Final answer:
Precision bearings and gears should be removed with a puller, which allows for safe, even, and precise removal, unlike prybars, hammers, or gear and bearing wrenches which could damage the components.
Step-by-step explanation:
The correct answer is option a) a puller. Using a puller is the professional and precise method for removing precision bearings and gears.
A puller allows you to apply even pressure around the bearing or gear, preventing damage to these components as well as to the shaft from which they are being removed.
It contrasts with options like prybars or hammers, which can apply uneven force and potentially cause deformation or damage to the precision components.
Using a hammer or prybar might be tempting due to convenience, but these tools can lead to imprecise force application and might compromise the integrity of the equipment.
Gear and bearing wrenches, while useful for applying torque, are not the ideal tools for bearing and gear removal because they don't specifically cater to the necessary extraction process and could similarly cause damage if used inappropriately for this task.
The correct answer is option (b) gear and bearing wrenches. Precision bearings and gears should be removed using gear and bearing wrenches to provide grip and mechanical advantage in applying torque to turn the nut or remove the gear.
A wrench is a useful tool for turning nuts, and a pry bar is a lever used for other applications, not for removing precision bearings and gears.