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Copper Spring Universal Joint 4x2.3/4x3.2/4x3/3x2.3/3x3.2/3x3/4x4mm Couplings for Brush Electric RC Boat

-- Description --
  • This spring type universal joint is suitable for brush motors,such as 390/380/370/280/260/280/180 Brush motors, it doesn`t fit 550 775 or higher torque motors.
    it is better than hard coupling for installation, more flexible rotation and less noise.

    Please Note: The elastic connector is different from the hard connector. It has a service strength. It is easy to be damaged if it exceeds the elastic strength, especially when it stops or advances rapidly.
-- Specification & Features --
  • * Material: copper
    * Made by welding
    * screws: use 3mm set screws to fix
    * Suitable for: brushed motors smaller than 550
    * Length: 32mm
    * Outer Diameter: 9mm
    * Aperture inner diameter: 4mmx2.3mm/4mmx3.2mm/4mmx3mm/3mmx2.3mm/3mmx3.2mm/3mmx3mm/4mmx4mm (Optional)
-- Item Contains --
  • 1 piece Copper Spring Universal Joint as you purhcased
   

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