Double row tapered roller bearings

RKB double row tapered roller bearings are produced in several configurations (TDO, TDOS, TDI, TDIS) to support combined forces and locate the shaft in both directions. Manufactured with a given axial clearance (BEP), they can fully exploit their potential in a variety of applications. In order to manufacture products with the highest possible resistance to fatigue and wear, RKB makes use of different bearing steel grades and special heat treatments.

Main types

  • Type TDO

    • One ribless outer ring (one double cup)
    • Two inner rings with two ribs each (two single cones)
    • Two one-piece window type pressed steel cages
    • One single spacer between inner rings (plain or with lubrication grooves and holes)
    • Supports radial and axial loads in both directions
    • High arrangement stiffness
    • Reduced angular misalignment
    • Optimized roller profile
    • Preset or adjusted BEP on customer’s request
    • Available in metric and inch sizes
  • Type TDISS with steep contact angle

    • Two ribless outer rings (two single cups)
    • One inner ring with three ribs (one double cone)
    • Two one-piece window type pressed steel cages
    • Lateral seals for contaminant exclusion
    • Supports axial loads in both directions
    • Designed with increased contact angle
    • Suitable for high axial load carrying capacity
    • Available with steel pin-type cage and pierced roller design
    • Available with one or more antirotation keyway slots on each side of double cone
    • Available in metric and inch sizes
  • Type TDI

    • Two ribless outer rings (two single cups)
    • One inner ring with three ribs (one double cone)
    • Two one-piece window type pressed steel cages
    • One single spacer between outer rings (plain or with lubrication grooves and holes)
    • Supports radial and axial loads in both directions
    • Optimized roller profile
    • Preset or adjusted BEP on customer’s request
    • Available in metric and inch sizes
  • Type TDIS with retention sleeve

    • Two ribless outer rings (two single cups)
    • One inner ring with three ribs (one double cone)
    • Two one-piece window type pressed steel cages
    • Preset or adjusted BEP on customer’s request
    • Designed with increased contact angle
    • Suitable for high axial load carrying capacity
    • Available with one or more antirotation keyway slots on each side of double cone
    • Outer bush with annular groove and lubrication holes
    • Available in metric and inch sizes
  • Type TDONASW

    • One ribless outer ring (one double cup)
    • Two inner rings with two ribs each (two single cones)
    • Two one-piece window type pressed steel cages
    • Lubrication grooves in cones internal side face
    • Lateral shields or seals for contaminant exclusion
    • Execution without spacer
    • Supports radial and axial loads in both directions
    • High arrangement stiffness
    • Optimized roller profile
    • Preset or adjusted BEP on customer’s request
    • Available in metric and inch sizes
  • Type TDISS with retention sleeve

    • Two ribless outer rings (two single cups)
    • One inner ring with three ribs (one double cone)
    • Two one-piece window type pressed steel cages
    • Lateral seals for contaminant exclusion
    • Preset or adjusted BEP on customer’s request
    • Designed with increased contact angle
    • Suitable for high axial load carrying capacity
    • Available with one or more antirotation keyway slots on each side of double cone
    • Outer bush with annular groove and lubrication holes
    • Available in metric and inch sizes
  • Type TDIS with steep contact angle

    • Two ribless outer rings (two single cups)
    • One inner ring with three ribs (one double cone)
    • Two one-piece window type pressed steel cages
    • Supports axial loads in both directions
    • Designed with increased contact angle
    • Suitable for high axial load carrying capacity
    • Available with steel pin-type cage and pierced roller design
    • Available with one or more antirotation keyway slots on each side of double cone
    • Available in metric and inch sizes