| 摘要 |
PURPOSE:To obtain a bearing device with good absorptivity of sound and small amount of wearing, by securing a cemented carbide alloy through a shock absorbing material to the internal peripheral surface of a bearing metal or the peripheral surface of a bearing collar. CONSTITUTION:A ring 6 of cemented carbide alloy is secured through a shock asorbing material 5 to the internal peripheral surface of a bearing metal B or the peripheral surface of a bearing collar D fixed to a shaft. Soft metals of copper and silver or their alloy or the like, plastics of epoxy resin or the like, hard rubber, etc. are used for the shock absorbing material. The bearing metal B is formed with an internal diameter d2 of the central internal peripheral surface (b) larger than an internal diameter d1 of the ring 6 of cemented carbide alloy, and this part of larger diameter is used as an oil reservoir. In this way, good acoustic absorptivity is obtained, and a clearance can be formed to small dimension because of a cemented carbide alloy. |
