SIZING AND SELECTION PRECISION COUPLINGS LINE SHAFTS ZA l EZ
Symbols
| A | Total length (mm) |
| AB | Distance between flextures (mm) AB = (A - 2xN) |
| Z | Tube length (mm) Z = (A – 2xH) |
| H | Length of coupling ends (mm) |
| N | Length to flexture (mm) |
| TAS | Peak torque of the drive (Nm) |
| φ | Torsional deflection (degree) |
| CTB | Torsional stiffness of both flexible elements (Nm/rad) |
| CTZWR | Torsional stiffness per 1m of tubing (Nm/rad) |
| CTZA | Total torsional stiffness (Nm/rad) |
| nk | Critical speed (1/min.) |
| CTdynE | Dynamic torsional stiffness of both elastomer inserts (Nm/rad) |
CTdynEZ
| Total torsional stiffness (Nm/rad)
|
R+W Calculation Program
Using proprietary software, R+W will calculate the specific mechanical details of exactly the model you plan to use. Overall length, tube materials (e.g. steel, aluminum, CFK), and other factors are used to determine a number of performance values unique to your line shaft coupling.
| Critical Speed | nK = 1/min. |
| Torsional stiffness of tubing | CTZWR = Nm/rad |
| Overall stiffness | CTZA = Nm/rad |
| Torsional Deflection | φ = Grad-Min-Sec |
| Total weight | m = kg |
| Moment of inertia | J = kgm² |
| Maximum misalignment | Δ Kr = mm |