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Two silver aluminium flange couplings 12mm bore 18mm body 32mm base with four mounting screws

Unique-Bargains

Unique-Bargains 12mm Flange Coupling 2PCS

SKU CH-KVD2-YKTR8

Rigid aluminium flange coupling with 12 mm bore, 18 mm outer diameter and 26 mm hole spacing for model motor shafts

  • Rigid brass joint keeps shafts aligned
  • 12 mm bore fits standard motor shafts
  • 26 mm bolt pattern simplifies mounting
  • Aluminium alloy body resists corrosion
  • Two couplings with screws ready to install

12 mm Rigid Flange Coupling Pair

Two aluminium-alloy flange couplings join 12 mm motor shafts in RC aircraft, boats and custom mechanical drives. Each piece measures 13 mm total height with an 18 mm cylinder and a 32 mm mounting base. Supplied as a pack of two with four fastening screws.

Installation Uses M4 Screws On 26 mm Centers

Fasten the coupling to the shaft with the included M4 screws; a hex wrench is not supplied. The rigid brass joint offers no misalignment compensation, so shafts must be accurately aligned before tightening. Over-torquing the small screws can strip the threads in the soft alloy.

Suits Hobbyists Building Direct-Drive RC Models

Builders needing a compact, zero-backlash connection for 12 mm shafts on planes, boats or DIY gear trains will find the dimensions match. Users requiring flexible or bellows couplings to absorb vibration or angular error should select a different coupling style.

Highlights

  • Rigid brass joint keeps shafts aligned
  • 12 mm bore fits standard motor shafts
  • 26 mm bolt pattern simplifies mounting
  • Aluminium alloy body resists corrosion
  • Two couplings with screws ready to install

Specifications

BrandUnique Bargains

Questions about this item

How can I confirm the 12mm flange coupling is correctly aligned after mounting it on the motor shaft?

After tightening the four M4 screws, rotate the shaft by hand; it should turn smoothly with no wobble at the 18 mm cylinder diameter, indicating the 26 mm hole pattern is properly seated.

What comes in the package and which tool must I supply myself?

The box contains two 12 mm flange couplings and four M4 fastening screws; you need to provide your own M4 hex wrench for installation.

Which coupling dimensions should I match to my motor shaft and mounting plate?

Choose this version when your motor shaft is 12 mm, the mounting holes are spaced 26 mm apart, and the 32 mm base diameter fits your plate.

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