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TORB toroidal roller bearings

Product description
Schaeffler rolling bearings and plain bearings: TORB toroidal roller bearings

The FAG TORB toroidal roller bearing is a new rolling bearing type from Schaeffler. It is a single-row rolling bearing with long, slightly crowned rollers. As a non-locating bearing, it combines the self-alignment capabilities of a spherical roller bearing with the axial displacement of a cylindrical or needle roller bearing.

TORB bearings provide an ideal, reliable solution to the problem of locating/non-locating bearing supports. The axial displacement is compensated inside the toroidal roller bearing so the frictional forces that occur are very small and therefore negligible.

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Highlights

TORB highlights

The toroidal roller bearing combines the angular adjustment facility of a spherical roller bearing with the axial displacement of a ribless cylindrical roller bearing.

  • Very high radial load-carrying capacity
  • Very high running accuracy (P5) throughout the entire range
  • Dimensional stability up to 200 °C
  • High operational reliability
  • Long operating life
  • Compact design
  • Low-friction running
  • Compensation of large axial changes in length without constraining forces
  • Up to double the service life of the bearing system
  • Can be used as a 1-to-1 replacement for spherical and cylindrical roller bearings
  • X-life quality
Advantages

Extended service life with TORB

Using a TORB as the non-locating bearing when additional axial loads are present allows the service life of the locating bearing and thus the entire bearing combination to be doubled in some cases.
Using a TORB as the non-locating bearing when additional axial loads are present allows the service life of the locating bearing and thus the entire bearing combination to be doubled in some cases.

Temperature-related linear expansion and misalignments mean that non-locating bearing designs are particularly important. Toroidal roller bearings are perfect as non-locating bearings here:

Reduced overall operating costs (TCO) with TORB

Schematic diagram of replacement parts costs for a locating/non-locating bearing support with TORB compared to a conventional solution.
Schematic diagram of replacement parts costs for a locating/non-locating bearing support with TORB compared to a conventional solution: The locating SRB and non-locating TORB have two and four times the operating life of their conventional counterparts.

The significantly longer service life of a bearing system with TORB bearings compared to that of conventional solutions means that the overall operating costs (TCO) of the application can be greatly reduced:

  • Lower replacement part costs
  • Longer operating periods
  • Less frequent maintenance intervals and machine downtimes
  • Lower mounting and disposal costs
X-life quality

X-life – proven to be better

In these bearings, the raceways have optimized roughness and geometrical accuracy. This gives a higher load-carrying capacity and longer service life. X-life is the premium brand that identifies particularly high-performance products under the INA and FAG brands.

They are characterized by a longer rating and operating life – the result of higher dynamic load ratings than those of current standard products. If the load and design envelope are unchanged, X-life bearings have a longer rating life. Longer maintenance intervals are possible.

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