Drop forged (ASTM 1045) construction; top plate and 3/4” kingpin are integrally forged as one piece; 2-9/16” bearing raceway is precisely machined and hardened. 3/8” diameter hardened ball bearings. • Lower raceway or thrust bearing is a 3/4” tapered roller bearing, providing exceptionally smooth and easy swiveling action and counteracts radial thrust. • 1/4” thick legs are robotically welded inside and outside. • Zinc plated nish is attractive & corrosion resistant. • Large selection of wheel, bearing & brake options. • Zerk grease tting in raceway & axle for easy maintenance. • Standard stock series = Quick Deliveries • 1/2" Axle