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B20-40-14L-FIN Brushless Inrunner Motor 4120kv

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B20-40-14L-FIN Brushless Inrunner Motor 4120kv

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B20-40-14L-FIN Brushless Inrunner Motor 4120kv

Dimensions: 20mm (23mm with fin) x 40mm
KV: 4120 rpm/v
Max current: 17A
Max Power: 290W
Idle current: 1.3A
Resistance: 0.05Ω
Shaft: Φ2.0mm
Weight: 70g
Suggested ESC: 25A
Cell count: 2~3S Lipo
Bolt holls spancing: 16mm
Bolt thread: M2.5*4
Gold Connection: Φ3.5

  • Kv(rpm/v) 4120.00
  • Max Current (Motor) (A) 17.00
  • Resistance (mh) 0.00
  • Max Voltage (V) 11.00
  • Power (W) 290.00
  • Shaft A(mm) 2.00
  • Length B (mm) 41.00
  • Can Diameter C(mm) 20.00
  • Can Length D(mm) 40.00
  • Total Length E(mm) 56.00

Dimension Diagram Guide

  • attributeset-10


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Volker | Verified Buyer

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Customer Rated

Jan 11, 2014

Good motor for 1/18 cars. Difficult to fit due to unusual shape (longer than 40mm due to large bearings). Looks at the front side as what you see on the picture on the back. Motor mount might need modification. Power is OK. Does not work with Turnigy TrackStar 25A 1/18th Scale ESC! Lots of cogging, Does not fit in Mini inferno. However, if it fits it is a nice motor.

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