Popular Hub Motors of Mac:

- 536HR-170-CD          Cassette Version for Fat Tire

- 536HR-170-7D          Freewheel Version for Fat Tire

- 536HF                       Front Wheel Motor

- 536HR-CD                Cassette Version for Standard Tire

- 536HR-7D                Freewheel Version for Standard Tire


Mac Motor is a High Power, High Torque, Geared Hub Motor intended for Spoked Bicycle

wheels from 16" to700C.Rated Output power is typically between 500 to 1000W depending upon the motor

winding selected and the operating voltage. An internal 5:1 planetary gear with clutch is implemented.New

stronger Composite Gears are now standard on the 500W-1000W motors 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 high power 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 the

typical small power motors can offer.
 

Specifications

Mac High Power and High Torque, Geared Hub Motor Data
 

Note:Technical specifications and outline drawings can be customized according to your requirements.

As a guideline, you can expect approximately the following technical speed for the above windings:

6 turn high speed motor                                - 400rpm loaded at 36V, 520rpm loaded at 48V

8 turn standard motor                                   - 320rpm loaded at 36V, 400rpm loaded at 48V

10 turn torque motor                                    - 255rpm loaded at 36V, 320rpm loaded at 48V

12 turn low speed extra torque motor           - 200rpm loaded at 36V, 250rpm loaded at 48V



Features

Key Features of Mac Upgraded Hub Motor

- New, fresh design;

- Various axle lengths available (135mm standard, 170mm for fat tire);

- Temperature sensor (optional);

- Higher grade stator laminations (0.35/0.27mm), for improved efficiency and reduced heat;

- Freewheel or Splined Cassette;

- Improved clearance for Disc Brake Caliper (19.5/20mm).


Mac motor uses a 32 magnet, 16 pair pole motor unlike the vast majority of Geared motors on

the market which use an 8 pair pole 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 available space for the disk is a little limited

at 15mm between the side casing and the inner face of the disk, so some care when selecting a suitable

caliper is required or some spacing of the disk away from the side cover and possibly modification of the

caliper mounting may be required for some models of disk brake caliper.Mac rear motor allows both disk

brake and 7 speed freewheel to be used on the standard 135mm dropout and 170mm dropout for fat tire,

which many of the small power geared motors cannot achieve.Mac front hub motor is now available with

disc brake and is compatible with standard 100mm fork dropout.

Culter MAC (Shanghai) Brushless Motor Co., Ltd.

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