| 释义 |
Gleason bevel gear system Gleason bevel gear system[′glēs·ən ¦bev·əl ¦gir ‚sis·təm] (design engineering) The standard for bevel gear designs in the United States; employs a basic pressure angle of 20° with long and short addenda for ratios other than 1:1 to avoid undercut pinions and to increase strength. |