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Ball Bearing - Flange Bearings
Flange bearings are especially engineered to provide a precise mounting fit for ball bearings. This is executed via axial location of the bearings' shaft ends, stabilizing the bearings' positioning and consequently maximizing the load support. When utilizing a ball bearing where the shaft axis is perpendicular to the mount, flange bearings facilitate rotary or linear movement.
There are numerous types of flanges, and both their designs and their cages are engineered to suit their corresponding ball bearings, in order to optimize their loading and speed capacities, and allow the two devices to function in unison. The flange bearings are screwed in relation to the shaft axis. Thus, the mechanism is comprised of an insert attached to a relatively flat housing structure.
Flange bearings are often equipped with an easy to install spherical ball that offers a pivoting angle in order to relieve misalignment. The bearings are characterized for being highly sturdy, maintenance-free, dirt-resistant, water-resistant, and able to adapt to an array of room temperatures.
Since flange bearings are designed to increase positioning accuracy, there is a myriad of model availability, each designed to suit particular ball bearing functions and requirements. When selecting a flange bearing, the dimensions should suit the diameter of the shaft, and they are thus available in a myriad of sizes. The largest differentiating factor between flange bearings is the number of bolts (mounting holes) on the mechanism.
Two-bolt flanges: these flanges are available either in a wing-shape or in a diamond shape, and have two mounting holes, (usually elongated for simple, user-friendly adjustment). They are engineered to be repositioned and aligned for the shaft's best fit.
Three-bolt flanges: these flanges are round, and have three equidistant mounting holes. They are engineered to be repositioned and aligned for the shaft's best fit.
Four-bolt flanges: these flanges are square shaped, and have four equidistant mounting holes. Due to their larger number of positioning bolt-holes, they are more stable than their two-bolt counterparts, and thus have a greater load-capacity. They are engineered to be repositioned and aligned for the shaft's best fit.
Flange bearings are usually made from cast iron or thermoplastic material. However, some manufacturers produce plastic flange bearings. These polymer bearing offer a more cost-effective option to metal flanges. They are backed by a thin construction to compensate for the lost width, and thus maintain the stability and temperature resistance offered by their metal counterparts.
Flange bearings are typically utilized in various industrial sectors, including, but not limited to plant construction, automation, agricultural machinery, machine construction, conveyor technology, and the food industry. Their biggest advantage is the lack of maintenance required for effective performance.
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