D B C E F A MIDWESTWHEEL.COM MEMBER KANSAS CITY 5801 E. Front St. Main ....(816) 471-1552 Parts....(800) 821-7402 JOPLIN 2424 Stephens Blvd. Main ....(417) 717-6022 Parts....(866) 318-9111 SPRINGFIELD 812 Lillian Dr. ∙ Strafford, MO Main ....(417) 429-2476 Parts....(800) 785-3705 SIOUX CITY 1819 4th St. Main ....(712) 252-7969 Parts....(800) 943-3534 CEDAR RAPIDS 200 50th Ave. S.W. Main ....(319) 365-4453 Parts....(800) 332-5435 DES MOINES 1436 E. Ovid Ave. Main ....(515) 265-1491 Parts....(800) 888-0248 CLEAR LAKE 840 Hwy. 18 W. Main ....(641) 357-7101 Parts....(800) 397-5630 DAVENPORT 8502 Northwest Blvd. Main ....(563) 322-2671 Parts....(800) 553-1886 OMAHA 9770 S 142nd Street, Suite 1 Main ....(531) 239-3050 Parts....(800) 322-8757 NEBRASKA IOWA MISSOURI August 27, 2024 (05National Oil Seals) Wheel End Seals Red 37 Series Wheel End Seals Gold 38 Series 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 creates a pumping action to aggressively push dirt away from the seal. National® is known for creating the industry’s best-kept secret, the Gold 38 Series, made in the United States with an exclusive PTFE compound that withstands extreme temperatures. The Gold 38 Series also includes a unique exclusion design to keep contaminants at bay. Choose National wheel end seals, and move on. 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 Gold 38 Series Seal Design A. Patented PTFE Lay-Down Bi-Directional Sealing Lip maintains constant sealing during wheel movement B. Four floating points of contact and bumper pad that inhibits contaminant entry into the hub C. SURE-LOCK I.D. rib technology firmly grips shaft and provides superior contaminant exlcusion D. Metal O.D. maintains position on hub bore E. A unitized shield prevents damage to PTFE oil sealing lip and provides structural integrity
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