QS Motor 273 4kw Rated 12kw Peak Hub Motor Brushless BLDC Motor

NOTE:
1.Orders do not include customs duties, which are borne by the buyer.(Except for some aliexpress marked orders including tax).
2.For some special countries with strict customs for import, so pls. confirm it firstly to us that you have ability to do customs clearance, otherwise we will not take on heavy responsibilities for this issue, return money and goods are not support. (special countries list contact seller) 

For this 273 spoke hub motor, the dropout is 152mm.

273 motor means the diameter of iron ring of rotor is 273mm

Key Features

1). Simplify to make a electric-scooter. Gearbox, transmission shaft, clutch are no need. Which save space.

2). It could be installed in the rear to save more space for battery.

3). Support regenerative braking

4). High efficiency: 85~92%

Product description

Genearlly Spec:

• Motor Type: BLDC Outer Rotor In-Wheel Hub Motor With Hall Sensor

• Brand: QS Motor, QSMOTOR

• Motor Design: Double axle without moped rim (integrated), 36 spoke holes, OD 4.2mm(only silver spokes available)

• Matching Rim Size: 17inch, 18inch, 19inch moped wheel rim

• Magnet Height: 40mm, 16 pole pairs

• Stator: Aluminum Core

• Rated Power: 4000W, peak 12000W

• Speed: 24KPH-120KPH, it's customized, genearlly we will design as 72V100KPH.

• Work Voltage range: 48V-96V, will be 72V as default.

• Max Torque approx 266.0N.m

• KV: 12.5/15.6/17.9(optional)

• Thermic Probe: KTY83-122 (as default, optional)

• Max Efficiency approx 84%

• Working Temperature: 70-120℃ , peak 150 ℃

• Brake type: Disc brake (as default), PCD6*44mm for bicycle

• Drop-outs/Rear fork Width for installation: 150mm

• Dual Halls with waterproof connectors(One for using, one for spare)

• 14mm english thread length for single/3 speed freewheel

• 10mm axle flats

• 16mm² Cross Section of Phase Wire(not including insulation layer)

• Waterproof Grade: IP54

• Color: Black (As default)
  

Test Report

273 E-Spoke Hub Motor Bicycle Application