SPIDER Automation | MY1016Z E-Bike Motor Replacement Pinion Gear | 9T 410 Chain Drive
The SPIDER Automation MY1016Z E-Bike Motor Pinion Gear is a replacement drive gear designed for the MY1016Z electric motor. Its 9-tooth configuration provides the chain-engagement profile for transferring rotational movement from the motor into a compatible e-bike drivetrain.
Designed for a drivetrain using a compatible 410 chain, this pinion features a 10mm inner diameter and a compact gear profile. It is suitable for replacement and maintenance applications where the motor shaft interface and chain engagement geometry match the existing assembly.
Product Overview & Functional Design
A motor pinion is the drive-side gear that engages with the chain to transmit rotational movement from an electric motor to the connected drivetrain. The tooth count influences the transmission ratio when paired with the driven sprocket, making correct tooth-count selection important when replacing an existing gear.
This 9T pinion is intended for the MY1016Z motor and a compatible 410 chain. Its central bore provides the shaft interface, so the motor shaft dimensions and retention arrangement must match the pinion before installation.
Technical Features & Functional Characteristics
- MY1016Z Motor Application: Designed for use as a replacement pinion in compatible MY1016Z motor assemblies.
- 9-Tooth Configuration: Provides the motor-side gear profile for chain-driven power transmission.
- 410 Chain Designation: Intended for a matching 410 chain drivetrain.
- Central Shaft Bore: Features a 10mm inner diameter for the motor-side mounting interface.
- Compact Gear Construction: Designed for integration into an e-bike motor drivetrain.
- Replacement and Maintenance: Suitable for replacing a worn or damaged pinion when the shaft and chain interfaces match.
Applications
This pinion is intended for compatible MY1016Z motor assemblies and chain-driven electric-bike transmission systems. Suitable applications include:
- MY1016Z E-Bike Motor Repair: Replacement of a worn or damaged motor-side pinion.
- Electric Bike Drivetrains: Chain-driven transmission systems using a compatible MY1016Z motor and 410 chain arrangement.
- Motor-to-Chain Power Transmission: Transfers rotational movement from the motor to the connected chain drive.
- E-Bike Conversion Projects: Integration into conversion assemblies designed around the specified motor and drivetrain interfaces.
- Drivetrain Maintenance: Servicing of compatible motor pinion and chain assemblies.
- Custom Electric Drive Assemblies: Motor-driven chain transmission projects where the shaft bore and tooth profile are compatible.
Package Includes
- 1 × MY1016Z E-Bike Motor Pinion Gear – 9T
Product Specifications
| Parameter | Specification |
|---|---|
| Product Type | E-Bike Motor Pinion Gear |
| Compatible Motor | MY1016Z |
| Number of Teeth | 9T |
| Suitable Chain Designation | 410 Chain |
| Inner Diameter (ID) | 10mm |
| Outer Diameter | 41.5mm |
| Listed Circular Pitch | 11.2mm |
| Product Weight | 28g |
| Package Quantity | 1 Piece |
Installation & Operating Recommendations
Correct shaft fitment and chain engagement are essential for reliable operation. The pinion should be installed only in a compatible MY1016Z motor assembly with a matching shaft and drivetrain arrangement.
- Confirm Motor Compatibility: Use with the MY1016Z motor configuration for which the pinion is intended.
- Check Shaft Fitment: Ensure the motor shaft matches the pinion bore and the required retention arrangement.
- Match the Chain: Use a compatible 410 chain and ensure that the chain engages correctly with the pinion teeth.
- Check Gear Alignment: Align the pinion with the driven sprocket to maintain a straight chain path.
- Set Suitable Chain Tension: Follow the drivetrain design requirements to avoid excessive loading on the chain, pinion and motor shaft.
- Secure the Pinion: Use the appropriate shaft-retention method for the motor assembly. Do not assume a keyway, set screw or press-fit arrangement without matching hardware.
- Inspect During Maintenance: Check the teeth, chain engagement and mounting security periodically for wear or loosening.




















