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What is a Spherical roller thrust bearing?

wallpapers News 2021-09-07
What is a Spherical roller thrust bearing?
The spherical roller thrust bearing is a rolling-element bearing of thrust type that permits rotation with low friction and permits angular misalignment. The bearing is designed to take radial loads and heavy axial loads in one direction. Typically, these bearings support a rotating shaft in the bore of the shaft washer that may be misaligned in respect to the housing washer. The misalignment is possible due to the spherical internal shape of the housing washer.
Thrust spherical roller bearings and spherical roller bearings are roughly the same, seat ring raceway surface is with the bearing center axis on the same point as the center of the spherical surface, this type of bearing roller for the spherical type, therefore, with automatic centering function, the coaxiality and shaft deflection is not very sensitive.
Spherical roller thrust bearing structure
Spherical roller thrust bearings consist of a shaft washer (for radial bearings often called "inner ring"), a housing washer (for radial bearings often called "outer ring"), asymmetrical rollers, and a cage. There are also bearing units available that can take axial loads in two directions.
Spherical roller thrust bearing features
Spherical roller thrust bearing outer ring and bearing housing hole should not be used with interference, the inner ring and journal fit should not be too tight, the requirements in the installation using the nut adjustment should be able to make it produce more flexible axial displacement. Because the spherical roller bearing if the use of interference with, easy to make the bearing contact angle change, resulting in uneven bearing load distribution, causing the high-temperature rise. Therefore, this kind of bearing inner and outer ring and shaft journal and bearing seat shell hole installation with generally should be two thumbs can just push the bearing into the shaft journal and shell hole for the best.
For the installation of spherical roller bearing axial clearance, available on the journal adjustment nut, adjust the shim and bearing housing hole thread, or with preload spring and other methods to adjust. The size of the axial clearance, and bearing installation arrangement, bearing distance, shaft, and bearing seat material, can be determined according to the working conditions. For high load high-speed spherical roller bearing, adjust the clearance, must consider the temperature rise on the axial clearance, the temperature rise caused by the clearance reduction is estimated, that is to say, the axial clearance to be properly adjusted to a larger. For the low speed and bear the vibration bearing, should take no clearance installation, or apply preload installation. The purpose is to make the spherical roller bearing roller and raceway produce good contact, load uniform distribution, to prevent the roller and raceway by vibration impact was destroyed. After adjustment, the size of the axial clearance with a micrometer test. The method is to fix the micrometer in the body or bearing seat, so that the micrometer contacts the top shaft clean surface, along the axial left and right push axis, the maximum swing of the needle is the axial clearance value.
Spherical roller thrust bearings application
Spherical roller thrust bearings are used in industrial applications, where there are heavy axial loads, moderate speeds, and possibly misalignment.
Spherical roller thrust bearings supplier
Wuxi Spark Bearing Co., Ltd is a modern high-tech professional high-quality roller bearing manufacturer integrating R&D, manufacturing, sales, and service. Our bearings are mainly supplied to OEM customers in many industries, such as mining, petroleum, chemical, coal, cement, heavy machinery, wind power, construction machinery, and other industries. We have a complete supply chain and can provide customers with almost a full range of standard and non-standard customized bearings. Welcome to send an email or click on the product to send an inquiry for the latest price of related bearings.

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