Manufactured with premium-grade steel, National taper bearing cones feature crowned raceways and rollers to ensure even load distribution. Product Features:PREMIUM MATERIALS -- Precision manufactured using premium-grade steel for outstanding durability and performanceSMOOTH ROTATION -- Crowned raceways and rollers for even load distributionOE-STYLE DESIGN -- Engineered to meet OE specificationsCOMPREHENSIVE COVERAGE -- Industry-leading coverage for domestic and import applicationsRIGOROUS TESTING--Comprehensivetesting throughout design and development processes by National engineers for quality you can count on
