Rolling element bearings are possibly the most common forms of bearings. They ideally operate by carrying a load by placing diverse rolling elements like rollers or balls between two rings, also known as races. The cylindrical roller bearing is one of the most common types of roller bearings. As its name implies, such bearings use cylinders to reduce friction between moving parts.
Cylindrical bearings are meant to handle the radial load at high speed and performance. Owing to its specific design, cylindrical roller bearing shall be well-suited for carrying multiple radial loads. However, there are certain other factors too that influence the ultimate performance or outcome of this apparatus. To get the best possible results from these bearings, you need to optimize their durability, load capacity, weight, and performance. As such bearings are used for the long term; you need to choose the suitable variation as per your needs with care.
Design
Cylindrical roller bearings feature two rings. These outer and inner rings are separated by a set of cylinders. The cylinders not just support both rings, but also help in reducing the frictional force, on the whole. These cylinders additionally are supported by a cage or rib attached to either the outer or inner ring, depending on the variation used by you. The number of cylinders or rollers used in a cylindrical roller bearing, on the other hand, might vary. The increase in its number shall be an increment in overall performance.
Applications
A cylindrical roller bearing would be important to almost any machinery that comes with rotating parts. These bearings are extensively used in pumps, the papermaking industry, wind turbines, electric motors, motorcycles, railways, and gearboxes. The use of cylindrical roller bearings, however, is not limited to these industries and systems. Owing to their high durability and performance under stressful conditions, such bearings have a pretty long list of applications.
Structure and material
Cylindrical roller bearings can be made with a variety of materials, depending on their application. Allow steel is one of the most popular materials used to make such bearings, as it provides a high degree of durability to its rings, rollers, and also roller cage. To achieve improved performance with high speed, carrying capacity, and acceleration, without sacrificing durability, cylindrical roller bearings can be made with pressed steel as well. In certain situations, polyamide cages are also used.
Models and variations
Broadly speaking, there are three variations of cylindrical roller bearing, which include multi-row cylindrical roller bearings, double-row cylindrical roller bearings, and single-row cylindrical roller bearings.
The single-row bearings come with a single set of inner and outer rings, along with a single set of cages and rollers. Double row bearings are pretty simpler than the single row variants, except they come with two sets of inner and outer rings, as well as two sets of rollers and cage. Double-row bearings are majorly used in precision machines due to their increased accuracy and strength. Multi-row bearings conversely are known to provide high carrying capacity with lower performance.
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