According to the transmission ratio, it is divided into: first, second and third.
There are thirteen types at the first level:
0.
There are 14 models in two levels:
00, 20; 32, 42, 53, 63, 64, 74, 84, 85, 95, 106, 117, 128.
There are 8 models for level three:
420, 742, 842, 853, 953, 1063, 1174, 1285.
According to the structure type:
There are four types: horizontal, vertical, double-shaft, and direct-coupled.
The transmission ratios of one-stage reduction are:
9.
The transmission ratios of the two-stage reduction are:
99, 121, 187, 289, 319, 385, 473, 493, 595, 649, 731, 841, 1003, 1225, 1505, 1849, 2065, 2537, 3045, 3481, 5133.
The transmission ratios of the three-stage reduction are:
5841's