GEM IN-WHEEL DRIVE

GEM in-wheel drive represents an advanced propulsion system for urban electric vehicle applications, using innovative modular multiphase GEM technology. It is suitable for electric two, three and four wheeler applications due to modular mounting options and different speed versions. Fully integrated drive operates in a low voltage regime with a simple air cooling system. Patented modular design allows the development of a complete product range at the power level from 1 kW to 15 kW.

PRODUCT COMPARISON

 

G1

G2.4

G2.6

G3

Nominal power 1 - 3 kW 4 kW 6 kW 7,5 - 15 kW
Voltage level 48 - 75 V 48 - 75 V 48 - 75 V 48 - 100 V
Min. tire size 10" 13" 13" 14"
Active motor weight 3 - 6 kg 11,5 kg 17 kg 15 - 20 kg
Cooling Air Air Air Forced air
Motor controller Fully integrated Fully integrated Fully integrated Fully integrated
Series production 2019 Yes Yes 2019
Application Scooter and 2-wheeler Motorbike, commercial vehicle
Bicycle 3-wheeler, micro car, other 4-wheeler

GEM IN-WHEEL DRIVE – G2.4

premium 4 kW direct drive for scooters and mopeds L1e category and other advanced LEV

  STANDARD CUSTOM
Nominal power 4 kW 3 - 6 kW
Nominal torque 145 Nm 120 - 180 Nm
Peak power (20 sec) 5,5 kW 4 - 8 kW
Peak torque (20 sec) 180 Nm 140 - 240 Nm
Battery-to-wheel efficiency up to 92% up to 94%
Wheel rim size 13" integrated or standard car rim ≥ 12" integrated or ≥ 13 standard car rim
Active motor weight 11,5 kg  
IP protection IP67
Temperature range -40 - +60 °C
LEV applications bicycle, scooter, motorbike, other 2-wheeler, 3-wheeler, micro car, golf cart, other 4-wheeler, agricultural and industrial vehicle
Features integrated modular controller, regenerative breaking, CAN communication, full safety protection, additional option 4Q operation

 

GEM IN-WHEEL DRIVE – G2.6

high power 6 kW  boosted acceleration drive for diverse LEV applications

  STANDARD CUSTOM
Nominal power 6 kW 5 - 10 kW
Nominal torque 175 Nm 175 - 250 Nm
Peak power (20 sec) 7,5 kW 7 - 12 kW
Peak torque (20 sec) 205 Nm 205 - 340 Nm
Battery-to-wheel efficiency up to 92% up to 94%
Wheel rim size 13" integrated or standard car rim ≥ 12" integrated or ≥ 13" standard car rim
Active motor weight 17 kg  
IP protection IP67
Temperature range -40 - +60 °C
LEV applications scooter, motorbike, other 2-wheeler, 3-wheeler, micro car, golf cart, other 4-wheeler, agricultural and industrial vehicle
Features integrated modular controller, regenerative breaking, CAN communication, full safety protection, additional option 4Q operation

 

GEM IN-WHEEL DRIVE – G1

advanced and compact direct drive for urban e-mobility

  STANDARD CUSTOM
Nominal power 2 kW Customization regarding operating voltage, speed, nominal and peak torque, CAN interface, breaking functionality, etc.
Nominal torque 100 Nm
Peak power (20 sec) 3 kW
Peak torque (20 sec) 140 Nm
Battery-to-wheel efficiency up to 90%
Wheel rim size ≥ 10" integrated or external car rim
Active motor weight 3-6 kg
IP protection  IP67
Temperature range -40 - +60 °C
LEV applications advanced and compact direct drive for urban e-mobility
Features speed regulation, complementary functional safety, software customization, double-side mounting

 

GEM IN-WHEEL DRIVE – G3

smart choice for demanding high-power future micro and small vehicle applications

  STANDARD CUSTOM
Nominal power 7,5 kW Customization regarding operating voltage, speed, nominal and peak torque, CAN interface, breaking functionality, etc.
Nominal torque 205 Nm
Peak power (20 sec) 10 kW
Peak torque (20 sec) 290 Nm
Battery-to-wheel efficiency up to 90%
Wheel rim size ≥ 14" integrated or external car rim
Active motor weight 15 -20 kg
IP protection  IP67
Temperature range -40 - +60 °C
LEV applications demanding high-power future micro vehicle applications
Features speed regulation, complementary functional safety, software customization, double-side mounting

 

Interested in GEM motors products or technology?

Contact GEM Motors experts for non-binding, hassle free conversation. All information that you provide will stay just between us - that is our culture.

Contact Our Experts & Consultancy Team