Slide bearing device and compressor

摘要

A slide bearing device and a compressor are capable of stably achieving a low friction condition from the early stage of the start of friction. The slide bearing device includes a bearing, a shaft supported by the bearing while being subjected to sliding, and a gas supply section for supplying a dry gas to a bearing slide section where the bearing and the shaft slide against each other. A slide surface of the bearing is formed of a resin composite material, which is a mixture of a carbon material and a resin. The shaft is made of a metal and includes a groove formed on a slide surface of the shaft, the groove extending in a direction different from the sliding direction. Plural grooves may be provided and the grooves may extend in arbitrary directions. The shaft may include a collection of plural recesses on the slide surface thereof.

主权项

1. A slide bearing device comprising:
a bearing; a shaft supported by the bearing and in contact with the bearing during motion of the shaft while the shaft is subjected to sliding; a gas supply section for supplying a dry gas to a bearing slide section where the bearing and the shaft slide against and are in contact with each other; and a cover for covering the bearing, wherein the gas supply section is attached to the cover and supplies the dry gas to the bearing slide section covered with the cover, wherein the bearing includes at least a slide surface formed of a resin composite material, the resin composite material being a mixture of a carbon material and a resin, and wherein the shaft is made of a metal and includes a groove formed on a slide surface of the shaft, the groove extending in a direction different than a sliding direction.