Cylindrical Roller Bearings

Cylindrical roller bearings are designed to carry heavy radial loads. They have a number of advantages, including high radial load capacity, resistance to fatigue, and simplicity of mounting and dismounting. Several industries use cylindrical roller bearings, such as steel manufacturing, metal recycling, mining, power generation, and cement production.

SKF offers cylindrical roller bearings, which are available in a variety of designs, materials, and finishes. They are manufactured with either a cage or inner and outer rings, depending on the specific application. In most cases, they are constructed with low carbon steels. NTN also offers cylindrical roller bearings, which are case carburized or through-hardened.

Cylindrical roller bearings can be divided into two types: single row and full complement. Single row cylindrical rollers have a cage and the outer ring is separated from the inner ring. The cage is usually made of pressed steel, but some models are molded polyamide resin. Some models have snap ring grooves on the outer ring. A single row bearing has a greater radial load capacity. This type is often used in industrial machinery with low speeds.

SKF cylindrical roller bearings are designed to handle axial displacement. These bearings are also able to accommodate high speeds. To minimize vibration, they have a rib and support. Most cylindrical roller bearings are self aligning, but they can be adapted for special applications.

Typically, the cages of cylindrical roller bearings are machined brass or pressed steel. Depending on the bearing's application, oil or grease may be used as lubricant. However, if the bearing is used in an environment with high operating temperatures, the grease may leak. For this reason, a hardened grease should be chosen. Oil is often recommended for applications that have low temperatures and high rotational speeds.

For higher temperatures, or if a boundary lubrication is required, a higher VI-type oil may be recommended. Using a high-quality grease can ensure a long bearing life. It also helps in preventing rust and corrosion.

X-life bearings have longer rating lives and offer a higher dynamic load capacity than standard products. This is mainly because of the Austenite Strengthening process, which increases material life by 1.5 times. This treatment alters the surface chemistry of the rollers, resulting in compressive stresses that increase the bearing's life.

Some bearings have a separable inner ring, which makes it easier to mount and dismount. However, some applications require a full complement. While these are more expensive than single-row models, they provide increased radial load capacity and performance.

Cylindrical roller bearings are designed for high-performance systems. Their design allows for a greater contact area between the rollers and the raceway. This increased contact area helps to distribute loads over a larger surface. Unlike ball bearings, these types of rolling elements can support heavy radial and thrust loads.

Roller bearings have various applications, such as pumps, gearboxes, and electric motors. In the automotive industry, they are used in traction motors. Other applications include wind turbines and construction equipment.