Bearing Protection

Pumps, motors, and other rotating industrial equipment require effective and permanent bearing protection. Protecting bearings from premature failure is critical to the reliability of rotating equipment in industrial process industries. We are proud to be the exclusive distributor for the Inpro/Seal Company in Northern California and stock a variety of common styles and sizes to respond quickly to your requests.

The Inpro/Seal Bearing Isolator

inproThe Inpro/Seal Company manufactures a Bearing Isolator that provides the highest level of bearing protection available. Inpro/Seal Bearing Isolators are made of high quality bronze and designed to last for at least 100,000 hours compared to the common lip seals which usually fail after only 3,000 hours. With the latest engineering and manufacturing technology, Inpro/Seal can meet your reliability requirements with seals designed specifically for your equipment with quick, timely deliveries.

This two-part dynamic seal consists of a stator press-fitted into the bearing housing and a rotor attached to the shaft. The rotor and stator form a non-contact, compound labyrinth, so there is nothing to wear out.

It protects two ways:
arr Bearing lubricant is captured in the inner portion of the labyrinth and flows back to the bearing housing
arr Outside contamination attempting to enter the bearing housing is captured in the outer labyrinth paths and expelled through a port in the stator by centrifugal force and gravity

Inpro/Seal Bearing Isolators install easily on most shafts, even damaged ones. There's even a split seal for large shafts to simplify installation.

The Inpro/Seal Bearing Isolator is the industry standard for bearing protection and is now standard equipment on IEEE-841 motors manufactured by all major motor manufacturers in the United States, Taiwan, Korea, Canada, and Mexico.

Please contact one of our Applications Specialists or customer service representatives to discuss how we can help you with your specific application.

For more information, please visit the supplier's website at:

Please download this form, complete it and fax or email to your Pan-Pacific Supply customer service representative to specify your Inpro seal.

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