| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing unit that makes an oil level quickly and congruently stabilizable in time of lubrication between two bearing cases to be intercommunicated with each other via a bearing, and also good lubrication to every part of the bearing achievable during the operation of rotative driving. SOLUTION: In this bearing unit equipped with both a first and second bearing cases 7 and 8 being intercommunicated with each other via a bearing 5, an oil filler port is installed in the said first bearing case 7 while two communicating passage 9 and 10 intercommunicating an interval between both these first and second bearing cases 7 and 8 are installed in a shaft 4 pivoted in the second bearing case 8. Lubricating oil fed to the first bearing case 7 is quickly circulated to the second bearing case 8 where two shafts 5 and 6 at the peripheral side of the shaft 4 are arranged rapidly by way of these communicating passages 9 and 10 installed in the shaft 4. |
