| 摘要 |
Disclosed is a grease-filled tool in which a top cover (23) having a grease pressure inlet (30) does not float up by means of the injection pressure of the grease when filling the gaps in a bearing (A) with grease. The grease-filled tool is provided with a supporting platform (20), which carries the bearing (A), wherein a plurality of rolling elements (2) are evenly disposed on the outer peripheral surface of inner wheels (1) by means of a retainer (3), the bearing (A) being carried with one end surface of the inner wheels (1) on the bottom; a disc-shaped middle cover (21) mounted on the other end surface of the inner wheels (1); and an upper cover, which has a grease pressure inlet (30), has a disc shape with a larger diameter than the middle cover (21), and on the lower surface is provided with a middle-cover-receiving indentation (29), which receives the middle cover (21) leaving a grease injection space (22) at the upper surface and the outer peripheral surface of the middle cover (21). The grease-filled tool is further provided with a pressing member, which is provided on the abovementioned supporting platform (20), and which engages the upper surface of the upper cover (23), pressing the upper cover (23) downwards when grease fills the gap spaces in the bearing (A) from a grease filling opening (56) formed in the space between the inner peripheral surface of the middle-cover-receiving indentation (29) of the upper cover (23) and the outer peripheral surface of the middle cover (21), preventing the upper cover (23) from floating up. |
