Inputs
| Field | Description |
|---|---|
| Prime Mover RPM | Motor/engine speed |
| Gear Reducer Ratio | Gearbox reduction ratio |
| Prime Mover Sheave Diameter (in) | Motor sheave size |
| Gear Reducer Sheave Diameter (in) | Gearbox input sheave size |
| Center Distance Of Shafts (in) | Distance between motor and gearbox shafts |
Outputs
Summary
| Output | Description |
|---|---|
| SPM | Calculated strokes per minute |
| Belt Length | Required V-belt length (inches) |
SPM Table
Shows SPM at various prime mover RPM values, from 0 to 2000+ RPM, allowing quick lookup of operating speeds.Stroke Rate Chart
Visual graph showing SPM vs. Prime Mover RPM relationship.Use Cases
- Determine SPM for a given sheave combination
- Select sheave sizes for target SPM
- Calculate belt length for ordering
- Evaluate RPM impact on pumping speed