Walthers Cornerstone
Freight Car Trucks - Rigid Plastic w/Plastic Wheels 1 Pair

Roller Bearing
Walthers Part # 933-1013, p. 242 Walthers 2010 HO Scale Reference
HO scale, $3.49, currently in stock at Walthers
This product is on-sale today for $2.49

 
Trucks are molded in black Delrin(R) plastic with one-piece rigid sideframes. Nonmagnetic brass axles. Molded Delrin RP25 wheels.