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Toroidal roller bearing - The perfect solution for demanding applications
Toroidal roller bearings, also known as CARB bearings, offer a unique combination of angular movement and axial displacement. These bearings are specifically designed to accommodate misalignment without additional load and ensure smooth axial movement. This makes them ideal as non-locating bearings in self-aligning bearing arrangements. Toroidal roller bearings are used in a wide variety of industries, including metalworking, papermaking, and many other applications where high loads and precise movement are required. Advantages of toroidal roller bearings:
- High load capacity: Toroidal roller bearings can accommodate high radial loads and are therefore ideal for high-load applications.
- Self-aligning: These bearings compensate for misalignments, similar to spherical roller bearings or self-aligning ball bearings.
- Axial displacement: They compensate for the thermal expansion of the shaft and enable smooth axial movement.
- Long service life: Thanks to the special roller profile, load peaks at the roller ends are prevented, resulting in a longer service life.
- Low friction: The self-guiding rollers keep bearing friction and operating temperature low, which increases efficiency.
- Reduced noise: Toroidal roller bearings can reduce noise and vibration levels, making them ideal for applications such as paper machines or blowers.
Types and series of Toroidal roller bearing
Toroidal roller bearing C22
Similar to Spherical roller bearings series 222 but with single row rolling elements and offers the advantages of a cylindrical roller bearing and an angular contact ball bearing
Toroidal roller bearing C23
Similar to Spherical roller bearings series 223 but with single row rolling elements and offers the advantages of a cylindrical roller bearing and an angular contact ball bearing
Toroidal roller bearing C30
Similar to Spherical roller bearings series 230 but with single row rolling elements and offers the advantages of a cylindrical roller bearing and an angular contact ball bearing
Toroidal roller bearing C31
Similar to Spherical roller bearings series 231 but with single row rolling elements and offers the advantages of a cylindrical roller bearing and an angular contact ball bearing
Toroidal roller bearing C32
Similar to Spherical roller bearings series 232 but with single row rolling elements and offers the advantages of a cylindrical roller bearing and an angular contact ball bearing
Toroidal roller bearing C39
Similar to Spherical roller bearings series 239 but with single row rolling elements and offers the advantages of a cylindrical roller bearing and an angular contact ball bearing
Toroidal roller bearing C40
Similar to Spherical roller bearings series 240 but with single row rolling elements and offers the advantages of a cylindrical roller bearing and an angular contact ball bearing
Toroidal roller bearing C41
Similar to Spherical roller bearings series 241 but with single row rolling elements and offers the advantages of a cylindrical roller bearing and an angular contact ball bearing
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Design features
- Self-aligning: Toroidal roller bearings compensate for misalignments, similar to spherical roller bearings or self-aligning ball bearings.
- Axial displacement: These bearings compensate for the thermal expansion of the shaft and enable smooth axial movement.
- Long service life: The special roller profile prevents load peaks at the roller ends, resulting in a longer service life.
- Low friction: The self-guiding rollers keep bearing friction and operating temperature low, which increases efficiency.
- Reduced noise: Toroidal roller bearings can reduce noise and vibration levels, making them ideal for applications such as paper machines or blowers.
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Assembly instructions
- Measuring radial clearance: Before and after mounting the bearing, the radial clearance must be determined using feeler gauges.
- Axial fixation: When axially fixing toroidal roller bearings, the degrees of freedom with regard to axial displacement and tilting must be taken into account.
- Clearances: Care must be taken to ensure that the appropriate connection dimensions are observed in order to avoid possible contact with safety elements or the environment.
