DYNAMO-ELECTRIC MACHINE, BEARING BRACKET AND DESIGN METHOD OF BEARING BRACKET

摘要

PROBLEM TO BE SOLVED: To commonize the bearing thermometer attached to the bearing bracket of a dynamo-electric machine.SOLUTION: In a bearing bracket 50 for rotatably supporting the rotor shaft of a rotor in a dynamo-electric machine, an insertion hole 58 into which a bearing thermometer 60, for measuring the temperature near the bearing, is inserted from the radial outside toward the radial inside is formed, the position of the inlet of the insertion hole 58 is farther radial inside than the radial end of the bearing bracket 50, and a groove 56 for allowing insertion of the bearing thermometer 60 into the insertion hole 58 is formed. The groove 56 may be formed in the radial direction from the radial outside toward the inlet of the insertion hole 58.SELECTED DRAWING: Figure 2