Gear reducers can be complex devices that apply the science of gearing and mechanical benefit to perform thousands of complex operations in many different gear reducer box industries. Gearbox manufacturers have designed a variety of gearboxes in multitudes of different configurations and gear ratios. When failures happen it is advisable to understand how to restoration the failed systems and preventing future failures in order to keep production ready to go.

Three things that can cause premature failure are poor lubrication, misalignment and overloading. Failure modes can involve bearing failures or gear failures, or both.
Lubrication is crucial for both bearing and gear life. Important areas of lubrication are the volume of lubricant that is usually delivered to each gear mesh and bearings, along with the properties of the lubricant. The lubricant forms a thin film that prevents metal-to-metal contact between gears and between bearing parts. Modern industrial gears use an involute tooth form and tooth engagement, which really is a mixture of rolling and sliding. The oil film can be a slim barrier between moving parts which allows the rotating force to carefully turn the gears quickly without damage to the metal surfaces. Contamination in the lubricant can result in scuffing and much faster put on for both the bearings and the gearing in a gearbox, so that it is imperative that maintenance mechanics verify gearbox lubricant for contamination periodically, once for calendar year as the very least. Each gearbox could have a recommended oil level as well as a technique to lubricate both bearings and the apparatus set. With bath lubrication, all moving components dip listed below the essential oil level. With splash lubrication, oil can be splashed around inside the gearbox casing by fast moving elements, covering all moving parts. With pressure lubrication, oil is definitely pumped to each gear mesh and bearing through spray nozzles or essential oil passages from the gearbox oil sump or from and external reservoir.