Combined radial/thrust bearing for high forces

Combined radial/thrust bearings hold a special position among rolling bearings: They are capable of simultaneously handling very large radial and axial forces and are characterized by their particularly compact design. Findling Wälzlager offers combined bearings in a wide variety of designs and rolling member pairings.

Combined bearings correspond to an integrated assembly. They can support radial loads and, depending on their design, they can also support high axial loads on one or both sides. Radial/thrust bearings can absorb very high radial and axial forces. Findling offers combined bearings in a wide variety of designs and rolling element pairings. The types of bearings that are to be processed depends on the area of application. Findling Wälzlager GmbH offers a wide variety of rolling element combinations, such as a ball bearing and needle-roller bearing pairing for lower axial loads or a solution based entirely on cylindrical roller bearings for very high axial loads. The radial and axial bearing areas work independently of one another. This ensures that these areas do not interfere with each other’s running accuracy. Unlike in conventional bearings, no equivalent load needs to be calculated for combined bearings because each individual bearing part only absorbs either radial or axial forces.

Combined bearings do not require complicated installation and are easy to handle. Users of combined bearings can also achieve a series of improvements over conventional solutions. Instead of using two separate bearings, a single, compact combined system is used. As a result, less space needs to be planned for the bearing mount. Combined bearings are therefore usually used in applications where there are very high forces but not a lot of installation space.

Additional installation space can be saved when using radial/thrust bearings without an inner ring or counter washer. In this case, the shaft serves as a raceway. However, to maintain full load carrying capacity, it has to be hardened in the 58-64 HRC range. Values below 58 HRC are also possible, but this reduces the static and dynamic load rating of the bearing. For example, at a hardness of 52 HRC, the dynamic load rating of the bearing would decrease by a factor of 0.73 and the static load rating would decrease by a factor of 0.96. The load rating ranges go from 2,100 N radially dynamically and 1,900 N statically up to 37,000 N radially dynamically and 86,000 N statically. Axially, the load rating extends from 3,100 N dynamically and 6,300 N statically to 77,000 dynamically and 294,000 statically. The boundary speed range covers 3,000 rpm up to 25,000 rpm. It is also possible to acquire the bearings as precision roller bearings. In this case, a stronger outer ring is used that has a front side which serves as a raceway for the axial part of the bearing. This allows bearings that are axially very rigid and free of play to be created, which are required, for example, in the drive spindles of measurement systems or machine tools.

Radial bearing/thrust bearing

kombinierte Radial/Axiallager sind kompakte, einbaufertige Einheiten für hohe Radialbelastungen und können je nach Auswahl mit Axialkugellager oder Axialnadellager ausgewählt werden.

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