Oerlikon Fairfield will present a new electric drive system for off-highway vehicles at this month’s Agritechnica show in Hanover, Germany. The system integrates an Oerlikon Fairfield Torque Hub planetary drive with an Interior Permanent Magnet Motor produced by Ashwoods Electrical Motors.

The new drive system delivers 4,000 Nm of drive torque and 5,600 Nm of braking torque, yet the motor is up to 30% smaller and lighter than current production solutions.

The system features a triple planetary ratio that fits in the same length as a typical double planetary design, as well as an integrated Ultra electric parking brake. Combining the motor, planetary drive and brake has enabled the elimination of several redundant components – for example, a common shaft is used for motor, brake and transmission. According to Oerlikon, the unit is so compact that it enables OEMs to provide a steerable 4WD configuration where previously there was not enough space.

The Oerlikon Fairfield Torque-Hub planetary drive is available in single planetary, double planetary, triple planetary and differential planetary gearing configurations to meet the individual torque and operating speed requirements of different applications.

Source: Oerlikon Fairfield