Volume 53 (2012) Issue 3 Pages 148-154
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.