JPH0341175U

JPH0341175U -

Info

Publication number: JPH0341175U
Application number: JP10056889U
Authority: JP
Priority date: 1989-08-28
Filing date: 1989-08-28
Publication date: 1991-04-19

Description

[Brief explanation of drawings]

第１図は実施例の油圧ユニツト用モータを示す
断面図、第２図は玉軸受の正面図、第３図は第２
図の要部を示す図でありる。１……ケーシング、２……軸受、３……ロータ
、４……ステータ、５……回転軸、６……玉軸受
、７……内輪、８……外輪、９……ボール、１０
……保持器、１１……鋸刃状溝、１２……突部、
１３……溝底、１４……止め輪、１５……プラン
ジヤ。 Fig. 1 is a sectional view showing a motor for a hydraulic unit according to an embodiment, Fig. 2 is a front view of a ball bearing, and Fig. 3 is a sectional view of a motor for a hydraulic unit according to an embodiment.
It is a figure which shows the principal part of a figure. 1... Casing, 2... Bearing, 3... Rotor, 4... Stator, 5... Rotating shaft, 6... Ball bearing, 7... Inner ring, 8... Outer ring, 9... Ball, 10
...retainer, 11 ... serrated groove, 12 ... protrusion,
13...Groove bottom, 14...Retaining ring, 15...Plunger.

Claims

[Scope of utility model registration request]

Attach a rolling bearing to one end of the rotor rotating shaft,
A hydraulic unit that makes the inner diameter surface of the inner ring of the rolling bearing eccentric with respect to its outer diameter surface, contacts the plunger of the hydraulic unit with the outer diameter surface of the outer ring, and converts the rotation of the rotor into eccentric rotation and transmits it to the plunger. In the motor, the inner diameter surface of the inner ring of the rolling bearing is formed into an uneven surface by a number of grooves whose groove bottoms are larger in diameter than the diameter of the rotor rotation shaft, and the rotor rotation shaft is press-fitted into the inner circumference surface. A motor for a hydraulic unit characterized by a fixed rolling bearing.