The drive pinion is beveled at 45 degrees and engages the ring gear, which is also beveled at 45 degrees, causing the ring gear to revolve at 90 degrees to the drive shaft.

• 该驱动器齿轮是斜45度和参与的齿圈，这也是斜角在45摄氏度，造成齿圈旋转90度的传动轴。