Types of Crossed Cylindrical Roller Bearings

There are several different types of crossed cylindrical roller bearings. They are designed for axial, moment, and radial loads. They may be made of steel with a high carbon content or plastic cages. Their travel length and cage diameter are dependent on the application and the available space.

High carbon grades of steel

High carbon grades of steel are used to manufacture roller bearings. These steels are hardened to a higher degree than ordinary steels. Depending on the size and application, high carbon steels are case hardened or thoroughly hardened. The carbon content of these steels affects the process of spheroidization and the subsequent heat treatment of the bearing components.

Cylindrical roller bearings are used in a wide variety of applications, including mining, petroleum production, power transmission, and cement processing. They can also be used in metal recycling. Other applications include briquetting machines, rubber mixing equipment, paper machinery, and construction equipment. In addition, some types of cylindrical roller bearings are used in electric motors, blowers, and gears and drives.

Plastic cages

Plastic cages for cylindrical roller bearings are made of a plastic material. Their outer surface has semi-circular grooves, which are used to add lubrication to the bearing. The depth of these grooves also influences the push-out force that a cage can withstand. Another important geometrical parameter is the angle of the retention tab. This angle defines the tab's distance from the rest of the pocket and creates an undercut feature.

The materials used in plastic cages are usually made from PPA, PA66, PPA, PEEK, or polyethylene. These materials are typically used in large quantities and require process automation.

Suitable for space-constrained applications

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Designed to withstand radial, axial, and moment loads

Crossed cylindrical roller bearings are used in industrial applications where radial, axial, and moment load distribution is crucial. These bearings are used in high-speed machinery, medical facilities, and industrial automatic robots. They have a small elastic deflection and are ideal for applications requiring tightness, rigidity, and high speed.

A typical cross cylindrical roller bearing is made of two cylindrical rollers, one on each side. These cylindrical rollers are held together by an outer cage. The radial component of these bearings is seated on a steel ring. The rollers are surrounded by a polyamide PA66-GF25 cage. The cages are made of a material that allows them to work continuously under low temperatures.

Provides a full line of contact

Cylindrical roller bearings are available in different configurations, including single-row and double-row. Single-row bearings are the most common type, thanks to their ease of assembly and separability. Double-row bearings, on the other hand, are more rigid and have higher radial load capacity. Cylindrical roller bearings are also divided into types according to the location of the ribs.

Cylindrical roller bearings must accommodate sufficient radial loads for smooth and trouble-free operation. In continuous operation, a radial load of P>C0r/60 must be applied. However, in some cases, external forces and the weight of the supported part can cause this load to be higher than the minimum value.