| 摘要 |
PROBLEM TO BE SOLVED: To reduce a cost as a series by sharing a main bearing of an eccentric oscillation type speed reducer.SOLUTION: A series of an eccentric oscillation type speed reducer comprising a plurality of speed reducers different in size classification determined based on the size of an output torque includes: a first subseries comprising a speed reducer with a hollow part; and a second subseries comprising a speed reducer with the hollow part of a hollow diameter smaller than the hollow diameter of the hollow part of the first subseries or without the hollow part in the same size classification, the main bearings 135 and 136 supporting the carrier bodies 124 and 128 of the speed reducer in the specific size classification of the first subseries are shared with the main bearings 235 and 236 supporting the carrier bodies 224 and 228 of the speed reducer of the size classification larger than the specific size classification of the second subseries. |
