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All these adapters are allow the prop to easily dislodge in an accident. They are held in place by O-Rings. These are not reccomended for high RPM applications. Essentially, if the expected top speed is over 40mph, you should consider using a Collet or Set Screw type adapter. Use your own judgement and good reason here. The best way to save props is to understand they make very poor landing gear. ;-)
Propeller Saver. PropSaver for 1.5mm shaft. Photo shows typical shaft saver mounted to generic prop. Prop is not included. Weight .83 grams plus O-ring. Weight .93g with included O-ring.
Fits 2mm motor/gearbox shaft, locking on with screws. O-Rings to bind prop to saver hub is included. It is reccomended that the shaft be extended through the saver cone about .1 to .125" (3mm).
Himax Prop Saver Adaptor 3.0mm Shaft. Prop held to hub with rubber bands which allow prop to fly off upon contact with ground. Easy to reinstall undamaged prop with rubber bands.
Himax Prop Saver Adaptor 3.2mm-1/8" Shaft. Prop is held to hub with rubber bands which allow prop to eject upon contact with ground. Easy to reinstall undamaged prop with rubber bands.
Fits 4mm motor/gearbox shaft, locking on with screws. O-Rings to bind prop to saver hub is included. It is reccomended that the shaft be extended through the saver cone about .1 to .125" (3mm).
This unit has a blind hole for the motor shaft. The front of the adapter becomes the front of the shaft. A 1.4mm nub centers your prop. Made for props designed to press onto 1.5mm shafts. Perfect to get your GWS 3-2 or 3-3 prop mounted with a saver on your brushless motor. We suggest our small o-rings above for use with this saver. The included rubber bands are of poor quality and should be discarded.
SKU Number: RRCPS15NUB
RC Prop Savers and O-Rings
On small electric models, a prop saver lets the propeller pivot back on impact instead of snapping, and this category brings together RC prop savers and the O-rings that hold the prop in place. The approach is common on lightweight park flyers and indoor models where a rigid prop mount would be more fragile.
Prop Saver Adapters
The Radical RC radial prop saver fits 1.5mm shafts, and a 2mm MPI prop saver covers slightly larger motor sizes. These mount to the motor shaft and use a rubber O-ring to retain the propeller.
Replacement O-Rings
RRC prop saver O-rings are sold in five-packs across several weights, from extra small and small through standard and heavy duty, so you can tune retention to the prop and model. Keeping spares on hand means a stretched or lost ring does not end a flying session.
Choose a prop saver and matching O-rings for your motor shaft from the parts here.
 "RRC Prop Saver O-Rings 5PK Extra Small")
 "RRC Prop Saver O-Rings 5PK Small")
 "RRC Prop Saver O-Rings 5PK Standard Weight")
 "RRC Prop Saver O-Rings 5PK Heavy Duty")
 "2mm MPI Prop Saver")
 "Radical RC Radial Prop Saver 2.3MM")
 "4mm MPI Prop Saver")
 "Radical RC Radial Prop Saver 1.5MM - 1.5mm Bore Props")