#564 Bettendorf 50-ton Self Centering Trucks with 33" Smooth Back Wheels - HO Scale"HGC" Two Piece Fully Equalized Trucks The Self-Centering Action trucks self align themselves parallel with the car for easier placement on track. Mounts with a #2 or 2-56 screw. Introduced in the 1930’s - Used in interchange service through 1993. The Bettendorf Double Truss Truck was introduced in the 1930's by U.S. railroads and was allowed to be used in interchange service through 1993. The Kadee® #500, #502 & #550 represent 50- ton trucks for 100,000 pound cars. "HGC" or High Gravity Compound, weighs nearly the same as Metal Trucks but with more detail & a 2 piece split bolster design for more efficient truck equalization, reduced axle friction for greater rolling performance.
