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Designed for dynamic reliability, the HMSA7 oil seal combines a rubber-coated outer diameter with an integrated metal insert and a spring-loaded sealing lip. Its secondary dust lip offers added protection in contaminated environments, making it a smart choice for applications where performance and longevity matter. Whether used in electric motors, transmissions, or light industrial equipment, the HMSA7 delivers consistent sealing under pressure — quietly doing its job, so your machinery can keep doing yours.
There are more than 8000 models, with sufficient inventory:
