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High Torque Type B2
Open Type: Unit (Hollow Shaft)
WPU-□-□-SRH
The Next Generation Nidec FLEXWAVE – proving to be the superior choice for the next generation drive mechanisms in Robotics, Machine Tool, Medical Equipment, Semiconductor Manufacturing, Satellite Communications and Assembly Automation applications.
Technical Data
* For code details, check Dimensions Table
Ratio Matrix Availability
| Frame Size | 50 Reduction Ratio | 80 Reduction Ratio | 100 Reduction Ratio | 120 Reduction Ratio | 160 Reduction Ratio |
| 35 | ✔ | ✔ | ✔ | ❌ | ❌ |
| 42 | ✔ | ✔ | ✔ | ✔ | ❌ |
| 50 | ✔ | ✔ | ✔ | ✔ | ✔ |
| 63 | ✔ | ✔ | ✔ | ✔ | ✔ |
| 80 | ✔ | ✔ | ✔ | ✔ | ✔ |
| 100 | ✔ | ✔ | ✔ | ✔ | ✔ |
Reducer Specifications
| Frame Size | Ratio R*1 | Nominal Output Torque *2 [Nm] | Maximum Output Torque *3 [Nm] | Emergency Stop Torque *4 [Nm] | Nominal Input Speed *5 [r/min) | Maximum Input Speed *6 [r/min) | Life *7 [hours] |
| 35 | 50 | 7 | 23 | 46 | 3000 | 8500 | 10000 |
| 35 | 80 | 10 | 30 | 61 | 3000 | 8500 | 10000 |
| 35 | 100 | 10 | 36 | 70 | 3000 | 8500 | 10000 |
| 42 | 50 | 21 | 44 | 91 | 3000 | 7300 | 10000 |
| 42 | 80 | 29 | 56 | 113 | 3000 | 7300 | 10000 |
| 42 | 100 | 31 | 70 | 143 | 3000 | 7300 | 10000 |
| 42 | 120 | 31 | 70 | 112 | 3000 | 7300 | 10000 |
| 50 | 50 | 33 | 73 | 127 | 3000 | 6500 | 10000 |
| 50 | 80 | 44 | 96 | 165 | 3000 | 6500 | 10000 |
| 50 | 100 | 52 | 107 | 191 | 3000 | 6500 | 10000 |
| 50 | 120 | 52 | 113 | 191 | 3000 | 6500 | 10000 |
| 50 | 160 | 52 | 120 | 191 | 3000 | 6500 | 10000 |
| 63 | 50 | 51 | 127 | 242 | 3000 | 5600 | 10000 |
| 63 | 80 | 82 | 178 | 332 | 3000 | 5600 | 10000 |
| 63 | 100 | 87 | 204 | 369 | 3000 | 5600 | 10000 |
| 63 | 120 | 87 | 217 | 395 | 3000 | 5600 | 10000 |
| 63 | 160 | 87 | 229 | 408 | 3000 | 5600 | 10000 |
| 80 | 50 | 99 | 281 | 497 | 3000 | 4800 | 10000 |
| 80 | 80 | 153 | 395 | 738 | 3000 | 4800 | 10000 |
| 80 | 100 | 178 | 433 | 841 | 3000 | 4800 | 10000 |
| 80 | 120 | 178 | 459 | 892 | 3000 | 4800 | 10000 |
| 80 | 160 | 178 | 484 | 892 | 3000 | 4800 | 10000 |
| 100* | 50 | 178 | 523 | 892 | 3000 | 4000 | 10000 |
| 100* | 80 | 268 | 675 | 1270 | 3000 | 4000 | 10000 |
| 100* | 100 | 345 | 738 | 1400 | 3000 | 4000 | 10000 |
| 100* | 120 | 382 | 802 | 1530 | 3000 | 4000 | 10000 |
| 100* | 160 | 382 | 841 | 1530 | 3000 | 4000 | 10000 |
- Reduction ratio is to be calculated by the formula in the previous page, using R value in this table.
- The maximum allowable value at the input rotation speed of 2000r/min
- The maximum torque when starting and stopping.
- The maximum torque when it receives shock.
- The maximum average input speed.
- The maximum input speed.
- The life time at the input rotation speed of 2000 r/min and nominal output torque.
*100 frame option is currently only available for open type
* 100 frame option is available for S: Simple unit type and U: Unit type (Input shaft unit) and (Hollow shaft)
Open Type: Unit (Hollow Shaft)
WPU-□-□-SRH Dimensions
| Frame Size | Weight Kg | Moment of Inertia x10-4kgm² |
| 35 | 0.72 | 0.0924 |
| 42 | 1.0 | 0.207 |
| 50 | 1.4 | 0.408 |
| 63 | 2.1 | 1.06 |
| 80 | 4.2 | 2.72 |
| 100 | 7.2 | 8.66 |
[mm]
| Frame Size | LA | LB | LC | LD | LE | LF | LG | LH | LJ | LK | LL | LP | LQ | LR |
| 35 | 44 | 36 | 54 | 70 | 52.5 | 20.5 | 12 | 20 | 7.5 | 8 | 9 | 2.5 | 5.5 | 6.5 |
| 42 | 54 | 45 | 64 | 80 | 56.5 | 23 | 12 | 21.5 | 8.5 | 8.5 | 10 | 2.5 | 5.5 | 6.5 |
| 50 | 62 | 50 | 75 | 90 | 51.5 | 25 | 5 | 21.5 | 7 | 9 | 10.5 | – | – | – |
| 63 | 77 | 60 | 90 | 110 | 55.5 | 26 | 6 | 23.5 | 6 | 8.5 | 10.5 | – | – | – |
| 80 | 100 | 85 | 115 | 142 | 65.5 | 32 | 7 | 26.5 | 5 | 9.5 | 12 | – | – | – |
| 100 | 122 | 100 | 140 | 170 | 79 | 38 | 8 | 33 | 7 | 13 | 14 | – | – | – |
| Frame Size | SA | SB | SC | SD | SE | SF | M | ST | SU | N | LT |
| 35 | 64 | – | 14 | 20 | 74 | 36 | 8 | 3.5 | M3 | 8 | M3 X 5, ∅ 3.5 X 11.5 |
| 42 | 74 | – | 19 | 25 | 84 | 45 | 12 | 3.5 | M3 | 16 | M3 X 6, ∅ 3.5 X 12 |
| 50 | 84 | 25.5 | 21 | 30 | 95 | – | 12 | 3.5 | M3 X 6 | 16 | M3 X 6, ∅ 3.5 X 13.5 |
| 63 | 102 | 33.5 | 29 | 38 | 115 | – | 12 | 4.5 | M3 X 6 | 16 | M4 X 7, ∅ 4.5 X 15.5 |
| 80 | 132 | 40.5 | 36 | 45 | 147 | – | 12 | 5.5 | M3 X 6 | 16 | M5 X 8, ∅ 5.5 X 20.5 |
| 100 | 158 | 52 | 46 | 59 | 175 | – | 12 | 6.6 | M4 X 8 | 16 | M6 X 10, ∅ 6.6 X 25 |