SPIDER Automation | 25H E-Bike Motor Drive Chain for MY1016 & MY6812 | 730mm Chain Length

The SPIDER Automation 25H E-Bike Motor Drive Chain is a drivetrain component designed for compatible electric-bike assemblies using MY1016 and MY6812 motor configurations. It connects the motor-side pinion with the driven sprocket, allowing rotational movement to be transmitted through the chain-drive mechanism.

With a listed overall length of 730mm, this chain is intended for replacement, maintenance and compatible e-bike drivetrain assembly. Proper matching with the pinion and driven sprocket is important for correct chain engagement, alignment and tension.


Product Overview & Functional Design

A drive chain is responsible for transferring mechanical power between rotating drivetrain components. In an electric-bike system, the chain engages with the motor pinion and driven sprocket to transmit motor rotation through the transmission.

This chain carries the 25H designation and is identified for compatible MY1016 and MY6812 motor applications. The chain length is an important selection parameter, as the required length depends on the distance between the sprockets, their sizes and the drivetrain layout.


Technical Features & Functional Characteristics

  • 25H Chain Designation: Intended for drivetrain assemblies designed around a matching 25H chain profile.
  • MY1016 and MY6812 Applications: Identified for compatible e-bike motor configurations using these motor models.
  • 730mm Listed Length: Provides the supplied overall length for drivetrain sizing and replacement selection.
  • Mechanical Power Transmission: Transfers rotational movement between the motor-side pinion and driven sprocket.
  • Replacement Chain: Suitable for servicing or replacing a compatible chain in an existing e-bike drivetrain.
  • Drivetrain Integration: Designed to operate as part of a matching pinion, chain and sprocket assembly.

Applications

This chain is intended for compatible 25H chain-drive arrangements in electric-bike systems. Potential applications include:

  • MY1016 E-Bike Motor Drivetrains: Chain transmission assemblies using a compatible MY1016 motor-side pinion.
  • MY6812 E-Bike Motor Drivetrains: Compatible chain-drive arrangements built around the MY6812 motor.
  • Electric Bike Chain Replacement: Replacement of a worn or damaged chain when the chain profile and length match.
  • Motor-to-Sprocket Transmission: Transfers mechanical rotation from the motor pinion to the driven sprocket.
  • Custom E-Bike Builds: Chain-drive construction using compatible 25H drivetrain components.
  • Electric Bicycle Conversion Projects: Conversion assemblies designed around matching motor, pinion and sprocket interfaces.
  • Drivetrain Maintenance: Servicing of compatible electric-bike chain transmission systems.

Package Includes

  • 1 × 25H Chain for MY1016 and MY6812 Motor Applications

Product Specifications

Parameter Specification
Product Type E-Bike Drive Chain
Chain Designation 25H
Compatible Motor Applications MY1016 and MY6812
Total Length 730mm
Product Weight 125g
Package Quantity 1 Chain

Installation & Operating Recommendations

Correct chain-profile matching, length selection and alignment are essential for smooth drivetrain operation. Before installation, ensure that the chain is compatible with the motor pinion and driven sprocket used in the e-bike assembly.

  • Confirm Chain Compatibility: Match the 25H chain designation and actual chain profile with both the motor pinion and driven sprocket.
  • Check Required Length: Confirm that the listed chain length suits the distance between the sprockets and the drivetrain layout.
  • Match Both Sprockets: Ensure that the motor pinion and driven sprocket have compatible tooth profiles for the chain.
  • Maintain Chain Alignment: Keep both sprockets in the correct alignment to reduce uneven loading and chain wear.
  • Set Suitable Chain Tension: Adjust tension according to the drivetrain design. Excessive tension can increase loading on the motor shaft and bearings.
  • Check Chain Movement: Rotate the drivetrain manually after installation to check for binding, interference or irregular engagement.
  • Inspect Periodically: Check chain condition, sprocket teeth and drivetrain alignment during routine maintenance.

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