Kadee 504 HO A.S.F.(R) Ride Control(R) 50-Ton Fully Sprung Metal Trucks Code 110

This is a Kadee 504 HO Scale A.S.F.(R) Ride Control(R) 50-Ton Fully Sprung Metal Trucks Code 110 (.110) 33 Smooth-Back RP-25 Wheels 1 Pair.The A. S. F.® A-3 Ride Control® 50-ton freight truck was introduced in the 1940's and is one of the forerunners of modern freight trucks. Features embodied into this design include a longer spring travel, no spring planks and constant friction control using friction castings in the bolster to dampen excessive lateral roll of the car. These design features allowed for a higher train speed with less danger of derailment than previous designs. ASF® sold over 140,000 sets by 1949. This truck is excellent for modeling the transition era up to 1994 when friction bearings were no longer allowed in interchange service. These trucks feature: 33 smooth back wheels, Accurate markings, Incredible detail True to prototype, Non-magnetic Metal wheels, Highly Flexable sprung trucks, Metal SideFrames & Fully Sprung Bolster, Smooth tracking Free rolling Contoured Insulated Axes, and RP-25 Free rolling wheels. The Patent numbers are 5,832,837 & 5,768,99.

Manufacturer: Kadee
Model Number: 504

Scale/Era: HO Modern
Model Type: Wheels, Trucks, Couplers