| 摘要 |
PURPOSE:To provide bearing structure of a transmission capable of improving workability with the trouble of damaging the sealing performance of a sealing member prevented, and with slide resistance reduced. CONSTITUTION:A nearly cylindrical support 48, to be loosely fitted to a large shaft part 46, is provided. A protruded edge part 52, having a diameter larger than that of the large shaft part 46 and smaller than that of a gear, is protruded on the center side to be provided on one side end in the shaft direction of the inner peripheral surface of this support, and also an annular groove part 56, continued in the circumference direction is provided. A pair of sealing member 66 is provided by position- separably fit them to individual side ends in the axial direction of the inner peripheral surface of the support, and also a communication hole 74, communicating a space 72 with an annual groove part, is provided. An engaging part 76, in which the support is engagedly inserted, is directed in the other direction of the axial direction of a rotation shaft to be opened to be provided on the inner side of a transmission case 4, in which the axial direction intermediate part of the rotation shaft is insertedly positioned. Moreover, a screw hole 86 is provided on the transmission case, so as to direct to the annular groove part of the outer peripheral surface of the support engagedly inserted in this engaging part, and a falling-preventive bolt 88, threadedly engaged with this screw hole, is provided. |
