JPH02102019U - - Google Patents

Description

[Brief explanation of drawings]

In the drawings, FIG. 1 is a vertical cross-sectional front view showing the main parts of a high-speed motor to which an embodiment of the present invention is applied, and FIG. 2 is a view similar to FIG. 1 showing an example of a conventional structure. 2... Bearing housing, 3... Rolling bearing (bearing part), 5... Rotating shaft, 7... Lubricating oil introduction path, 8
... Nozzle, 9 ... Circumferential groove, 10 ... Oil filler port, 13
...Lubricating oil supply device, 16...Spacer, 20...
...Mounting groove, 21...Annular seal.

Claims (1)

[Scope of utility model registration request] The oil is sent from an oil supply port formed between the bearing parts of the bearing housing to a plurality of bearing parts that rotatably support a rotating shaft inserted into a bearing housing at a plurality of locations spaced apart in the axial direction. A lubricating oil supply device configured to supply lubricating oil, wherein the bearing portion is constituted by a rolling bearing, a spacer is interposed between an outer ring of each rolling bearing,
This spacer is formed with a plurality of lubricating oil introduction passages reaching a predetermined depth from the outer surface thereof, and a nozzle that is communicated with the inner end of each lubricating oil introduction passage and directed toward the rolling bearing, and the outer circumferential surface of the spacer A circumferential groove is formed that communicates with the outer end of each of the lubricating oil introduction passages and communicates with the oil supply port, and a pair of annular seals are provided on both sides of the circumferential groove to close between the spacer and the bearing housing. A lubricating oil supply device for a bearing portion, characterized in that it is provided with a lubricating oil supply device.