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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.
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
