SPIDER Automation | 108mm Steel Motor Pulley | H-Type Installation, 17mm Bore for Compatible Electric Vehicle Motors
Product Overview
The 108mm Steel Motor Pulley is a mechanical drivetrain component designed for compatible electric vehicle motor assemblies. It is specified for use with MY1020ZXFH, MY1122ZXF, MY1020ZXF and BM1418ZXF motor models and features an H-type installation profile with a 17mm inner installation bore.
The pulley is manufactured from steel and supplied with a black finish. Its outer diameter is listed as 102–108mm, making it suitable for drivetrain designs that accommodate this dimensional range and the corresponding shaft mounting arrangement.
A motor pulley transfers rotary motion through a compatible belt or other matching drive element. Correct selection depends on the shaft interface, pulley profile and transmission element used in the complete drivetrain.
Technical Features & Functional Characteristics
- Steel Pulley Construction: Provides a metal drivetrain component for transferring rotary motion in compatible motor-driven systems.
- H-Type Installation Design: Intended for motor shaft arrangements using the corresponding H-type installation interface.
- 17mm Inner Installation Bore: Provides the specified bore diameter for mounting on compatible motor shafts.
- Large-Diameter Pulley Profile: The listed 102–108mm outer diameter supports drivetrain layouts designed around this pulley size.
- Black Exterior Finish: Supplied in black for integration into compatible mechanical assemblies.
- Specified Motor Compatibility: Intended for MY1020ZXFH, MY1122ZXF, MY1020ZXF and BM1418ZXF motor models.
- Drivetrain Integration: Can be incorporated into compatible belt-driven electric vehicle transmission arrangements.
Motor Compatibility & Mechanical Installation
This pulley is listed for the following motor models:
- MY1020ZXFH
- MY1122ZXF
- MY1020ZXF
- BM1418ZXF
The specified 17mm installation bore and H-type profile are important mechanical compatibility references. Before fitting the pulley, the motor shaft dimensions, mounting profile and fastening arrangement must match the pulley interface. Motor model designation alone should not replace dimensional compatibility checks, particularly where motor variants use different shaft configurations.
Drivetrain & Transmission Applications
A motor pulley forms part of a mechanical transmission system by transferring rotary motion to a compatible belt or other matching drive element. The pulley diameter and the diameter of its mating pulley influence the resulting transmission ratio, output speed and torque relationship.
The 102–108mm outer diameter range can be used as a design reference when selecting a matching drivetrain component. The belt profile, groove geometry, width and mating pulley must also be compatible for proper engagement and operation.
Applications
- Electric Vehicle Drivetrains: For compatible motor-driven transmission systems in electric vehicle projects.
- Electric Scooter Projects: For drivetrain assemblies using a compatible motor shaft and belt transmission arrangement.
- Electric Bicycle Conversions: For custom e-bike drive systems where the motor mounting interface and pulley geometry match.
- Electric Tricycle Systems: For compatible motor-to-wheel or intermediate transmission arrangements.
- Motor Replacement & Maintenance: For replacing a pulley in compatible MY1020ZXFH, MY1122ZXF, MY1020ZXF or BM1418ZXF motor assemblies.
- DIY Electric Vehicle Builds: For custom drivetrain development using matching motor and transmission components.
- Mechanical Prototyping: For experimental belt-drive systems requiring a steel pulley with the specified installation interface.
Package Contents
| Quantity | Component |
|---|---|
| 1 | Steel Motor Pulley, 108mm Designation, H-Type Installation, 17mm Inner Bore |
Product Specifications
| Parameter | Specification |
|---|---|
| Product Category | Motor Pulley / Drivetrain Transmission Component |
| Item Type | Pulley for Motor |
| Material | Steel |
| Colour | Black |
| Installation Type | H-Type installation profile |
| Inner Installation Bore | 17mm |
| Outer Diameter | 102–108mm |
| Nominal Product Designation | 108mm Pulley |
| Compatible Motor Models | MY1020ZXFH, MY1122ZXF, MY1020ZXF, BM1418ZXF |
| Transmission Application | Compatible belt-drive and motor transmission assemblies |
| Package Quantity | 1 pulley |
Installation & Operating Recommendations
Correct shaft fitment, pulley alignment and transmission-element compatibility are essential for reliable drivetrain operation. Match the pulley to the motor shaft and the intended belt-drive arrangement before installation.
- Confirm Shaft Compatibility: Check that the motor shaft matches the 17mm installation bore and H-type mounting profile.
- Verify Motor Variant: Match the pulley with the exact motor model and shaft configuration rather than relying only on the motor family name.
- Match the Belt Profile: Confirm the belt type, width, pitch and contact profile against the pulley and mating transmission component.
- Check Pulley Alignment: Align the motor pulley with the mating pulley to reduce belt tracking problems and uneven wear.
- Secure the Mounting: Use the correct fastening arrangement for the H-type interface and ensure the pulley is firmly retained on the shaft.
- Check Belt Tension: Set belt tension according to the belt and drivetrain manufacturer’s recommendations. Excessive tension can increase shaft and bearing loads.
- Inspect Before Operation: Rotate the assembly manually to check for interference, wobble or misalignment before powering the motor.
- Perform an Initial Test: Run the drivetrain at low speed first and check for abnormal vibration, belt movement or noise.
