New schemes of the two- and three-step reducers are proposed. These schemes are different combinations of planetary and row cylindrical gears. Kinematic opportunities of schemes with planetary gear placed in the first or second step are considered. It’s shown that new reducers schemes have important advantages over two-step planetary or row gears in particular ones with planetary gear placed in second step. In last case it’s possible to manufacture reducers with equal modules in both steps. As to facilitate such reducers projecting the ratio table with indication of teeth number of each gear in each step is given.
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