How to Properly Maintain a Radial Cylindrical Roller Bearing

Whether you're working in an automotive industry or in the oil and gas industry, you should know how to properly maintain a radial cylindrical roller bearing. A radial cylindrical roller bearing is designed to withstand extreme loads while providing smooth, quiet operation. There are a number of factors that affect the life of a radial cylindrical roller bearing, so it's important to understand how to keep it in peak condition.

Wheelset cylindrical roller bearings

Typical cylindrical roller wheelset bearings are available in different types and designs. These bearings act between the wheelset and the rail vehicle. Some designs are manufactured with a tapered bore or with a solid brass cage.

Tapered bearings are recommended for heavy duty applications. They extend the hub length by about three-quarters of an inch. This can improve durability and reduce noise. They also handle the most severe downward forces.

These bearings are also available in a corrosion-resistant version. These bearings are suitable for use in -30 degC to +300 degC. They also include a steel-reinforced rubber seal.

Bearings are available in standard and demountable designs. Some bearings are self-lubricating. Some wheelset bearings are made of Delrin(r), which is a heat-resistant metal. They can be custom-machined for Hamilton wheels.

Wheelset cylindrical roller bearings are characterized by a cage made of brass or glass fibre reinforced polyamide. These bearings are available in all clearance classes.

Full-complement cylindrical roller bearings

Compared to caged bearings, full complement cylindrical roller bearings feature high load-bearing capacity. They are designed to withstand high radial loads and axial forces. They also have low limiting speed and are suitable for compact designs. However, these bearings are not suitable for high speed applications.

Full complement cylindrical roller bearings feature a large number of rollers in their envelope. They have low sectional height in relation to their width. They also have low friction seals. In addition, they feature a self-retaining roller complement. They are also cage-free. They are available in a variety of designs and sizes.

They are available in single row and double row designs. Single row full complement cylindrical roller bearings are suitable for applications that require high radial load capacities. They feature a maximum outer diameter of 120mm. They are also subjected to heat treatment to make them usable at 150 degC.

Compared to caged full complement cylindrical roller bearings, cageless types are smaller and have more load capacity. However, they need to be heated in order to achieve room. In addition, they need to be greased. If you are not sure if they are suitable for your application, you should contact Schaeffler.

Predicting the fatigue life of a radial cylindrical roller bearing

Various industrial applications of rolling bearings require fatigue life prediction methods. However, existing engineering empirical life analysis models do not accurately predict fatigue life of rolling bearings. Therefore, this paper aims to develop a novel model to predict the fatigue life of a radial cylindrical roller bearing. The model takes into account the mean stress and sensitivity of the materials.

The mean stress is one of the most important factors in fatigue life. Various models are available that predict fatigue life based on the mean stress. However, these models do not account for the constitutive behavior of materials under contact loads.

The authors propose a new methodology based on the analytical solutions for the elliptical and line contact. This methodology is intended to replace the time consuming and expensive FEM calculations. It also includes the multiaxial high-cycle fatigue criterion.

The authors conducted computational studies of various types of bearings and obtained statistical data on the proposed model's performance. It was found that the proposed model's predictions were on par with the life tests conducted for arbitrarily selected bearings. The results showed that the model is more accurate than the conventional SWT model.

Maintenance procedures for radial cylindrical roller bearings

Using proper maintenance procedures on radial cylindrical roller bearings is important. This will help you extend their life and reduce the risk of failure. You should also make sure that the bearing is in good condition.

Proper lubrication is very important for roller bearings. Incorrect lubrication can quickly lead to bearing degradation and wear. A proper lubricant can form a protective film on the rolling elements to help dissipate frictional heat.

Generally, the lubricant should be clean and free of dust, dirt, and contaminants. It should also be stored in a cool and dry environment.

The bearing industry also offers training on installation and maintenance. These experts can also provide a repair estimate for your bearing. The estimate will include a visual and dimensional analysis, as well as a price for repair. They can also inspect your equipment. They can also set up thermal imaging sensors to monitor the condition of your equipment safely.