Rotary Seals

Split Rotary Shaft Seals

For sealing dynamic, rotary motion

Split seal example
Split rotary seal installation example
Split seal view

Split Rotary Shaft Seals are made for easy installation.  Shaft removal and dismantling of machinery are kept to a minimum, thus reducing downtime. This design is recommended for horizontal shafts in grease or below centerline in fluidlubricated applications.

Seals can be supplied solid for original build and split for field replacement.

When installing a split seal, a retaining device is needed (i.e., cover plate) for proper axial compression to secure the seal in the housing; the split must be at 12 o’clock position. Both ends of the garter spring are twist connections.

Split Rotary Shaft Seals

These seals are also available in small quantities for repairs and seal replacements within 1-3 days.

Technical Data

Operating Range

Maximum Pressure: Zero pressure

Temperature: -58 to 400°F (-50 to 200°C) depending on seal material

Shaft Surface Speed: Up to 6,000 fpm (30m/s)* depending on shaft diameter and seal material

Materials: NBR (Nitrile), FKM, Viton®, HNBR

Availability: More Info…

Most standard, non-standard and application-specific designed split rotary shaft seals, in inch or metric sizes, are available with a 1-2 week turnaround. Expedite service available.

Application-specific and proprietary seal designs available. Please contact engineering to get the best seal for your rotary sealing applications.

*Maximum values depend on seal material, seal configuration, media, temperatures, pressures, surface speed and working environment. For maximum seal life expectancy, do not operate your seal beyond 75% of any of its operating limits. Please consult with engineering or call 1-800-283-7140 for advice.

American High Performance Seals assumes no obligation or liability for any advice furnished or results obtained with respect to these products. All such advice is given and accepted at the buyer’s risk.

This information, based on our experience, is offered as part of our service to customers. It is intended for use by persons having technical skill, at their own discretion and risk. We do not guarantee favorable results, and we assume no liability in connection with its use.