| 摘要 |
PURPOSE:To prevent vibration by laying a supporting pipe between the both bearings outside a driving shaft and fixing the bearings at the both edges of the supporting pipe. CONSTITUTION:A supporting pipe 20 made of metal is laid between the both bearings 12 and 13 which are arranged oppositely each other outside a driving shaft 5. The both edges of the supporting pipe 20 are fitted onto the peripheral surfaces of the bearings 12 and 13, and said bearings 12 and 13 are fixed through the press-fitting onto the both edges of the supporting pipe 20. Therefore, the center position of the both bearings is regulated by the supporting pipe, and center adjustment with high precision is permitted.
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