Spherical Roller Bearings: The First Suitable Cage and Application

Source: Bearing Network | Date: January 23, 2014

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Spherical roller bearings are specifically designed to handle heavy radial and axial loads. These bearings feature spherical rollers positioned between the outer race with a spherical groove and the inner race with two parallel grooves. Depending on their internal structure, they are categorized into four types: R, RH, RHA, and SR. The curved design of the outer race allows for self-alignment, making them ideal for applications where shaft or housing misalignment may occur. This type of bearing can accommodate both radial and bi-directional axial loads. It is especially suitable for high-load and impact conditions. Tapered bore bearings can be mounted on the shaft using either a taper sleeve or a locknut. Common ratios include 1:30 (auxiliary code: K30), which applies to the 240 and 241 series, and 1:12 (auxiliary code: K), which is used for other series. The outer ring can be equipped with oil holes, oil grooves, and positioning pin holes. Similarly, the inner ring can also have oiling features. The first applicable cages for these bearings include copper alloy machined cages, steel stamping cages, pin cages, and synthetic resin molded cages. These bearings are widely used in various industries such as papermaking machinery, gearboxes, railway vehicle axles, rolling mill gear boxes, crusher units, vibrating screens, printing machines, woodworking equipment, and industrial speed reducers. They are particularly useful in vertical, seated, and self-aligning applications. In addition to their structural advantages, spherical roller bearings are known for their durability and reliability in harsh environments. Their ability to adjust to misalignment reduces wear and extends service life, making them a preferred choice in many mechanical systems. If you found this information helpful, feel free to share it with your colleagues or friends. Let us know your thoughts by leaving a comment below.

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