Rotary Shaft Seals
Rotary Shaft Seals
The custom-engineered Bal Seal® rotary shaft seal sets new standards for performance and reliability in rotary and oscillating applications. Precision machined from PTFE and other premium polymers, our seal combines innovative geometries with a wear-reducing spring energizer to extend the service life of the critical equipment you design.
Rotary Shaft Seal Profiles
When you’re sealing in rotary applications, speed is a primary consideration. Here’s a sampling of the thousands of profiles we’ve engineered for specific speed requirements.
High Speed Sealing
Designed for speeds up to 3000 ft./min, this seal features a metal locking ring that prevents rotation and promotes consistent sealing contact in thermal cycling conditions.
Medium Speed Sealing
Designed for speeds of 750 ft./min, this seal employs an O-ring on the outer diameter. A canted coil spring energizer maintains a constant sealing force against the shaft.
Low Speed Sealing
This seal features a dynamic single contact lip that helps reduce friction and heat build-up at speeds up to 250 ft./min. Its design also allows for press-in mounting.
Rotary Shaft Seal Materials
The Bal Seal® spring-energized rotary seal gives you the ability to closely control frictional forces and optimize sealing effectiveness in a broad range of chemicals, temperatures, and pressures. Base jacket materials consist of polytetrafluoroethylene (PTFE), polyethylene (PE), polyetheretherketone (PEEK), and other specialty polymers. We combine these with advanced filler materials to enhance performance properties. Here’s a small sampling of the materials we’ve formulated for specific rotary application requirements.
