American Steel Foundries (generally referred to as ASF) has been a major producer of freight car trucks for over a century. To this day, the ASF truck designs, specifically the 'Ride Control' family, are a common sight under rail cars all across North America. Generally speaking, modern freight cars utilize this 100-Ton truck design with 36"wheels.
Injection-Molded Plastic Sideframes
ASF Ride Control Design
Machine-turned 36" Metal Wheels
- Height to top of bolster: ~ .1586"
- Diameter of bolster hole: ~ .125"