Editing Driving wheel (section)

==Balancing==
{{main|Engine balance}}
[[Image:Steam locomotive driving wheel.jpg|thumb|300px|A flangeless driving wheel on a [[steam locomotive]]]]
On locomotives with [[side rod]]s, including most [[Steam locomotive|steam]] and [[Jackshaft (locomotive)|jackshaft]] locomotives, the driving wheels have weights to balance the weight of the coupling and connecting rods.<ref>{{cite journal| page=414| title=Another Balancing Scheme| journal=Locomotive Engineering| date=September 1898| publisher=Angus Sinclair Co.| location=New York| volume=XI| issue=9| url=https://books.google.com/books?id=dDwOAQAAIAAJ&q=locomotive+driver+balancing&pg=PA444| via=Google Books}}</ref><ref>{{cite journal| page=18| title=The Rule of Equipoise: In Counter-Balancing Locomotive Driving Wheels| journal=International Railway Journal| first1=E.M.| last1=Herr| first2=S.P.| last2=Bush| first3=W.H.| last3=Lewis| first4=C.H.| last4=Quereau| volume=XII| issue=1| date=September 3, 1904| location=Philadelphia and Chicago| url=https://books.google.com/books?id=DvlKAAAAYAAJ&q=locomotive+driver+balancing&pg=RA1-PA18| via=Google Books}}</ref> The crescent-shaped balance weight is clearly visible in the illustrative image.