Adjustable gear (VARIABLE SPEED DEVICE) GONG TZYH TK-A and GONG TZYH TK-B products imported from Taiwan. Available for use by all 10 models with motor power from 1/4 – 20 HP.
Adjustable gear (VARIABLE SPEED DEVICE) GONG TZYH TK-A and GONG TZYH TK-B products imported from Taiwan.
| Model | Power | input shaft | out shaft |
| HP | mm | mm | |
| 40 | 1/4 | 9 | 16 |
| 50 | 1/2 | 12 | 17 |
| 60 | 1 | 15 | 22 |
| 70 | 2 | 18 | 28 |
| 80 | 3 | 22 | 32 |
| 100 | 5 | 25 | 38 |
| 120 | 7.5 | 30 | 45 |
| 135 | 10 | 35 | 55 |
| 155 | 15 | 40 | 60 |
| 175 | 20 | 45 | 65 |
