| 摘要 |
<p>A mechanical seal has a seal face (11) located in a rotary holder (27) which is spring biased away from a drive ring (19). An elastomeric bellows (16) seals these components. The holder and drive ring are longitudinally restrained and rotationally coupled by at least one male portion (30) in one of these members engaging with a female portion (31) in the other of these members. The holder and the drive ring may be utilised in either a single seal or a double seal by selecting an appropriately shaped elastomeric bellows.</p> |
