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BPD - Bearing Protection Device

Orion Engineered Seals

The Orion Engineered Seals BPD represents state of the art bearing technology and is the ONLY non-contacting bearing protection device available. The BPD was designed with an understanding of the nature of the bearing housing environment under all operating conditions and utilizes the laws physics to create what has proven to be the best performing and most cost effective way to protect the bearings of your rotating equipment. Every feature of the BPD is designed to work together as a system.


  • Two Vertical Internal Chambers
  • Internal Static Elastomers
  • Double Contamination Exclusion Chambers
  • Angled Oil Return
  • Angled Interface



  • Redundant Static & Dynamic Contamination Exclusion
  • Static Elastomers
  • Requires No Break-In
  • Split & Solid Seals Perform Identically
  • Superior Lubrication Retention Capability Regardless of Lubrication Method
  • Performs Consistently & Flawlessly From Start Up Through Years of Continuous Operation


How It Works / Under Dynamic Conditions – Uses centrifugal force to take immediate control of the contamination and expels it perpendicular to the shaft. It incorporates a dual contamination expeller system that works in conjunction with internal geometry and an angled rotor/stator interface that expels contamination over 360oF. This allows the expulsion ports, which are found in all traditional labyrinth seals to be minimized or completely eliminated. Expulsion ports are the prime source of contamination ingress.

How It Works / Under Static Conditions – Relies on the natural condensation process which is occurs when vapor change to a liquid state. This is precipitated by temperature and pressure changes. Common examples are when vapor is forced through small gaps or when it comes into contact with a lower temperate surface. As the bearing housing cools it will naturally attempt to draw air in from the outside as it moves to a state of pressure and temperature equilibrium with the outside environment. The BPD’s ICE (Integrated Contamination Exclusion) system protects the bearing housing environment by breaking down the vapor and capturing the condensate and particulate in the two contamination exclusion chambers where it is expelled at the six o’clock position through the weep slot or angled interface. One of the many features that make the BPD unique is the ICE system. The ICE system enabled Orion engineers to eliminate the traditional expulsion port, which is a major source of contamination ingress and replace it with a very small ‘weep’ slot. In some cases the weep slot was completely eliminated.