Bearing failure is a critical and very real problem faced by a wide range of operators within many different industries. It can occur unexpectedly and cause serious problems, financial or otherwise. In a factory setting, bearing failure can cost as much as $50,000 per hour through lost productivity, unplanned outages, and downtime. In an aircraft, bearing failure can be a detriment to safety and airworthiness. For these reasons and many others, preventing bearing failure is pivotal. This blog will discuss the seven most common reasons why bearings fail, as well as some ways to prevent them from happening.