- Timing belt, low speed, high torque
- For speeds from 100 – 1800 RPM
- HiTorque large bench mill
- Fits SIEG SX3.5 bench mills
- Belt classification: 3M-420-15
Timing belt for the HiTorque large bench mill and SIEG SX3.5 bench mills. This is the low speed belt for spindle speeds between 100 – 1800 RPM.It allows for more torque at the lower speeds. For speeds between 280 – 5000 RPM, use the poly-v belt.
See Used On tab for reference to machines using this part and the corresponding drawing number.
This belt is marked 3M-420 and is 15 mm wide.
| Desigination | 420-3M-15 |
| Belt Length | 16.5″ (420 mm) |
| Belt Width | 0.6″ (15 mm) |
| Teeth Distance to Center | 0.1″ (3 mm) |
| Number of Teeth | 140 |








