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Red 37 Series Dynamic Edge

Exclusive Dynamic Edge Technology is an innovative system engineered to deflect dirt and moisture away from wheel end components. The key to National Dynamic Edge technology is a patented sinusoidal wave that actually created a pumping action to aggressively push dirt away from the seal.

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Dynamic-Edge-Cutaway

The Most Dependable Point Contact Seal in the Industry

A. Dynamic Edge® pumping feature deflects contamination away from the face of the seal
B.Four floating points of contact lock out dirt and moisture
C. Single spring-loaded sealing lip effectively pumps lubricant back into hub
D. Unique SURE-LOCK I.D. rib technology firmly grips shaft and provides superior contaminant exclusion
E. Unitized construction provides structural integrity and main lip protection
F. Metal O.D. maintains position on hub bore

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