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Sleeve Bearing Motor Applications


Improve Operational Excellence And Profits.

Sleeve bearing motors are a critical asset in any industrial operation. Ineffective internal labyrinth seals, however, allow oil to be drawn into the motor windings – coating them, degrading the insulation and causing the windings to overheat. Ineffective labyrinth seals on the drive end allow contamination to enter the bearing housing. Both conditions lead to unscheduled downtime, expensive repair and safety issues.

Effectively seal your bearing housing with Inpro/Seal® custom engineered solutions. Inpro/Seal Sleeve Bearing Motor Bearing Isolators permanently protect the windings from oil contamination and protect the bearings from external contamination. The solution utilizes a unitary design to expel lubricant back to the bearing sump and away from the windings, while also accommodating shaft rise and axial movement during startup and shutdown.



Count on us to improve sleeve bearing motor reliability and increase mean time between repair (MTBR). With more than 30 years of experience, we are the trusted source of Bearing Isolator technology. To get started, call 888-980-4431 or locate your local Inpro/Seal representative. To request a quote, download the Sleeve Bearing Motor RFQ and submit it through our contact form.


Facts At A Glance

The Inpro/Seal Sleeve Bearing Motors Bearing Isolator:

  • permanently protects motor windings and bearings.
  • accommodates axial movement.
  • can be split for ease of installation.
  • is maintenance free.
  • is a direct retrofit; no housing modifications on most motors.
  • can be designed with an air purge for 2-Pole motors.