| 摘要 |
PURPOSE: An advanced bearing for a wheel of a handcart is provided to reduce the manufacturing costs of the bearing by using one bearing instead of existing two bearings. CONSTITUTION: An advanced bearing for a wheel of a handcart comprises bearing supports(7,7'), bearing fixing holes(6,6'), ball bearings(5,5'), bearing covers(4), guide pipes, and a rotary shaft. The bearing supports are formed on the left and right surfaces of a bearing body(3). The bearing fixing holes are formed between the bearing supports. The ball bearings are inserted into the bearing fixing holes. The bearing covers are installed on the outer surface of the bearing supports. The guide pipes are inserted into the centers of the ball bearings inserted into the bearing fixing holes. The rotary shaft is inserted into the guide pipes. |
