| 摘要 |
<p>The article has an axial coupling unit comprising balls (10) disposed in respective housings arranged on an outer circumference of an inner ring (4) that is disposed concentric to an outer ring (2). The balls are adapted to roll in a circular groove (18) arranged in an inner circumference of the ring (2). The circular groove forms a raceway for the balls along which the balls roll when the ring (2) is rotated relative to the ring (4). An independent claim is also included for an accessory for disassembling a jewelry article.</p> |
