Toroidal roller bearings

RKB toroidal roller bearings (TORB) are single row pure radial roller bearings featuring slim symmetrical barrel rollers, which are properly profiled to give uniform stress distribution and proper roller/raceway contact. These properties keep at bay rolling friction and working temperature. Consequently, the lube film gap remains stable and the lubricant ageing process is slowed down, improving the application reliability. RKB toroidal roller bearings are conceived to be mounted as non-locating bearings, since they can face the thermal expansion along the shaft.

Main types

  • Type J

    • Non-separable compact design
    • Can be used only in a non-locating position
    • Available with tapered and cylindrical bore
    • Very high self-aligning and axial displacement properties
    • The radial internal clearance depends on the rings axial relative position
  • Type V

    • Non-separable compact design
    • Can be used only in a non-locating position
    • Available with tapered and cylindrical bore
    • Very high self-aligning and axial displacement properties
    • Full complement (cageless) design for increased load carrying capacities
    • Reduced maximum rotational speed compared to caged design
    • Asymmetrical permissible axial displacement (limited in snap ring side)
  • Sealed type

    • Non-separable compact design
    • Can be used only in a non-locating position
    • High self-aligning and axial displacement properties
    • Full complement (cageless) design
    • Integral rubber seals on both bearing sides for harsh working conditions
    • Supplied already filled with grease for maintenance free operations