| 摘要 |
<p>The gearbox (1) has a friction ring (31) between inner conical bearing surface (12) of inner conical portion (11) and outer conical bearing surface (22) of outer conical portion (21). The friction ring has circular friction ring outer edge between friction ring outer surface (32) and outer friction surface (35), whose radius is 0.3-0.8 times of the friction ring width (B). The outer conical portion has circular outer shoulder edge (26) between outer conical surface (24) and outer shoulder surface (25), whose radius is 0.05-0.2 times of the friction ring width.</p> |
