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KB28-47-08S 4900kv Brushless Motor

KB28-47-08S 4900kv Brushless Motor

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SKU:
KB28-47-08S
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KB28-47-08S Brushless Motor

KB28-47-08S
Shaft Size: 3.17mm~12mm
Motor Dimensions: 28mm~48mm    
Weight: 163g
Kv: 4900
Idle current: 2.8A
Resistance: 0.0095
Max Amp: 50

  • SKU KB28-47-08S
  • Brand -
  • Shipping Weight 190.0000
  • Packaging Length 0.00
  • Packaging Width 0.00
  • Packaging Height 0.00
  • Kv(rpm/v) 4900.00
  • Max Current (A) 50.00
  • Resistance (mh) 0.00
  • Max Voltage(V) 0.00
  • Power (W) 0.00
  • Shaft A(mm) 3.00
  • Length B (mm) 48.00
  • Diameter C(mm) 28.00
  • Can Length D(mm) 45.00
  • Total Length E(mm) 60.00
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Great engine for my litle offshore, more power.

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Great engine for my litle offshore, more power.

Top Motor fr Fun Jet

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Top Motor fr Fun Jet

the setup i used for this motor was as below:
60A ESC tunigy sentrey, and 3s 2200mAh nano-tech 35-75c, 2.5inch 64mm 7 blade EDF, so i did the testings and the results are as below:

Amps drew = up to 68A
Power = 588 Watt
thrust = 1.5kg
Temp = up to 70c which i have to mod the motor to fit a heat sink, though its ok even 70c will be ok but any more than that will be a disaster.
Sound = crazily loud
wires = the motor wires will get hot up to 60c
conclusion:
i think this motor is very good and powerful though it have one problem which is getting hot so quickly, don't stay on full throttle for too much specially if its going to drew 68A as my case with 60A ESC, 2200mAh capacity will last only 1min with throttle control so you need much bigger battery, defiantly will preform much better with a bigger fan unit in terms of the motor getting hot and Amps drew, good product but not really recommended cause i know deeply inside after few flights i have to say goodbye to the motor unless i throttle control it really good.
am using the above setup on the typhoon 2000 that you can find here in HK.
out of 10 i give it 7.5

verified_user Quality:
trending_up Value:
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the setup i used for this motor was as below:
60A ESC tunigy sentrey, and 3s 2200mAh nano-tech 35-75c, 2.5inch 64mm 7 blade EDF, so i did the testings and the results are as below:

Amps drew = up to 68A
Power = 588 Watt
thrust = 1.5kg
Temp = up to 70c which i have to mod the motor to fit a heat sink, though its ok even 70c will be ok but any more than that will be a disaster.
Sound = crazily loud
wires = the motor wires will get hot up to 60c
conclusion:
i think this motor is very good and powerful though it have one problem which is getting hot so quickly, don't stay on full throttle for too much specially if its going to drew 68A as my case with 60A ESC, 2200mAh capacity will last only 1min with throttle control so you need much bigger battery, defiantly will preform much better with a bigger fan unit in terms of the motor getting hot and Amps drew, good product but not really recommended cause i know deeply inside after few flights i have to say goodbye to the motor unless i throttle control it really good.
am using the above setup on the typhoon 2000 that you can find here in HK.
out of 10 i give it 7.5

I put this motor in a mono1 boat with an 80a esc and a 3cell Turnigy 2200 battery.This thing rocks!great power,very good quality!

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I put this motor in a mono1 boat with an 80a esc and a 3cell Turnigy 2200 battery.This thing rocks!great power,very good quality!

Monster 100

I bought this engine in the hope that I can overclock Monster Beatle to 65 miles per hour

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Monster 100

I bought this engine in the hope that I can overclock Monster Beatle to 65 miles per hour

I have three of these motors in fast climb gliders up to 1kg. They are fitted each with gearboxes and run on 3 high C cells at up to 130 amps but for very short runs of not over 4 seconds.
After up to 2 years use on my first one I am very happy with the motors and have never had a problem with any of them. Exceptional considering the cost.

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I have three of these motors in fast climb gliders up to 1kg. They are fitted each with gearboxes and run on 3 high C cells at up to 130 amps but for very short runs of not over 4 seconds.
After up to 2 years use on my first one I am very happy with the motors and have never had a problem with any of them. Exceptional considering the cost.

Perfect motor!!! I buy 2 units! Excelent!!!

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Perfect motor!!! I buy 2 units! Excelent!!!

This motor gets HOT very fast at 3s. APC 6x4 on 3s was too much! I burned 3 fingers and the magnet inside got demagnetized.

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This motor gets HOT very fast at 3s. APC 6x4 on 3s was too much! I burned 3 fingers and the magnet inside got demagnetized.

I flew this motor with a 5x5 prop the 60a esc from turnigy on 3s 2200
And after 3min flight half power it stopped turning with 45 left in the battery. charged the batterie but motor was dead.

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I flew this motor with a 5x5 prop the 60a esc from turnigy on 3s 2200
And after 3min flight half power it stopped turning with 45 left in the battery. charged the batterie but motor was dead.

this motor is worthy of his!

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this motor is worthy of his!

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