Tapered Roller Bearings Are a Type of Precision Bearing

Tapered roller bearings are a type of precision bearing that can be used for a variety of applications. Their geometrical characteristics make them ideal for simultaneous acting radial and axial loads. They are typically used in rotating axles. These types of bearings require no maintenance for thousands of kilometers of operation.

Tapered roller bearings are made from an inner ring (cone), outer ring (cup), and cage. The cone is usually a steel cup that is sealed on one side with a contact seal. A tapered roller is mounted in this assembly and is designed to slide along the inner ring raceway. This design ensures that the rollers do not come loose.

Tapered roller bearings are commonly used in back-to-back pairs to support equal axial force. For this reason, the bearings are often preloaded to enhance their rigidity. However, it is important to remember that preloading can lead to excessive friction losses, which can reduce the load carrying capacity of the bearing. Also, external forces can cause the bearing to come loose.

Generally, a matched pair can exceed the maximum limiting speed, nG, specified in product tables, if the operating conditions are taken into consideration. Nevertheless, if the operating conditions do not take into consideration thermal balance, then the limiting speed may be less than the rated speed of the bearing.

To ensure correct installation, bearing dimensions should be checked and verified. If the dimensions are not accurate, they can lead to poor performance, reduced reliability, and increased operating temperatures. In addition, improper adjustments can negatively affect the function of the bearing, as well as its lubrication.

There are a number of mounting options for tapered roller bearings. These include hydraulic, thermal, and mechanical methods. When choosing a mounting method, the diameter of the housing and the abutment shoulders should be adequate to accommodate the bearing rings.

The type of tapered roller bearing to use should be determined based on the radial load capacity. It is possible to obtain a higher radial load carrying capacity by using an enlarged inner ring. Although this increases the weight of the bearing, the radial load is usually higher than the minimum radial load for the application.

Bearings are also available in a wide range of sizes, including inch and metric. Timken manufactures high-precision designs with variable preload capability to maximize machine productivity. The design and machining of the bearings is carefully matched to provide superior accuracy and control. Whether you need a single-row tapered roller bearing, double-row roller bearing, or a ball bearing, Timken can help.

Timken precision tapered roller bearings are designed for a superior level of accuracy. They are available in metric sizes and are manufactured using high-precision components. Typical applications for precision bearings include machine tools, printing presses, and industrial equipment. Timken's team of experienced engineers can assist you with your selection.

As with most products, the proper selection of tapered roller bearings will depend on your application. Consider the radial load capacity, noise, and lubrication.