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Red 37 Series

For over 75 years, National® has made wheel end seals that work so well you can install them and forget about them. Simple to install, easy to forget. That’s National performance.

red-37-dynamic-series
Red-37-Cutaway

The Name You Trust. The Seal You Can Depend On.

A. Single spring-loaded sealing lip effectively pumps lubricant back into hub
B. Unitized construction provides structural integrity and main lip protection
C. Unique SURE-LOCK I.D. rib technology firmly grips shaft and provides superior contaminant exclusion
D. Metal O.D. maintains position on hub bore
E. Three floating points of contact lock out dirt and moisture

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