Quarterly Report of RTRI
Online ISSN : 1880-1765
Print ISSN : 0033-9008
PAPERS
Proposal for Grease Replacement System for Traction Motor Bearings
Sumiko HIBINOKazuo NAKAMURATetsuya HOSOYA
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2012 Volume 53 Issue 3 Pages 148-154

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Abstract

The "interim greasing" method is one of the general solutions for extending the lifespan of grease, and has been adopted for some types of induction traction motors. However, the conventional way of planning interim greasing requires leaving some empty space to refill additional grease due to the limited room. Accordingly, trouble sometimes occurs due to insufficient lubrication during the initial stages of the motor operation. To solve this problem, a new device was designed which enables grease refilling without providing an empty space by replacing the deteriorated grease with the less deteriorated one inside the grease pocket.

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© 2012 by Railway Technical Research Institute
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