PROBLEM TO BE SOLVED: To provide a rotary machine which reliably secures sealability between a casing and a rolling bearing and sealability between the rolling bearing and a shaft, and to provide a rotary electric motor and an in-wheel motor.SOLUTION: A rotary machine includes: a motor case 3; a rolling bearing 12 having an outer ring 12a fitted in the motor case 3; an axle 2 which is rotatably supported by the motor case 3 through the rolling bearing 12; a nut 18 which is fixed to a portion of the axel 2, which is located at the outer side of the rolling bearing 12 in an axial direction, and determines a relative position between the axle 2 and the rolling bearing 12; a collar 15 which is inserted into the axle 2 and disposed between the rolling bearing 12 and the nut 18; an oil seal 17 which seals a space between the collar 15 and the motor case 3; and an O ring 16 which seals a space between the axle 2 and the collar 15.SELECTED DRAWING: Figure 2
【課題】ケーシングと転がり軸受との間のシール性、および転がり軸受とシャフトとの間のシール性を確実に確保できる回転機、回転電動機、およびインホイールモータを提供する。【解決手段】モータケース3と、モータケース3に外輪12aが嵌合される転がり軸受12と、モータケース3に転がり軸受12を介して回転自在に支持される車軸2と、車軸2の転がり軸受12よりも軸方向外側に固定され、車軸2と転がり軸受12との相対位置を決定するナット18と、車軸2に嵌挿され、転がり軸受12とナット18との間に介装されるカラー15と、カラー15とモータケース3との間をシールするオイルシール17と、車軸2とカラー15との間をシールするOリング16と、を備えた。【選択図】図2
ROTARY MACHINE, ROTARY ELECTRIC MOTOR, AND IN-WHEEL MOTOR
回転機、回転電動機、およびインホイールモータ
2017-05-25
Patent
Electronic Resource
Japanese
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