Bal Seal Engineering, Inc. products

The spring-energized seal, a U-cup lip seal made from specially-formulated polymers and reinforced by an energizing component, can be a valuable tool in the engineer’s problem-solving arsenal. While it may not be suitable for every application, the design has an impressive track record in environments considered too aggressive for other seal types. If getting more performance and reliability out of your designs is the challenge, a spring-energized seal could be the solution.

The custom-engineered Bal Seal® spring-energized seal sets new standards for performance and reliability in reciprocating 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.

Our spring mechanically fastens, conducts electricity, and shields sensitive electronics from EMI/RFI. Its independent coils, which serve as multiple contact points for optimal current carrying capability, ensure consistent, reliable connection—even under shock and vibration.

Our versatile Bal Spring® canted coil spring is a proven solution for mechanical connecting challenges. Its size, simplicity, and multi-function capabilities can help you reduce system complexity and weight while improving performance. The Bal Spring performs latching, locking, and holding functions, it allows for tool-less installation, and it’s robust enough to withstand thousands of insertion/removal cycles.