| 摘要 |
PURPOSE:To reduce the whole axial length by extending a cylindrical holder with a seal member from a gear shaft to the inside diameter of a driven flange cylinder portion in such a manner as to wrap them. CONSTITUTION:The base of a driven flange 28 is provided with a sleeve portion 30. The inside diameter portion 31 of a journal portion 23 is of a large diameter, and fitted to the sleeve portion 30 to be engaged with each other at spline portions 30a, 31a thereof. An O-ring 32 is disposed in a surrounding ring-shaped space S formed on one axial end of the spline portion to seal the driven flange and a shaft at each one end side thereof. A forward end portion 34a of a cylindrical holder 34 is joined to the small-diameter inside diameter portion 33 mounted on the shaft. A concave groove 35 is formed on the holder 34, and an O-ring 36 is fitted in the groove, the outside diameter portion of the O-ring 36 being brought into contact with the inside portion 37 of the sleeve portion 30 of the driven flange 28. |
