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  • RC Prop PA Adapter 3 Leaves 3.17mm / 5mm prop shaft AU NZ USA DE
  • RC Prop PA Adapter 3 Leaves 3.17mm / 5mm prop shaft AU NZ USA DE
  • RC Prop PA Adapter 3 Leaves 3.17mm / 5mm prop shaft AU NZ USA DE
  • RC Prop PA Adapter 3 Leaves 3.17mm / 5mm prop shaft AU NZ USA DE
  • RC Prop PA Adapter 3 Leaves 3.17mm / 5mm prop shaft AU NZ USA DE

Prop Adapter 3 Leaves 3.17mm / 5mm prop shaft - Carbonbird motor part

Shipping Weight:
25.00 Grams
Stock Remaining:

Product Description

These are our OEM 5mm - 3.17mm CarbonBird™ Prop adapters featuring 3 blades/petals/leaves to grip the shaft evenly - like a three legged stool these adapters grip evenly - With Multicopters it's critical to have a 100% perfect straight/true collet shaft to ensure the prop is rotating dead-centre.  In the event of impact the CarbonBird™ motor shaft will usually fail at the machined failpoint (small groove machined into the shaft) but if the shaft is reversed then these force can be absorbed by the Collet (this item) and it may be off centre - and is best replaced.  


Dimension & Data

  • Weight 8.2grams
  • OEM Carbonbird™ aluminium collet 
  • fits motor shaft 1/8th"  ID 3.17mm
  • OD 4.97mm
  • OD M5 threaded shaft 28mm L ; threaded section 13mm
  • Suit props of ≥ 7mm depth - otherwise you will need to add another washer which is NOT included
  • Collet features 3 blades/petals



  1. To fit - first crimp the 3 petals by hand (or with a special tool) together - so the + gap is almost gone  - then push onto a 1/8" shaft for a tight press fit
  2. Grip the Motor Bell; the prop hub with your fingers of your left hand
  3. use a 3mm hex tool - passed thru the Spinner - apply force equally to both sides - tighten with your right hand
  4. Check that the collet is binding to the motor shaft fully - VERY IMPORTANT - apply 3 kg force to see if you can pull it free?



  • Prop adapter Shaft collet 5.0mm - 3 bladed - fits a motor shaft 1/8th" 3.17mm
  • Prop adapter pinch ring
  • Washer 15/5/2.5 - red
  • Spinner 21/11 - Red - spinner has 3.0mm hole for tightening or 11mm metric socket



Excludes Props

Excludes 5/8mm adapter here if required for Graupner


Shipping - Does not fit into the maximum width dimensions of a $3 envelope - must be included with a "package" sized order - ordered with other things - any order attempting to add 1 or 2 of these prop adapters by airmail envelope $3 - will be cancelled and refunded because it does NOT fit inside an envelpe for airmail with the appropriate packaging - simple - sorry


*NOTE : Its possible to bend an aluminium collet straight by first spinning it - marking the side which is running wide with a permanent ink marker - then bending it away from the mark by the same amount - be aware that metal fatigues oif bent back too many times and may fail.

NOTE : 2 - if the washer is slightly off centre - don't panic - use this to your advanatage to balance a prop which has a lateral imbalance - ie - sit flat across the balancer.

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