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.
Tester checks GN motor bearings
Ry Locomotives Cars
Railway Locomotives and Cars ; 139 , n 4
1965
2 pages
Aufsatz (Zeitschrift)
Englisch
© Metadata Copyright Elsevier B. V. All rights reserved.
Materials tester checks quality in advanced metrology systems
Emerald Group Publishing | 2006
Dynamic Tester For Rotor Seals And Bearings
NTRS | 1991
|Engineering Index Backfile | 1932
Online Contents | 1997
SAE Technical Papers | 1909
|