For most industrial businesses, a flange is a device used particularly in connecting pumps, valves, pipes, and other related pieces in order to generate a working pipe system. It is essential in such a way that it allows different industries to create and build different systems, as well as allowing easy access during inspection, adjustment, and access to cleaning up certain vital areas. A flange is specifically screwed towards certain devices and then connected with the use of different types of bolts. When bearings have a flange on the external ring, it tends to simplify the axial setting. Hence, a flange bearing is used when a shafts axis is at a 90 degree angle towards the bearing mounting surface.
A flange bearing provides a technique of precise mounting, and you will discover that these will come in a variety of configurations. There are three main hole configurations. For one, 2-bolt flanged bearings are diamond in shape with two mounting holes. 3-bolt flanged bearings are another type which is spherical in form with three evenly mounting holes. Finally, 4-bolt flanged bearings are either round or square in shape along with four mounting holes. Always keep in mind that when choosing suitable bearings, it is very important that you are aware of the multiple shaft sizes and both thrust and radial load requirements.
There are a variety of different types of flange bearings which will include plain bearings, roller bearings, needle roller bearings, and ball bearings. Plain bearings, or sometimes called bushings, journals, or a sleeve bearing is used to guide and limit friction in either linear or rotary applications. The rolling component for a roller bearing is the use of a roller. While also being true a needle roller is for a needle roller bearing. The latter is designed to be use for most radial load applications. Moreover, a ball bearing is utilized in order to provide less friction and smooth action in most spinning applications. Sufficient lubrication is necessary for all types of bearings as this can limit wear, and too much pressure.
Specifically, there are three main types of roller bearings and these include tapered, spherical, and cylindrical. The spherical roller bearing is the most common type of flange roller bearing. This is because it is self-aligned in a double row, and mostly a combination of a thrust and radial bearing. In addition to the information provided above, it is important to consider the size of the shaft and the entire height of the mounting surface when you are dealing with flange mounted bearings.
The shaft size signifies the highest diameter of the shaft while the entire height of the mounting surface is considered when you’re dealing with low clearance applications. For the choice of covering or housing material for a flange bearing, you will be able to choose between stainless steel, cast iron, pressed steel, and plastic. However, for the material for bearing itself, it includes graphite or a metal alloy, stainless steel, sintered iron, steel, and plastic. Lastly, if you’re dealing with making a secured shaft, keep in mind that the use of a set screw and a locking collar may be needed. Also when it comes to lubrication consider self-lubrication or sealed bearings.