#504 HO Scale A.S.F.® A-3 Ride Control® 50 Ton Trucks with 33" Smooth Back Wheels - Metal Fully Sprung

#504 A.S.F.® A-3 Ride Control® 50 Ton Trucks with 33" Smooth Back Wheels - HO Scale
Metal Fully Sprung Equalized Trucks

Mounts with a #2 or 2-56 screw.
Mounting Screws not Included.

Introduced in the 1940’s - Used in interchange service through 1994.

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.

Screws not included 

One Pair

HO-Scale

Metal Fully Sprung Trucks Features:

• Code 110 (.110) #520 33" Smooth Back Wheels
• #441 Brake Pads - Narrow Bolster
• Accurate Markings
• Incredible Detail True to Prototype
• Non-Magnetic Metal Wheels
• Highly Flexible Sprung Trucks
• Metal Sideframes & Fully Sprung Bolster
• Smooth tracking Free Rolling Contoured Insulated Axles
• RP-25 Free Rrolling Wheels
• #637 HO Scale Truck Springs
•  Patent numbers 5,832,837 & 5,768,999
  

Package Includes:

• (2) Each #504 A.S.F.® Ride Control® 50 Ton Trucks (assembled)
• (2) #441 Brake Pads - Narrow Bolster