| 摘要 |
An improved bearing assembly includes one shaft washer rather than using separate forward and aft shaft washers as in the prior art; a slight lengthening of the forward roller as compared to the aft roller; an increase in the diameter of the forward roller relative to the aft roller; an increase in the number of rollers; improved materials, particularly in the shaft washer where fewer inclusions are present in the metal; and an osculation configured to provide less space and unconstrained movement between the rollers and runways. The improvements result in decreased movement or play between the shaft washers, the bearings/rollers, and the outer rings, reducing the risk of defects arising in the shaft washers, the bearings/rollers, and the outer rings and the probability that if any defects do arise they will worsen and cause significant damage. The improvements and changes provide a compact design that fits within existing pod propulsion systems. |
