SEALS
lip maintain its contact with the shaft even as the seal material itself breaks down. In addition to keeping contaminants out and fluids in, rotary and shaft seals have the extra benefit of providing low friction and resistance to wear, thus extending component life. To reduce efficiency and power loss, bearing users can turn to non-contact seal designs. These seals eliminate efficiency and frictional power loss, and also reduce maintenance and contamination problems associated with contact or rubber seals. Several different styles of non-contact seals exist, including labyrinth and centrifugal seals. Designed to eliminate the physical contact between a machine’s stationary and rotating elements, they don’t suffer parasitic drag or wear.
More Cycles, More Uptime. Because it’s engineered to provide superior protection against leakage in a broad range of temperatures, pressures, and media, the Bal Seal® spring-energized seal can dramatically improve the service life of your motor. What’s more, its balance of low friction and sealing effectiveness can help you achieve new levels of power efficiency and reliability.
Centrifugal seals like this design from Centritec Seal from the Carlyle Johnson Machine Co. can be used in a rotating machine’s vertical shaft. The centrifugal pressure of this design helps prevent weepage.
Learn how a Bal Seal® can elevate your new or existing motor design. Call or click today.
800.366.1006
www.balseal.com 8 • 2018
DESIGN WORLD — MOTION
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