high temperature bearings
This rolling bearing, which is packed with fluorine grease for high-temperature operating conditions and uses MoS2 solid lubricant, can be used in high-temperature environments up to 400 °C.
Directory of High Temperature Bearings manufacturers and distributors including bearings for applications in high temperature processing industries, chemical processing environments and submerged applications, oven environments, petroleum and chemical applications, standard and metric sized high temperature bearings, custom bearings or standard bearings, and more
a graphite/metal alloy, is ideally suited to applications where temperatures are too high to permit the use of oil or other lubricants. GRAPHALLOY Bearings and Bushings will not soften at high temperatures or extrude under load. Many grades are suitable for temperatures to 750°F (400°C) in air. In addition, special grades provide service up to 1000°F (535°C) and higher in non-oxidizing atmospheres.
Use GRAPHALLOY Bearings and Bushings in bakery and industrial ovens, glass plants, conveyors, dryers, kilns, kiln cars, stokers, soot blowers, oil guns, gypsum board and veneer dryers ...wherever temperatures are too high to permit the use of oil or greases.
The PolyLube HT bearing is a high load, low RPM bearing designed for applications where self-lubrication is desired, but conventional composite bearings will not perform at high temperatures. This product has been designed to provide excellent performance at elevated temperatures. With a glass transition temperature of over 450°F this epoxy filament wound structure exhibits superb performance over extended exposure to elevated temperatures. The bearing material is focused on applications where the bearing will be exposed to temperatures up to 500°F.
In addition to its high compressive properties (in both static and dynamic modes), this bearing material is inherently self-lubricating. The self-lubrication capability of Polygon’s new material means that the use of expensive high temperature external lubricants such as polyurea grease, lithium grease, some bentone greases, as well as advanced ester based oils and complex thickening systems may no longer be necessary.
The PolyLube HT bearing creates a high strength, self-lubricating journal bearing material that can offer performance enhancements over greased systems, as well as graphite loaded bronze structures, some iron-copper graphites, polysulfone, PEEK, and polymide bearing materials.
PRODUCT SCHEMATIC
This bearing is based on the same filament wound structure as the PolyLube MRP bearing and has the same wear liner. The result is that the HT bearing has a high static and dynamic load capacity. The HT bearing is also inherently self-lubricating through the same film transfer process as the Fiber Series bearing.
The result of a higher temperature resin matrix, the same high strength filament wound backing, and the same self-lubrication process combine to make the HT bearing an ideal solution for high temperature applications.
APPLICATIONS
PolyLube High Temperature applications are not just for elevated temperature environments but also for applications where the bearing may need to resist thermal expansion during operation. One example of this is in snowmobile clutch markets. In these applications, the clutch speed goes from 0 to very high RPM’s in micro-seconds (and vice versa). During this cycling, friction is rising because speed is being dramatically increased. As the friction goes up so does the temperature of the associated components. A high temperature composite bearing material can resist these expansion phenomena and as a result offer better long term wear, improved bearing durability, and less seizure opportunity than conventional metal bearing materials.
