The Double Runner Bearing Isolator permanently protects non-flooded gearboxes.

The Double Runner Bearing Isolator is a three-part compound labyrinth seal, consisting of a stator and dual rotors, that permanently protects against contamination ingress and lubrication loss for gearboxes with non-flooded shafts. Using both an inboard and outboard rotor, the Double Runner Bearing Isolator increases oil retention while maintaining premium contamination exclusion.

Features and Benefits

  • XX Interface – unique stator/rotor interface provides permanent protection against contamination ingress
  • Contamination Chamber – collects contaminants trying to enter the bearing housing and expels them through the expulsion port through centrifugal force and gravity
  • Inboard Rotor – a secondary rotor to improve oil retention
  • VBX® Ring – blocks the transfer of vapor contamination created by heating/cooling of the bearing enclosure

Technical Data

  • Standard Material – Bearing Bronze
  • Axial Movement – 0.13 mm (0.005 in.)
  • Radial Movement – 0.38 mm (0.015 in.)
  • Temperature Range – -26°C (-15°F) to 121°C (250°F)
  • Speed – 10,000 sfpm
  • Standard Overall Length – 28.58 mm (1.125 in.)
  • Shaft Size – 15.88 mm (0.625 in.) to 381 mm (15.000 in.)

Consult an Inpro/Seal representative for operating conditions outside of limits shown.

Same-Day Shipments

Inpro/Seal is committed to making sure you have the right technology, right when you need it. We know that time is money. That’s why we offer same-day shipments on most Bearing Isolators, even new and custom designs. If you require same-day shipments on an Inpro/Seal Bearing Isolator, contact your local Inpro/Seal Representative.

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Count on us to improve equipment reliability through permanent bearing protection. With over 40 years of experience, we are the trusted source of Bearing Isolator technology.

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