Which tool is recommended for measuring pinion bearing preload?

The recommended tool for measuring pinion bearing preload is the dial-type torque wrench. This tool is specifically designed to give a precise measurement of the torque applied, allowing technicians to determine the exact preload on the bearings during assembly. The dial-type torque wrench provides a visual display of the applied torque, which ensures accuracy in reaching the specified preload requirements set by manufacturers.

Measuring pinion bearing preload is crucial for the proper functioning of the drivetrain, as insufficient or excessive preload can lead to premature wear, noise, or failure. The dial-type torque wrench is suitable for this task because it allows for incremental adjustments and can easily show the technician when the desired torque level is achieved.

The other tools listed serve different purposes. A click-type torque wrench is also used to measure torque but typically provides an audible click rather than a dial display, which might not allow for as fine-tuned adjustments needed for precise preload settings. A depth micrometer is used for measuring the depth of holes or grooves, which is not relevant to preload measurement. A dial indicator is utilized for measuring small distances or movement, such as checking runout or end play, but it does not measure torque directly. Therefore, the dial-type torque wrench is the best choice for accurately measuring pinion bearing preload