: Use the motor shaft’s appropriate retention method to prevent unwanted movement during operation.
- Set Correct Gear Mesh: Adjust the pinion-to-spur engagement to avoid excessive tightness or unnecessary backlash.
- Check Gear Alignment: Keep the pinion and spur gear properly aligned across their working faces to reduce uneven tooth loading.
- Rotate Before Powered Testing: Turn the drivetrain manually to check for binding, interference and inconsistent gear engagement.
- Inspect During Maintenance: Check the pinion teeth, mating spur gear and shaft mounting for wear or loosening.
