757 O Scale 2 Rail Arch Bar Metal Trucks with 33" Ribbed Back Metal P48 Wheels
O-Scale
1 Pair
Mounts with a #4-56 x 3/8 screw. or optional #770 Bolstor Adapter Sold Separately
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 AAR truck is excellent for modeling the transition era up to 1994 when friction bearings were no longer allowed in interchange service.
Truck Features
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All Metal Non-Magnetic 2 Piece Self Equalizing Black Trucks
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O Scale 33 in. Ribbed Back All Metal Non-Magnetic Black P48 Wheels with Free Rolling Insulated Axles
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Clip on pads & brake rigging
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Mounting Adapters for Protocraft & Atlas Included
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Manufactured and assembled entirely in the U.S.A.
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Patent number 7,434,518 B2
- NMRA Conformance