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About: Jackshaft (locomotive)     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatRailTechnologies, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: yago:WikicatLocomotivePartsyago:Abstraction100002137yago:Act100030358yago:Activity100407535yago:Application100949134yago:Event100029378yago:Occupation100582388yago:Part113809207yago:Profession100609953yago:PsychologicalFeature100023100yago:RailTechnology100951037yago:Relation100031921yago:YagoPermanentlyLocatedEntityhistoric placeyago:Technology100949619yago:Use100947128yago:WikicatRailTechnologies New Facet based on Instances of this Class

A jackshaft is an intermediate shaft used to transfer power from a powered shaft such as the output shaft of an engine or motor to driven shafts such as the drive axles of a locomotive. As applied to railroad locomotives in the 19th and 20th centuries, jackshafts were typically in line with the drive axles of locomotives and connected to them by side rods. In general, each drive axle on a locomotive is free to move about one inch (2.5 cm) vertically relative to the frame, with the locomotive weight carried on springs. This means that if the engine, motor or transmission is rigidly attached to the locomotive frame, it cannot be rigidly connected to the axle. This problem can be solved by mounting the jackshaft on unsprung bearings and using side-rods or (in some early examples) chain drives