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B50-7S Competition + 6,7:1 Kv 4720

B50-7S Competition + 6,7:1 Kv 4720



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B50-7S Competition + 6,7:1 Kv 4720

B50-7S Competition + 6,7:1 Kv 4720 is a professional Hacker B50-Competition item from Hacker Motor GmbH, prepared for the RC-MODEL catalog with customer-facing information, official product imagery, structured specifications and no storefront supplier pricing.

Recommended use

This product is relevant for RC builders and pilots looking for hacker b50-competition, replacement parts, upgrades or setup components. Use it when planning a new model build, maintaining an existing aircraft, boat or radio system, or comparing compatible electronic and power-system parts.

What to check before ordering

Confirm the physical dimensions, weight, voltage, current rating, connector style, shaft size, cell count, propeller range and installation space against your model. RC-MODEL can help verify compatibility when you provide the model name and part number.

Key details

  • max. power range [W] (max.15 sec.): 2800
  • Poles: 2
  • Turns: 7
  • Idle current (I0) at 8.4V [A]: 8,4
  • Internal resistance (Ri) [Ohm]: 0,0048
  • Gear reducing: 6,7:1
  • Recommended timing [°]: 0 - 5
  • Switching Frequency [kHz]: 8
  • Controller recommendation [A] (depending on setup): 160
  • Leerlaufdrehzahl pro Volt (kv) ohne Getriebe: 4720
  • Weight [g]: 283
  • Length [mm]/[in]: 84
  • Outer diameter [mm]/[in]: 37
  • Shaft diameter [mm]/[in]: 6

B50-7S Competition + 6,7:1 Kv 4720 Product description and features The B50-7S Competition Kv 4720 with 6.7:1 gear drive is specially designed for hotliners, F5B and similar models with 3-4S LiPos. The integrated high-performance fan cools the B50 competition motors in the most effective way. The running noise is also reduced to a minimum with asymmetrically positioned air outlet holes. The external housing design with milled cooling grooves offers perfect heat dissipation with minimum weight. T

Reference SKU/model: 10100978. Mention this reference when contacting RC-MODEL for availability or fitment support.

Relevant RC Academy guides

Learn before you buy

These guides explain the setup, safety checks and accessory choices that usually matter for this product type.

Technical Specifications
Manufacturer Hacker Motor GmbH
Product Type Hacker B50-Competition
SKU 10100978
EAN 4250320276326
Availability In stock
Weight [g] 283
Poles 2
Turns 7
Idle current (I0) at 8.4V [A] 8,4
Internal resistance (Ri) [Ohm] 0,0048
Gear reducing 6,7:1
Recommended timing [°] 0 - 5
Switching Frequency [kHz] 8
Controller recommendation [A] (depending on setup) 160
Leerlaufdrehzahl pro Volt (kv) ohne Getriebe 4720
Length [mm]/[in] 84
Outer diameter [mm]/[in] 37
Shaft diameter [mm]/[in] 6
Prop Adapter No
Gold plug mm (recommended) 4 - 5,5
Backmount mountable No
Front mountable Yes
max. power range [W] (max.15 sec.) 2800
Mounting cross No

Tags: Hacker Motor GmbH, B50-7S Competition + 6, 7:1 Kv 4720, Engines & Power, Electric Motors, Hacker Inrunner, Hacker B50-Competition