3.17mm Prop Saver w/ Adapter & 3 bands

 Drugos 2003 points

I use this prop saver with my D2826-6 2200kv motor and it works perfectly.

 Haim 117 points

no chance for it to drop off.

 ElectricAussie 3009 points

Hi Karina, They are approx 20mm dia x 2.5mm thick. Cheers, EA!

 Drugos 2003 points

21mm rubber bands.

 Karina 17 points

Could you show me the product ID???? Thx

 Drugos 2003 points

Product ID: RBand-21M

 ElectricAussie 3009 points

Hi Chris, No you can't use this on a 3mm shaft. It won't fit properly and will work loose. For a 3mm shaft you should use PRODUCT ID: 3MPRPSVR, PRODUCT ID: OR019-00501-3, or PRODUCT ID: 19-502-3mX10. Cheers, EA!

 Chris 33 points

Sir you have helped me out on more occasions than one thank you. -Chris Romero

 ElectricAussie 3009 points

My pleasure! How's the weather in CO? You're not far from where I used to live in NM. I miss the mountains, but love living by the sea now in my golden years. Cheers, EA!

 Chris 33 points

Very cold and windy, it just snowed last night( its april)

 Ryan 4 points

Has anyone else had there orders shipped? made my order over 2 months ago, still waiting :(

 JHNL72 1 points

Still waiting here too, little less then 2 months now...

 NewToHobbyKing 7065 points

Dariusz I had the same problem a while ago. This is the only 3.175mm but I bought 3mm ones. Prop Saver w/ Band 3mm (10pcs) SKU: OR019-00501-3. These and a New Drill Bit and a Drill Press. I know it is not perfect bit it works a treat. I am still using them. I hope this helps!!!

 ElectricAussie 3009 points

Hi LLoyd, Agreed! Because this is one of the few options available for 3.17mm shafts, you would think HK would overstock them since anybody thinking about ordering a motor with a 3.17mm shaft will hesitate if they can't fit it out properly. COME ON HOBBYKING, GET IT TOGETHER! Cheers, EA!

 JHS77 10 points

They are expecting a shipment to arrive soon, I asked the live chat people. Cannot wait much longer myself.

 NewToHobbyKing 7065 points

Eduardo Tadeu Halan I had the same problem a while ago. This is the only 3.175mm but I bought 3mm ones. Prop Saver w/ Band 3mm (10pcs) SKU: OR019-00501-3. These and a New Drill Bit and a Drill Press. I know it is not perfect bit it works a treat. I am still using them. I hope this helps!!!

 ElectricAussie 3009 points

Hi james, It's usually a few weeks between re-stocks on this one. "Patience is a virtue!" Cheers, EA!

 ElectricAussie 3009 points

Hi Mark, Yes, both screws bind against the shaft to secure the hub. The will stay tight on a smooth shaft, but I still prefer to grind a tiny flat spot on each side of shaft to ensure that the hub won't fly off if the screws loosen a bit during flight. Cheers, EA!

 Mark 8 points

thanks, are these compatiable with gws slow fly props?

 ElectricAussie 3009 points

Hi Mark, It should be compatible but you may need to size the hole in the prop to fit. It can be used with or without the extra bushing you see in the pic, so it fits a variety of props. Cheers, EA!

 Rdemptioner 431 points

just don't use it on a muticopter of any sort of with props above 8". They are designed for small parkflyers and flying wings where hitting the ground with the prop happens often, they are also better on motors wunning in pusher setup (motor mounted on the back of the plane pushing it along)

 ElectricAussie 3009 points

Hi Wander, A 3-blade won't work with this type of prop-saver because of the uneven forces on each side of the bands. You'll have twice as much force (2 blades) on one side vs. the other (1 blade), so the higher force side will lift away from the prop saver causing hideous prop wobble. Cheers, EA!

 Wander 20 points

makes sense. thanks

 Rdemptioner 431 points

aside from the 3 blade issue, you will also generate too much thrust for these to hold on correctly, stick to 8" 2 blade props or less.

 o0Jack0o 12 points

Hi James, It can handle it. :) I've had 3-4 very bad crashes, it's dented and bent and its still handling it. im using it with D2826-6 2200kv with 8x4 and 6x4 pros and its great.

 ElectricAussie 3009 points

Hi SigiK, I've used prop savers on a couple of different 3D foamies with 4mm shaft motors (Park480/1320kV). They work great as long as you double band the prop, which I do even on my 3mm motors to ensure that the prop stays on if one of the bands breaks. My concern with Richard's idea below was his ability to precisely bore out the hole to 4mm without introducing prop wobble. Cheers, EA!

 ElectricAussie 3009 points

Hi Richard, My responses to your 3 questions are as follows: Yes, No, Probably. Unless you have a lathe or drill press to ensure that you drill the new 4mm hole perfectly straight, you're likely to produce some prop wobble. There are 2 different 4mm prop savers (10 pcs. w/bands) listed and in stock for under $4. See PRODUCT ID: OR019-00501-4 and PRODUCT ID: 19-502-4mX10. Cheers, EA!

 Gert 8 points

No not an appropriate doen.neem.

 Rdemptioner 431 points

never drill anything out when it comes to props and motors (don't let anyone tell you otherwise), it will never be done correctly or dead-center even using jigs. Just buy the 4mm shaft sized version

 ElectricAussie 3009 points

No, don't use this on a 3mm shaft motor. It will be unbalanced and will work loose when the motor is running. There are 2 different 3mm prop savers in stock that you can choose from: 1) PRODUCT ID: 19-502-3mX10 and 2) PRODUCT ID: 3MPRPSVR. The first one is a set of 10 for just a bit more than the single price. I've used them and they're pretty good. Best part is you get lots of rubber rings with it. Cheers, EA

 Felipe 2 points

Não, não usar isso em um motor do eixo de 3mm. Ele será desequilibrada e ficar soltas quando o motor está funcionando. Há duas diferentes poupadores prop 3 milímetros em estoque que você pode escolher: 1) Identificação do produto: 19-502-3mX10 e 2) Identificação do produto: 3MPRPSVR. O primeiro é um conjunto de 10 para apenas um pouco mais do que o preço único. Eu usei-los e eles são muito bons. A melhor parte é você obter lotes de anéis de borracha com ele. Cheers, EA

 Aragorn 51 points

This has a better finish and quality compared to the 10 pieces pack.

 Insaniac 103 points

Plus they fit 1 more size with the included hub adapter. But they're about 4 grams without band.

 Wander 20 points

I think they just received them. Now on my order they are showing as RESERVED.

 hermit81 1701 points

yes. today, 6 hours ago - Prop Savers was available...

 Wander 20 points

i have it backordered also, from my past experiences i think they will arrive soon... at least i hope.

 hermit81 1701 points

I have in order this Prop Savers. almost a month they are not available, almost a month is not sent the parcel to me. I really need Prop Savers...

 simplyG 259 points

write to HK customer support with your order number, they are usually very good in chasing your order up.

 Adiboy 183 points

They will be here within 7 days.... For more information go to the live chat window and ask the operator your Waiting List Queue no. It will give you more specific idea about ur order situation... Pls credit if found helpful...

 Alex 8 points

They are available now.

 Drugos 2003 points

Yes,It is.It will be fine with your setup.

 jarun75 3 points

is it good product,I will use for Turnagy 2826 1400kv motor

 hermit81 1701 points

but with prop savers - is more vibrations. not the fact that when copter crash - a screw survive...

 Drugos 2003 points

Yes,It will.

 yerlikaya 17 points

Çok kaliteli malzemeden üretilmis tavsiye ederim.

 -ZAA- 10 points

5mm and 7mm

 selfmailer 6 points

Yes, of course!

 Slash 4x4 13 points

it will and it works very well with bad landings

 mark7 173 points

28-22 has 3mm shaft, so 3mm prop saver will fit nicely. Check product ID=3738.

 Drugos 2003 points

Yes, because the 2822 motor has a 3.17mm shaft.This prop-saver is perfect for that motor.

 rjr2012 8 points

Sim amigo, o eixo do motor tem o mesmo diâmetro.

 Cardinals 77 points

No, I wouldn't. It's a big chance the prop will be out of balance, and cause unwanted vibrations.

 Drugos 2003 points

No,it will vibrate a lot and cause damages.Buy a 3mm propsaver instead.

 nikotino 97 points

Yo no lo recomiendo

 Kissman 54 points

I am using standard screwdriver with little of hand power. Used on EPP to 1,5m and working well without problems.

 Drugos 2003 points

The screws are not soft so you can tight it very well to the shaft.

 dolino 38 points

Tight hard with srewdriver and this is it.

 Cardinals 77 points

Do not tight one first, then the other one! Remember to cross-tight, more and more on each of them. This helps to prevent an unbalanced prop.

 Perry 2 points

Thanks guys

 Drugos 2003 points

28-30?However check the shaft diameter in the specifications and make sure it is 3.17mm

 Kissman 54 points

Yes, Turingy 2830 have this shaft diameter (3.17mm).

 Tran Nguyen Minh 43 points

It 's better to fit if you fill in little paper aroung the shaft

 rkovvur 11 points

Yup, it is for 1/8" shaft (1/8 * 25.4 = 3.17mm)

 Allison 1368 points

Thanks I should have know that.

 OldFartFlyer 1323 points

This is good for any 1/8" shaft motor. V. light and easy to hook up. No exp of your ST2004, sorry, so cannot say specifically. But should be okay if the shaft is that size.

 Ruslan 2 points

If the hole in the screw a little, it can be increased using a drill.

 Ivan 6 points

In the motor data it seas that the shaft is 3.0mm in diameter, so you should get 3mm prop saver!

 Kellyann 16239 points

Sir NO the HobbyKing Donkey ST2004-1550kv Brushless Motor has a Shaft: 3.0mm you need """"PRODUCT ID: 3MPRPSVR""""" 3mm Prop Saver w/ Adapter & 3 bands I hope this helps.

 christiano 78 points

yes, perfectly for heli motors with 3.17mm shaft

 p3tras 240 points

Yes, you can use this prop saver, but 450 heli motor is far too fast for normal airplane. Maybe it would be suitable for a jet with ~6x8 prop...

 OldFartFlyer 1323 points

If you wish, yes.

 Kellyann 16239 points

Fernando the 450 heli motor has a Shaft diameter: 3.175mm So this is perfect for it as long as you are using it in a plane with a prop. I hope this helps

 cocopl 52 points

I measured this dimension of my digital Vernier Calipers and hole diameter is 3.21 mm (0,126 inch). screwing bolts eliminates backlash. Very good quality.

 SLOW STIK 53 points

So cocopl, your measurement states that the 3.17 and 3.2 are about the same or closer to 3.2. It is a good money saver product !

 byrumjr 277 points

Put some glue on the shaft and slide it on and it will work.

 Elton 18 points

The correct measure of the shaft is 3.17mm

 Lucas 4 points

If it has a little slop a thin layer of ca should do the trick . I highily recommend this for 3d foamies * says you money on props.

 OldFartFlyer 1323 points

For all practical purposes, you may call the 3.17mm and 1/8 inch dimensions identical. Just watch it on 3mm - which is not 1/8" equiv.

 __cpjr 9 points

Acredito eu que essa diferenca nao influencia na ora do voo

 SLOW STIK 53 points

Hey cpjr ! I only understand English and at times I cant understand my own language ! :) I only use these prop savers on my slo fliers because the thrust is low. My other faster models I use the collet style prop adapters.