WBogie
WList of railroad truck parts
WAAR type A switcher truck
WBissel truck
WBlomberg B
WBogie
WBogie exchange
WCartazzi axle
WJacobs bogie
WKrauss-Helmholtz bogie
WMonomotor
WBogie
WScheffel bogie
WSpan bolster
WSyntegra
WBogie
WWheelset (rail transport)