Shaft Coupler 3mm to 5mm

Connect a 3mm shaft to a 5mm shaft or smaller with this shaft coupler. With 2 set screws for each side, you'll get a secure connection every time.

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Last Updated: 06/14/2024





  • Shaft Coupler
  • Useful for connecting stepper motors and motors with 5mm shafts  or smaller to a 3mm rod / axle
  • Side A: 5mm Diameter
  • Side B: 3mm Diameter
  • Coupler Type: Standard
  • Material: Copper
  • Number of Set Screws: 4 total
  • Commonly used for CNCs, servo motors, stepper motors, encoders, axles, etc.
  • Total Length: 20mm
  • Total Diameter: 9mm
  • Includes:
    • 3mm to 5mm Copper Shaft Coupler
    • 4 Set Screws
    • Allen Key
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