JPH0257253U

JPH0257253U -

Info

Publication number: JPH0257253U
Application number: JP13358088U
Authority: JP
Priority date: 1988-10-13
Filing date: 1988-10-13
Publication date: 1990-04-25

Description

[Brief explanation of drawings]

第１図〜第３図はこの考案の一実施例に係り、
第１図は電動機の半断面側面図、第２図は深溝ラ
ジアル玉軸受の断面図、第３図は第１図の電動機
による振動振巾の状態図、第４図〜第７図は従来
の実施例に係り、第４図は電動機の半断面側面図
、第５図は第４図の電動機による振動振巾の状態
図、第６図は振動成分と振動レベルとの関係図、
第７図は深溝ラジアル玉軸受の断面図である。図において、１は固定子、２はフレーム、３，
３′はブラケツト、４は回転子、５はシヤフト、
７は内輪、８は玉、９は保持器、１０は外輪、１
１は深溝ラジアル玉軸受である。なお、図中、同
一符号は同一、または相当部分を示す。 Figures 1 to 3 relate to an embodiment of this invention,
Figure 1 is a half-sectional side view of the electric motor, Figure 2 is a cross-sectional view of a deep groove radial ball bearing, Figure 3 is a state diagram of the vibration amplitude caused by the electric motor in Figure 1, and Figures 4 to 7 are the conventional Regarding the embodiment, FIG. 4 is a half-sectional side view of the electric motor, FIG. 5 is a state diagram of vibration amplitude by the electric motor of FIG. 4, and FIG. 6 is a relationship diagram between vibration components and vibration levels.
FIG. 7 is a sectional view of a deep groove radial ball bearing. In the figure, 1 is a stator, 2 is a frame, 3,
3' is the bracket, 4 is the rotor, 5 is the shaft,
7 is the inner ring, 8 is the ball, 9 is the cage, 10 is the outer ring, 1
1 is a deep groove radial ball bearing. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

A rotating electric machine body comprising a stator, a rotor, a frame that supports them, and a bracket, and a bearing that fits into the bracket and rotatably supports a shaft to which the rotor is attached and fixed. In the electric machine, the bearing is a deep groove radial ball bearing, and the rotation guide means of the retainer of the bearing is configured such that the balls of the ring bearing are guided by an inner ring or an outer ring. .