| Pin Roller |   | 
 
 
| Symbol | Description | Units | 
|---|---|---|
| JDM | Inertia of drive mechanism | kg-m2 | 
| TDM | Torque of drive mechanism | Nm | 
| aDM | Acceleration of drive mechanism | rad/s2 | 
| h | Efficiency of drive mechanism | 1 | 
| FThrust | Thrust force at load | N | 
| Fv | Force vector at load | N | 
| mLoop | Mass of loop | kg | 
| g | Acceleration due to gravity = 9.81 | m/s2 | 
| nDR | Number of drive rolls | |
| nPR | Number of pinch rolls | |
| nIR | Number of idler rolls | |
| JDR | Inertia of drive roll | kg-m2 | 
| JPR | Inertia of pinch roll | kg-m2 | 
| JIR | Inertia of idler roll | kg-m2 | 
| rDR | Radius of drive roll | m | 
| rPR | Radius of pinch roll | m | 
| rIR | Radius of idler roll | m |