A flanged ball bearing is a type of ball bearing specially engineered to provide a precise mounting. This is done through the axial location of the bearing’s shaft ends, which stabilizes the bearing’s positioning to maximize the load support. When using a ball bearing with a shaft axis that is perpendicular to the mount, flanged bearings facility either rotary or linear movement. There are many types of bearing flanges, each with differing designs and cages tailored to their specific ball bearings to maximize their loading and speed capabilities while enabling the two devices to function harmoniously. Flange bearings are screwed in relation to the shaft axis, meaning flanged roller bearings consist of an insert attached to a relatively flat housing structure.
Bearings of this type are frequently equipped with a spherical ball that offers a pivoting angle to minimize misalignment. The flange bearing is characterized by its sturdiness, lack of need for maintenance, resistance to dirt and water, and its ability to work in a broad range of temperatures.
The most common types of flange bearings are two-, three-, and four-bolt flanges. Two-bolt flanges are available in wing or diamond shape and feature two mounting holes. These flanges are designed to be repositioned and aligned to create the best possible fit. Three-bolt flanges are round and feature three mounting holes equidistant from one another. Four-bolt flanges are square shaped and feature four holes for mounting. Because of their higher quantity of positioning bolt-holes they are more stable than two- and three-bolt counterparts, and therefore offer a greater load capacity. To reduce noise and vibration, each type features a spring-lid oil cap and rubber grommets.
In addition to their many types, flanged bearings come in a broad range of materials. The most common of these are cast iron, lightweight die-cast zinc, pressed steel, nylon, PTFE (polytetrafluoroethylene), acetal polymers, and stainless steel, but many manufacturers also produce flange bearings in plastic. These offer a more cost-effective option to metal flanges. They are backed by a thin construction to compensate for the lost width, and therefore have similar stability and temperature resistance to their metal alternatives. While flange bearings are used throughout a wide array of industries, they are more commonly found in light duty applications such as automated conveyors, belt drives, machine construction, medical processing, as well as certain uses within the food industry and agricultural machinery. Despite their limited temperature range, flange bearings’ resistance to water & chemicals and ability to handle heavy loads make them ideal for food industry processes.
The durability and versatility of flange bearings makes them a highly useful component in many different applications. As they have a critical role in supporting parts and holding important machinery together, it is important to ensure you are getting bearings of the right type and material for your intended applications. Furthermore, to ensure the long-term reliability and service of the bearing, ensure you are buying them from a trusted source.
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