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Turnigy Aerodrive SK3 - 4240-620KV Brushless Outrunner Motor

Turnigy Aerodrive SK3 - 4240-620KV Brushless Outrunner Motor

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$33.94
Rating:
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Weight:
336 g
SKU:
SK3-4240-620

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Product
Description

Turnigy SK3 Motors are the next leap forward in motor quality and design. We instructed the engineers to source the best quality magnets, bearings and materials available to them and develop a motor that would not only rival but surpasses the quality of many leading motor manufacturers on the market today.

The result is an efficient, high caliber motor using quality double shielded bearings, sintered Neodymium magnets and a string wound stator ensuring an accurate and consistent winding each and every time.

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

Specs.
Turns: 12T
Voltage: 4~5S Lipoly
RPM/V: 620KV
Internal resistance: 0.017 Ohm
Max Loading: 48A
Max Power: 830W
Shaft Dia: 5.0mm
Bolt holes: 25mm
Bolt thread: M3
Weight: 194g
Motor Plug: 3.5mm Bullet Connector

Product
Specifications

Additional Information

  • SKU:
    SK3-4240-620
  • Brand:
    Turnigy
  • Weight(g)
    336.00
  • Length
    132.00
  • Width:
    60.00
  • Height:
    90.00
  • Kv(rpm/v)
    620.00
  • Max Currents (A)
    48.00
  • Power (W):
    830.00
  • Length B (mm):
    50.00
  • Can Length D(mm)
    24.00
  • Max Voltage(V)
    19.00
  • Shaft A(mm):
    5.00
  • Unit Weight (g):
    194
  • Diameter C(mm)
    42.00
  • Total Length E(mm)
    70.00
  • Resistance (mh):
    17.00
Community
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Yes too short shaft is a problem if you want to use for instance 13x6 3 blade propeller. To overcome problem I bought from Varioprop / Germany Collet Chuck Long size 12C and there is no problem anymore.
HK should really pay attention to this problem and have their Collet Chuck Long available so a lot of customers would be happy.
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I don´t know if it is this motor but I am using it in a glider with a 14 x 8 fold with 4S 5000 and I only get 2.300g thrust I was expecting arround 3.000 Kg thrust


Could you reccomend me a motor with 3.000g thrust with no more than 195g weight
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Very nice motor.... I've got one installed in my HK (VQ Models) Kenmore Air 1620mm Beaver (AUW 3.4Kg) on 5S LiPo & turning a MA 3blade 12x6 prop . .... Smooth quiet & powerful.... On static testing I get 650W @38A 9500RPM & 2 kilos of static thrust.... However, as mentioned elsewhere, I seriously criticise the overly short shaft length of the supplied prop adapter. This seriously struggles to cope with the thickness of many props that this motor is capable of turning.
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Just fitted this turnigy sk3 4240-620kv into the ultimate 40. run on 2200 5s lipo & 80 esc.11x7 prop.Perfect combination,smooth running & loads of power for vertical climbs & rapid take offs.
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Sehr sauber verarbeiteter Motor der auch in einer sehr hochwertigen Verpackung daher kommt. ( Ist fuer viele ja wichtig !! ) Uebr die Leistung kann ich noch nichts sagen, folgt aber gleich nach dem Einbau
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Hi Guys

I love the motor but I'm having trouble installing a 3 or 4 blade prop because the porp adaptor is too short. Does anyone have a solution? Its about 8mm too short if you take into consideration the prop washer and nut.
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Purchased this motor to fit in my new HK Firenza. Superb quality. Bearings feel smooth.
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This engine is planned for how many kilos for the plane, me I have one p51 Mustang 1600mm 2800kg! It rather hardly, thank you is you
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Nice motor, fits exactly in an Giant cessna 182 epo, no gap between spinner and fuselage! Far enough power with 14x7 wood prop and 4000mAh LiPo. Normal flight times 15-20 min (no 3D flight). Only problem are those bearings. After 5 flights (1,5 hour total flight time), the bearings started to sing and buzzing/humming...
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