Stepping motor and method of manufacturing the same

Details Stepping motor and method of manufacturing the same Stepping motor and method of manufacturing the same

2011-01-11

2011-01-11

Hanh, Nguyen N (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

Reexamination Certificate

active

07868500

ABSTRACT:
A stepping motor includes a housing, a supporting shaft, a rotor, and a stator. The housing includes a first wall and a second wall facing each other. The supporting shaft is inserted into a through hole of the rotor and is held by the first wall and the second wall. The rotor has a first end face and a second end face in an axial direction of the rotor. The first end face and the second end face are separated from the first wall and the second wall, respectively. A lubricant fills between the through hole and the supporting shaft, and an oil repellent agent is applied at a predetermined first area of the first wall around the supporting shaft and a predetermined second area of the second wall around the supporting shaft.

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