Ball bearings are mechanical components composed of rolling spherical elements that are trapped between a circular inner ring and an outer ring.They provide a means of supporting a rotating shaft and minimizing friction between the shaft and a fixed machine member.Ball bearings are mainly used for machines with low friction rotating shafts that need support.There are several configurations, the most obvious being shielded or sealed.Ball bearings are standardized to allow interchangeability.Ball bearings are also known as rolling element bearings or antifriction bearings.Considerations include
Preferred for high speed or high precision applications
Large-scale standardized forms
Handles radial and axial loads with specific configurations
Roller bearings are mechanical components composed of cylindrical or tapered rolling elements, usually captured between the inner and outer rings.They provide a means of supporting a rotating shaft and minimizing friction between the shaft and a fixed machine member.Roller bearings are mainly used for machinery with a rotating shaft, which requires heavier load support than ball bearings.Tapered roller bearings are usually used to accommodate higher thrust loads in addition to radial loads.Types range from cylindrical rollers to spherical rollers.Roller bearings are standardized like ball bearings, although to a lesser degree.Considerations include
Higher carrying capacity than ball bearings
Can it withstand high axial loads
Mounting bearings are mechanical components composed of bearings in bolted or threaded mounting assemblies, including pillow blocks, flange units, etc.They provide a means of supporting a rotating shaft and minimizing friction between the shaft and a fixed machine member.Mounting bearings are mainly used in machinery with exposed rotating shafts.They are used as a coiling device at the end of the conveyor and a flange unit along the intermediate point.Bearings may be rolling elements or journal bearing configurations.Mounting bearings are designed for bolted mounting and easy replacement.Other types of mounting bearings include rod-end bearings and CAM followers.Considerations include
Placement units reduce the growing concern over protection issues
Cartridge design is easy to replace
Shafts are usually secured with setting screws
Allows you to adjust the supported components
Mainly used in low to medium speed applications
A linear bearing is a mechanical component captured in a housing by a ball or roller element to provide linear motion along an axis.Linear bearings are mainly used for machines that require linear movement and positioning along the axis.Depending on the design, they may also have secondary rotation characteristics.Considerations include
Compared to bushings, friction is lower and accuracy is higher
More expensive and complex than bushing
Plain bearings are a mechanical component designed to provide one-dimensional free movement between structural components.Sliding bearings are mainly used for structural support of Bridges and commercial and industrial buildings.These components accommodate thermal motion, allow end beam rotation, and insulate structural components from vibration, noise, and shock.Other types of plain bearings include plain bearings for truss floor plates, heat exchangers, and process equipment.
Gem bearings are mechanical devices used for light rotating applications, such as watches, instrument devices, gyroscopes, etc., with small load and small supporting shaft.Gem bearings are made from a range of synthetic materials, of which rubies and sapphires are particularly common.
Friction free bearings are mechanical or electromechanical alternatives to traditional bearings to provide controllable shaft support through air, magnetic fields and other critical, high-precision applications.