{"product_id":"kadee-755-proto-p48-o-scale-asf-a-3-ride-control-metal-trucks-33-wheels","title":"Kadee # 755 PROTO P48 O Scale ASF A-3 Ride Control Metal Trucks 33\" Wheels","description":"\u003cp\u003e#755 O Scale 2 Rail A.S.F. A-3 Ride-Control Metal Trucks with 33\" Smooth Back Metal P48 Wheels\u003cbr\u003eO-Scale\u003cbr\u003e50-Ton Freight Truck\u003c\/p\u003e\n\u003cp\u003e1 Pair\u003c\/p\u003e\n\u003cp\u003eMounts with a #4-56 x 3\/8 screw. or optional #770 Bolstor Adapter Sold Seperatly\u003c\/p\u003e\n\u003cp\u003eIntroduced in the 1940’s - Used in interchange service through 1994.\u003c\/p\u003e\n\u003cp\u003eThe A. S. F.® A-3 Ride Control® 50-ton freight truck was introduced in the 1940s 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.\u003c\/p\u003e\n\u003cp\u003eTruck Features\u003cbr\u003e• All Metal Non-Magnetic 2 Piece Self Equalizing Trucks\u003cbr\u003e• O Scale 33 in. Smooth Back All P48 Metal Non-Magnetic Black Wheels with Free Rolling Insulated Axles\u003cbr\u003e• Clip on pads \u0026amp; brake rigging\u003cbr\u003e• Mounting Adapters for Protocraft \u0026amp; Atlas Included\u003cbr\u003e• Manufactured and assembled entirely in the U.S.A.\u003cbr\u003e• Patent number 7,434,518 B2\u003cbr\u003e• NMRA Conformance\u003c\/p\u003e","brand":"PowerHobby","offers":[{"title":"Default Title","offer_id":66510035386672,"sku":"KAD755","price":36.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/5661\/8800\/files\/00755_01_1.jpg?v=1775835094","url":"https:\/\/wrekd.com\/fr\/products\/kadee-755-proto-p48-o-scale-asf-a-3-ride-control-metal-trucks-33-wheels","provider":"WREKD Co.","version":"1.0","type":"link"}