Technical Data Reducers Worm Gear Reducers Technical Data
EWJ/EW/SWJ/SW Worm Starting Efficiency (Reference )(Single Reduction Gear Reducers ：1/10 ～ 1/60)
| Size | Reduction ratio | Start-up efficiency | Size | Reduction ratio | Start-up efficiency | Size | Reduction ratio | Start-up efficiency | Size | Reduction ratio | Start-up efficiency |
|---|---|---|---|---|---|---|---|---|---|---|---|
| EWJ25 SWJ25 |
10 | 62% | EWJ50 SWJ50 |
10 | 64% | EW80 SW80 |
10 | 65% | EW150 SW150 |
10 | 66% |
| 15 | 52% | 15 | 57% | 15 | 57% | 15 | 59% | ||||
| 20 | 48% | 20 | 53% | 20 | 53% | 20 | 55% | ||||
| 25 | 45% | 25 | 49% | 25 | 50% | 25 | 53% | ||||
| 30 | 39% | 30 | 41% | 30 | 42% | 30 | 44% | ||||
| 40 | 33% | 40 | 37% | 40 | 37% | 40 | 39% | ||||
| 50 | 29% | 50 | 33% | 50 | 34% | 50 | 37% | ||||
| 60 | 27% | 60 | 30% | 60 | 32% | 60 | 33% | ||||
| EWJ35 SWJ35 |
10 | 61% | EWJ63 SWJ63 |
10 | 64% | EW100 SW100 |
10 | 66% | EW175 SW175 |
10 | 66% |
| 15 | 54% | 15 | 56% | 15 | 59% | 15 | 59% | ||||
| 20 | 47% | 20 | 52% | 20 | 54% | 20 | 55% | ||||
| 25 | 43% | 25 | 49% | 25 | 51% | 25 | 51% | ||||
| 30 | 39% | 30 | 41% | 30 | 44% | 30 | 44% | ||||
| 40 | 31% | 40 | 36% | 40 | 38% | 40 | 39% | ||||
| 50 | 28% | 50 | 33% | 50 | 35% | 50 | 36% | ||||
| 60 | 24% | 60 | 31% | 60 | 33% | 60 | 33% | ||||
| EWJ42 SWJ42 |
10 | 61% | EWJ70 SWJ70 |
10 | 63% | EW125 SW125 |
10 | 66% | EW200 SW200 |
10 | 65% |
| 15 | 54% | 15 | 56% | 15 | 59% | 15 | 58% | ||||
| 20 | 47% | 20 | 52% | 20 | 55% | 20 | 53% | ||||
| 25 | 44% | 25 | 48% | 25 | 51% | 25 | 49% | ||||
| 30 | 38% | 30 | 40% | 30 | 44% | 30 | 42% | ||||
| 40 | 32% | 40 | 36% | 40 | 39% | 40 | 37% | ||||
| 50 | 29% | 50 | 33% | 50 | 35% | 50 | 33% | ||||
| 60 | 26% | 60 | 30% | 60 | 32% | 60 | 30% |
Note) Starting efficiencies are from a standstill speed of 0 r/min. Starting a reducer requires a higher amount of power than during normal operation. Use the values given above for reference.
For the calculation method, please refer to Calculating efficiency.
