What are common failure modes in mechanical drives?

The correct choice highlights critical mechanical failures that can significantly impact the performance and longevity of mechanical drives. Wear occurs due to the continuous operation of moving parts, leading to the gradual removal of material, which can weaken components over time. Fatigue refers to the failure that occurs after repeated loading and unloading cycles, potentially resulting in cracks and eventual breakage of parts.

Misalignment is another common issue that arises when the shafts and bearings are not properly aligned, causing uneven wear and increased loading on specific components, which can further lead to failure. Lubrication failure is crucial, as insufficient or contaminated lubrication can result in increased friction and heat, accelerating wear and causing eventual breakdown of mechanical systems.

While friction and contamination are relevant factors, the broader and more detailed set of issues included in the correct answer encompasses a comprehensive understanding of potential failure modes specific to mechanical drives. Overheating and low voltage are typically more related to electrical systems rather than mechanical drives themselves, and improper maintenance alone does not capture the diverse range of mechanical failures that can occur. These factors combined provide a holistic view of the challenges faced in maintaining mechanical drive systems.