Brief

Mac electric motor for scooter, high torque hub motor 

The Mac Hub Motor is a High Power, High Torque, Geared Hub Motor intended for Bicycle wheels from 16” to 700C. Rated Output power is typically between 250 to 1000W depending upon the motor winding selected and the operating voltage. Faster motors and higher voltages tend to offer higher output power levels. An internal 5:1 planetary gear with clutch is implemented. Composite Planetary Gears are now standard to ensure a long trouble free life. The gear reduction allows the motor to spin at a higher and more efficient rpm greatly improving the starting torque and hill climbing ability when compared with comparable Direct-Drive motors, whilst also being smaller and lighter than a comparable DD motor. The clutch offers minimal drag when not under power. Unlike the majority of geared motors on the market, the Mac 500/1000W Hub Motor is built for the high power demands of the US market, not the highly restricted EU market. The slower wound versions could still be used and stay within the EU speed limit, for those requiring more hill climbing ability than typical 250W motors currently available. There is also a smaller 250/350W version of the Mac Hub Motor, which is ~0.5kg lighter and has a smaller motor structure than the 500/1000W version.

The Mac motor uses a 32 magnet, 16 pair poles motor unlike the vast majority of Geared motors on the Market which use an 8 pair poles motor. This further improves torque, but does mean that the electrical rpm or commutation frequency is higher than typical geared motors and much higher than Direct-Drive motors, so some care with controller selection is required. The Mac rear motor allows both disk brake and 7 speed freewheel to be used on the standard 135mm dropout. The Front 500/1000W Mac motor is now available with disc brake and is compatible with standard 100mm fork dropout.

The Mac motor is recommended for use at 36V or 48V with a recommended controller limit of 25-30A (up to 40A and 2000W max input power can be used, if used moderately). We typically recommend the motor is configured for 32-40km/h (20-25mph) when used on steep gradients, but it can be safely configured for up to 50km/h (30mph) max speed when used on mainly flat ground.

Mac Front Motor outline drawing (with disc): 
http://sdrv.ms/1aygnZZ

Mac Rear Motor outline drawing: 
http://sdrv.ms/19m6HAh

Specification:

Rear Motor Accepts disk brake and 7 speed freewheel within a standard 135mm dropout. Front motor fits within a 100mm standard Front Fork.

Spoke Radius - 172mm

Weight - 4.3kg

Black Paint Finish

MAC offers the best price-to-performance ratio in the market. We take pride in our products and back them up with good customer service. Our Engineering team is constantly working on developing and improving our products and we have a Western Sales Manager so there are absolutely no problems with communications in English. The Management team and Key Engineering members also have a good level of English, so doing with Business with us will be easy. We are located in Pudong, only about 45mins taxi from Pudong International Airport.

We are now seeking International Distributors for our Products. If you require good quality and high performance at a reasonable price I’m sure we can meet/exceed your requirements. If you want the cheapest and barely adequate products, we may not be the right choice for you.

Thank you.