The same result will occur in greases where such oils are used as the lubricating agent [9]. Vibration represents a huge problem as for bearing failures. Inspect for leaks and replace damaged seals quickly. [9] Maintenance Technology International Inc., Troubleshooting Rolling Element Bearing Problems. In full complement bearings (cageless), smearing can also occur in the contacts between rolling elements depending on lubrication and rotation conditions [7]. There are many requirements which need to be considered when selecting a bearing, including load (weight and type), speed, and misalignment. 1. 10 parameters for choosing the optimal mass flowmeter for an application. If a bearing overheats, the hot lubricant breaks down and can cause scoring and even etching of the bearing surfaces. In industrial applications there are two types of lubricants suitable for high temperature use: grease and oil. If the service life for the old bearing was adequate, replace with the same type of bearing … Steer clear of improper handling, mounting and storage Bearings … One moving part requiring particular attention are the bearings. Severe brinell marks can cause premature fatigue failure. Some researches in the bearing industry have stated that improper lubrication can account around 80% of bearing failures [8]. Process Instrumentation. Another type of bearing lubrication is solid or dry lubrication. The shelf life of lubricants can vary depending on the type of lubricant and storage conditions, and mixing different grades and/or brands of greases or oils can be catastrophic. from the bearing lining. Dirt or Debris. There is no bearing that is suitable for every application, so each case needs to be considered individually, and the most appropriate bearin… For a number of reasons, few bearings reach their full designed life expectancy. The bearing manufacturer can assist with what constitutes a proper match between seals and application. 3017/E. Dirt and Debris. Application Corner: Flowmeter accuracy in the plant. Motion Industries is a wholly owned subsidiary of Genuine Parts Company. The selection of adequate bearing lubricants is based on decisions around whether to choose oil or grease, and determining what kind of additive is required [1]. Bronkhorst USA's general manager discusses the company's product offerings and solutions in this Industry Brief. Use caution when using water, steam or compressed-air sprays when cleaning equipment. The amount of grease to be used will depend on many factors relating to the dimensional and geometrical parameters of the housing, space limitations, bearing working speed and type of grease used. If bearings will be removed for inspections, handle them carefully. Detailed, accurate records will prove essential when establishing trends in bearing performance, defining service intervals and planning future maintenance. With grease lubrication, the contacts may operate in a severely starved condition because of the poor bleeding capability of the grease leading to poor lubrication and possible reduction of life [7]. The greater the overload, the more it shortens bearing life, which may cause the bearing components to fracture. [3] Dale E. Stallard, Bearing Lubrication Under Extreme Conditions, Rexnord Bearing Products, 2008. [8] Koyo Seiko Co. Ltd., Rolling Bearings: Failures, Causes and Countermeasures. many bearing failures. Below are general suggestions for selecting and maintaining seals: Keep in mind these additional points to prevent contamination from damaging bearings: Bearings are overloaded when they operate beyond their rated design limits for load, speed or temperature. 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