These Kadee / Bettendorf 50-Ton Self-Centering HGC trucks are perfect for HO scale model railroads. They come with Code 110 (.110 wide) 33' smooth back RP-25 wheels. Mount them easily with a #2 or 2-56 screw. The Bettendorf Truck, an AAR standard introduced in the 1930s, was used in interchange service until 1993. Kadee's #500, #502, #550, #564, #565, #1564 & #1565 models represent 50 ton trucks for 100,000 pound cars. Key features include high - gravity compound similar in weight to metal trucks, self - centering design, superior rolling ability, brake pads, accurate markings, incredible detail, non - magnetic metal wheels, fully equalized flexibility, smooth tracking with free - rolling contoured insulated axles, and RP - 25 free - rolling wheels.

Using these HO scale Kadee / Bettendorf trucks is easy. First, find the appropriate place on your 100,000 - pound model car to mount them. Use a #2 or 2 - 56 screw for mounting. The self - centering feature will help the trucks align properly on the tracks. When running your model train, enjoy the smooth tracking and superior rolling ability these trucks offer. As for maintenance, keep the wheels clean from dirt and debris regularly. You can use a soft brush to gently clean the wheels and axles. Avoid using harsh chemicals as they might damage the non - magnetic metal wheels and the high - gravity compound material. If you notice any issues with the brake pads or the centering, check the components for any signs of wear or misalignment. With proper care, these trucks will serve you well in your model railroad setup.