Bearing tester developed by Great Northern has extended serviceable life of number of traction-motor armature bearings to over one million miles; redesigned bearing tester incorporates PS-12 air cylinder from power contactor to produce necessary load on bearing; it supplies about 350 lb upward thrust against outer race of bearing during test; this pressure causes no measurable distortion of outer race, but does load bearing enough to cause slight temperature rise after 15-min run; inner race of bearing is rotated by hollow shaft fitted with V-pulley supported by two ball bearings mounted on stationary spindle; 1/2-hp, 1800-rpm driving motor rotates bearing at 900 rpm.


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    Titel :

    Tester checks GN motor bearings


    Weitere Titelangaben:

    Ry Locomotives Cars


    Erschienen in:

    Erscheinungsdatum :

    1965


    Format / Umfang :

    2 pages


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :



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