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Turnigy Aerodrive SK3 3548-840kv Brushless Outrunner Motor

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Turnigy Aerodrive SK3 3548-840kv Brushless Outrunner Motor

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$53.99
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SKU:
9192000256-0
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Turnigy SK3 brushless motors are yet another step forward in motor evolution.

Once again we instructed our engineers to develop a motor that would not only rival, but surpass the quality of the leading motors on the market today using the best quality magnets, bearings and materials available.

The result is an outstanding series of motors that are efficient, strong and robust enough for the most discerning modeller.

All of the SK3 series use quality double shielded bearings, sintered neodymium magnets (the strongest type of permanent magnet commercially available) and a string wound stator to ensure an accurate and consistent winding each and every time.

The Turnigy SK3 motors are suited to modellers who are seeking a top quality brushless motor without compromise.

Features:
• Double shielded bearings
• Sintered neodymium magnets
• String wound stator
• High quality finish
• Super-smooth operation

Specs:
Voltage: 11.1~16.8V (3~4S LiPoly)
RPM/V: 840kv
Max Power: 656W
Max current: 50A
Idle current: 0.016A
Resistance: 27mh
Shaft: 5mm
Bolt holes spacing: 25 x 25mm
Bolt thread: M2.5
Plug: 3.5mm Bullet
Suggested ESC: 60A
Motor dimensions: 35 x 48mm
Weight: 167g

Included:
Motor
Mount & screws
Prop adapter

  • Kv(rpm/v) 840.00
  • Max Current (Motor) (A) 50.00
  • Resistance (mh) 23.00
  • Max Voltage (V) 16.00
  • Power (W) 750.00
  • Shaft A(mm) 5.00
  • Length B (mm) 50.00
  • Can Diameter C(mm) 35.00
  • Can Length D(mm) 48.00
  • Total Length E(mm) 74.00
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Gordon | Verified Buyer

  • Quality
  • Overall
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It works

Jun 24, 2021

It works and is what I expected it to be.

Go Figure :-) | Verified Buyer

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Mighty Fine Electric Motor

May 02, 2021

I have 5 of these motors in use in my RC inventory and they all perform flawlessly. I recommend them to anyone wanting a motor of this size. They're powerful!

cgs | Verified Buyer

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Todo bien menos el eje

Apr 10, 2021

Todo bien menos el eje, no hay manera de invertirlo fácilmente.

Da Vinci | Verified Buyer

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OK

Mar 02, 2020

Gute Qualität zum günstigen Preis. Sehr zufrieden, auf jeden Fall empfehlenswert.

A Very Good Motor! | Verified Buyer

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A Very Good Motor!

Jan 13, 2020

I own 4 of these motors and they all perform exceptionally well. They can easily be adapted to mounting inside a cowling by reversing the prop shaft. I've done it successfully to 3 of the 4 motors I'm running. I suggest that you also purchase some replacement prop shafts if they're available. You never know when a mistake in judgement will cause a hard landing that bends the prop shaft. I don't think you'll find a better motor for the price.

William | Verified Buyer

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  • Overall

Powerful Motor

Nov 27, 2019

I have three of these motors and they all perform quite well. Someone stated that this motor makes a lot of noise - so what! It's a big powerful motor - what would you expect. I have them in 94" wingspan sailplanes and they perform admirably - recommend them to anyone in the market.

Armin | Verified Buyer

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Kaufempfehlung

Oct 10, 2019

Bisher keine Probleme.

William | Verified Buyer

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Noisy Motor!

Jun 07, 2018

I bought this motor expecting it to be extremely quiet. That's not the case. At close to idle speed it makes a terrible screeching sound but only at very slow speed. I checked the bearings and they seem to be OK. ESC motor timing is set to AUTO so I don't think that's causing the noise. I haven't yet flown the sailplane the motor is installed in but I hope the noise doesn't develop into a bigger problem.

orakal | Verified Buyer

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Customer Rated

Jun 18, 2016

Hi RC Friends. Just a heads up before you buy one of these excellent motors.

After about 15 to 20 flights varying from 2mins to 5.30mins on a 4cell Zippy 2650 25C battery I noticed a change in the 'noise' coming from the motor which normally ran very quietly.
On stripping it down I found the 2 front bearings were worn out completely, very gritty, and the rear bearing was still smooth. This was exactly the same with my previous 3548-1050kv motor with much less flight time. I can only say that the Tgy blog regarding the excellence of these bearings is false and at the least, very misleading. I have had to replace these bearings which cost about $8 to $10 each at my local brg shop. Most annoying. I suggest all who buy this motor/s should change the front 2 bearings before flying. It's easy to do. Remove the rear collet and simply pull the rotor from the stator. Be careful when assembling as the magnets are strong and can pinch you fingers as it snaps together. Prevent this by holding each part firmly and bring together slowly.
The bearing size is: 8mm O/D x 5mm I/D x 2.5mm wide with metal seals both sides.
Turnigy should review the dubious quality of these small bearings.
Both motors have been used in my control line stunt Oriental weighing 1.5Kg and flys well, pulling 380W, 24A, 40deg C. 55mph on a 10x6 APC-E prop.

Customer files
SK3-3548(DT3025-14P) MOTOR (edited).pdf Download [128]
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