Bearings • Self-Lubricating Bearings
Featuring a lubricant contained within the bearing walls, self-lubricating plain bearings are used in applications where excessive friction is a concern. Able to operate under extreme hot and cold temperatures, self-lubricating bearings have a high load capacity and can be used with rotational, oscillatory, and axial sliding motions. Types of self-lubricating bearings include a plastic bearing, which features lubricant molded into the bearing. A sintered metal bearing, which has porous walls that draw oil in via capillary action, is also a type of self-lubricating bearing. Other self-lubricating bearing types include oilite bearings.
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Metcar manufactures solid self lubricating bearings and self aligning bearing assemblies that are non-galling and exhibit high compressive strength. They have a temperature range from 1200 F to -450 F, dry or under water. Metcar's products solve severe service lubrication problems in tough environments, including water and sewage treatment facilities. Bearings and thrust washers can be made to your specifications. Metcar Grade M-400 is recommended for food processing applications. It is a non-porous, resin impregnated, carbon-graphite material with excellent self lubricating properties.
Graphite Metallizing Corp manufactures various bearings from GRAPHALLOY. GRAPHALLOY®, a graphite/metal alloy, is a unique self-lubricating bearing material that offers high performance in hundreds of mechanical and electrical applications. Because neither grease nor oil is used for lubrication with these bearings they do not attract dust or foreign matter, oiling schedules are eliminated, oil or grease damage to products is prevented, and allows the possibility for operation in inaccessible locations where maintenance is difficult to perform. Operating temperature ranges are -450º to 1500º F (-240º to 800º C).