Albany, NY -- (SBWIRE) -- 01/08/2018 -- There are different elements in machines, bearings being one of them, which allow the movement of the machine components along each other. Bearings are an important integral part of any object, to emphasize this, bearings support sky scrapers during earthquakes by offering them some movement. In fact even human beings whose joints involve sliding contact bearings, would come to a stop if they stop working. Double row self-aligning bearings are applicable in situations where extreme misalignment prevails either from shaft direction or mounting direction. They have balls in two rows (hence double row), two uninterrupted deep grooves of raceways in the inner ring and a common spherical canal in the outermost ring.
They are called self aligning owing to their construction which helps them to allow correct alignment with the assembly and the shaft. They are designed to endure small angular misalignments which generally occur due to the mounting or shaft deflection. These bearings are used to carry radial loads and small amounts of axial loads. They have a solid brass cage, press steal cage and a nylon cage. The material used are brass, sheet metal and synthetic resin. Different types of cages are used with respect to the applications.
Double row self-aligning bearings are of two types namely, double row self-aligning bearing with cylindrical bore and double row self-aligning bearing with tapered bore.
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Double row self aligning bearings with cylindrical bore: this type of bearing ensures self-alignment automatically. It can resist error in the angle between bearing housing and the shaft and hence it is well suited for applications in which skew shaft centring due to eccentricity and shaft deflection are present. These type of bearings have small internal friction and hence it shows small rise in temperatures even if higher speeds are applied.
Double row self aligning bearings with tapered bore: these bearings have similar features to the double row self-aligning bearings with cylindrical bores. In tapered bore type, the bearings have a normal tapered bore (1:12 tapering) and bearing clearance can be adjusted while mounting on the tapered shaft. These type of bearings bear slight axial loads but mainly withstand radial loads. These bearings have similar applications as those of deep groove ball bearings but these type of bearings can withstand higher amount of loads than deep groove ball bearings.
Double Row Self Aligning Bearings Market: Advantages
There are several advantages of double row self-aligning bearings apart from their self-aligning nature to accommodate dynamic and static misalignment. They produce less friction than any other type which helps them to lower the temperature and maintain it even when running at high speeds. The maintenance cost involved is also less. Owing to less heart generation, the life t=of the bearings are enhanced thereby improving their durability and increasing their versatility. They have very less minimum load requirements which makes them even more versatile. These bearings also reduce vibrations and noise levels. They can be mounted and dismounted with ease and convenience.
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Double row self-aligning bearings are used in various industries and applications such as in precision meters, automobiles, low noise electric motors, motorcycles, transmission shafts in textile machines, woodworkers, mining machinery, plastic machinery, electromechanical equipment, medical equipment, office equipment, fitness equipment and other general machinery.
The key companies in the spherical roller bearing market include Schaffler, SKF, Timken Company, JTEKT, NSK Ltd. and NTN Corporation. Other players are Aurora Bearing, AST Bearings LLC, NBC Bearings, FYH Bearing, Baltic Bearing Company, Nachi Europe GmbH and Precision Bearings Pvt. Ltd.