Reduction Gear
WARNING: This page is about a different car, the 2020 Jaguar XE and 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
| ITEM | DESCRIPTION |
|---|---|
| 1 | Reduction gear housing |
| 2 | Ball nut drive gear |
| 3 | Ball train |
| 4 | Ball return channel |
| 5 | Ball nut |
| 6 | Steering rack ball channel |
| 7 | Drive belt |
| 8 | Motor drive gear |
The recirculating ball nut in the reduction gear housing is held in a bearing race, allowing the nut to rotate but preventing it from moving axially. As the electric motor rotates the nut, the balls are driven along the channels in the nut and the steering rack, and produce an axial force on the steering rack. A channel in the nut, and mechanisms at either end of the bearing race, recirculate the balls from one side of the nut to the other.