| 摘要 |
<p>A drive sprocket for machines such as a motorcycle includes cushioning elements to reduce spikes in stress levels between the machine's power transmission and a driven member, such as the wheel of motorcycle. The sprocket has an inner plate (10) which is located coaxially within the outer ring (9). The inner plate (10) is formed with outwardly projecting lugs (8) A that are arranged to mesh with the inwardly projecting lugs (7) of outer ring (9). The outwardly projecting lugs comprise six wide lugs (8A) and six narrow lugs (8B) disposed alternately around the outside of the inner ring. The outer edge of outwardly projecting lugs, (8A), (8B) are formed with a bearing slot (41). In the case of the six wide lugs, their bearing slot (41) cooperate with bearing slots (37) on the inside wall of the outer ring (9) to provide a ball bearing race for bearings (12). The sides of the lugs (8A,8B) are also formed with cushion slots (43) to engage cushioning elements (45) and (47).</p> |
