Mechanical failures occur when a machine or component does not function as intended, leading to a breakdown or malfunction. These failures can result from various factors, including wear and tear, design flaws, or improper maintenance. Common examples include engine failures in vehicles and breakdowns in industrial machinery. Preventing mechanical failures often involves regular inspections and maintenance to identify potential issues before they escalate. Understanding the specific components, such as bearings or gears, that are prone to failure can help in implementing effective strategies to enhance reliability and performance in machines and equipment.