What is the pinion shaft?

The pinion shaft is a component of a gear system, typically found in machinery and vehicles, that connects the pinion gear to the drive mechanism. It transmits rotational force from the pinion gear to other gears, enabling power transfer and motion. In automotive applications, the pinion shaft is often part of the differential, playing a critical role in controlling wheel speed and torque distribution. Its design and material are crucial for durability and performance under load.