Technology: Freudenberg unveils new rotary seal for process industry

Weinheim, Germany – Freudenberg Sealing Technologies has developed a new rotary seal for wet-running applications and pressures up to eight bar.

Named the Gerromatic, the seal is equipped with a wave-shaped sealing lip, not a rotation-symmetrical design. Freudenberg said this results in a sinusoidal contact pattern.

As the shaft rotates, each point of the seal lip repeatedly coats a different area of the shaft, moistening it with the medium to reduce friction and the usual temperature rise at the sealing area.

Freudenberg Sealing Technologies said experts have already…

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