D3/R3-Dual Wheel Kingpinless Series-20,000 lb
- ASTM1045 steel, drop forged 1/2" thick swivel head, 4-1/2" diameter precisely machined raceway of 5/8" diameter hardened steel ball bearings
- Legs are formed from 3/8" thick steel, double welded
- 3/4" CNC machined grade 8 axle and lock nut