B40-9S Comp + 6,7:1 Kv 4690

B40-9S Comp + 6,7:1 Kv 4690

B40-9S Comp + 6,7:1 Kv 4690 is a professional Hacker B40-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 b40-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

• Poles: 2
• Turns: 9
• Idle current (I0) at 8.4V [A]: 4
• Internal resistance (Ri) [Ohm]: 0,013
• Gear reducing: 6,7:1
• Output shaft: 6mm
• Recommended timing [°]: 0° - 5°
• Switching Frequency [kHz]: 8
• Controller recommendation [A] (depending on setup): 70 - 80
• Leerlaufdrehzahl pro Volt (kv) ohne Getriebe: 4690
• Weight [g]: 194
• Length [mm]/[in]: 78,2
• Diameter [mm]/[in]: 29,0
• Outer diameter [mm]/[in]: 29

B40-9S Comp + 6,7:1 Kv 4690 Product description and features The integrated high-performance fan optimally cools the motors of the B40-Competition. The running noise is also minimised by asymmetrically arranged air outlet holes. The external housing design with milled cooling grooves offers perfect heat dissipation with minimum weight. The B40-Competition motors are equipped with segmented high-performance rotors made of optimised magnetic material. The B40-Competition has larger ball bearings t

Reference SKU/model: 10090901. Mention this reference when contacting RC-MODEL for availability or fitment support.