A sealed spherical roller bearing differs from an open spherical roller bearing primarily in terms of its sealing mechanism. Here are the key differences between the two:
1.Sealing Design: Sealed spherical roller bearings are equipped with seals or shields that provide a physical barrier to protect the internal components of the bearing from contaminants such as dust, dirt, and moisture. In contrast, open spherical roller bearings do not have built-in seals or shields.
2.Lubrication: Sealed spherical roller bearings are typically pre-greased and sealed to retain the lubricant within the bearing and prevent external contaminants from entering. Open spherical roller bearings, on the other hand, require periodic lubrication to ensure proper functioning.
3.Maintenance: Sealed spherical roller bearings are generally considered maintenance-free because their seals help keep the lubricant intact and contaminants out, reducing the need for frequent relubrication or maintenance. Open spherical roller bearings may require more regular maintenance to replenish the lubricant and protect against contaminants.
4.Operating Conditions: Sealed spherical roller bearings are suitable for applications where there is a higher risk of contamination or exposure to harsh environments. The seals provide added protection and help extend the bearing's service life in challenging conditions. Open spherical roller bearings are often used in applications where regular maintenance and lubrication can be performed.
5.Availability: Sealed spherical roller bearings may have slightly different designations or part numbers to indicate their sealed configuration. This helps distinguish them from open spherical roller bearings when selecting and ordering the appropriate bearing.
It's important to consider the specific requirements of your application, such as the level of contamination, maintenance preferences, and operating conditions, when deciding between sealed and open spherical roller bearings.
Spherical Sealed Spherical Roller Bearings Bearings ：20000 Series
Spherical roller bearings are designed to accommodate heavy radial loads, as well as heavy axial loads in both directions.
Spherical roller bearings have two rows of rollers, a common sphered outer ring raceway and two inner ring raceways inclined at an angle to the bearing axis. The Centre point of the sphere in the outer ring raceway is at the bearing axis. Therefore, the bearings are self-aligning and insensitive to misalignment of the shaft relative to the housing, which can be caused.
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