Kadee #522 HO Scale 36" Diameter Smooth Back Metal Code 110 Wheels - Freight and Passenger

#522 - 36" Diameter Smooth Back Wheelsets (Code 110) - HO Scale- Freight and Passenger #522 - 36" Diameter Smooth Back Wheelsets (Code 110) - HO Scale Smooth wheelsets are most commonly found on diesel era rolling stock. Kadee® wheel sets are manufactured to the most exacting standards and feature: RP-25 contour, non-magnetic metal wheels and insulated needlepoint axles. #522 Instructions (pdf) Truck & Wheel Handout (pdf) Twelve Sets(1 Set = 1 Axle) Axle Tip to Tip: 1.018" UPC: 765484005223   Made in the U.S.A. HO-Scale Wheelset Features: Code 110 (.110") 36" Smooth Back Wheels Accurate markings Incredible detail true to prototype Non-magnetic Metal Wheels Smooth tracking Free rolling Contoured Insulated Axles RP-25 Free rolling wheels Needlepoint Axles Axle Tip to Tip: 1.018" Freight & Passenger Package Includes: (12) Sets #522 36" Diameter Smooth Back Wheelsets (Code 110)   The term Code 110 and Code 88 relates to the width of the wheels and has no relationship