NEMA 8 Double Stacked Thickness stepper motor linear actuators have the same cross-section side length but a thicker length, so its force has been greatly improved. NEMA 8 (20mm) linear stepper motors are available in three configurations: captive, non-captive and external linear.
| 21000 Series Size 8 Double Stack Motor(1.8° Step Angle) | ||||
| Part No. | Captive | 21CC4(X)-V | ||
| Non-captive | 21NC4(X)-V | |||
| External Lin. | 21EC4(X)-V | |||
| Wiring | Bipolar | |||
| Rated voltage | 2.5V | 5V | 7.5V | |
| Rated current | 1.32A | 0.65A | 0.43A | |
| Resistance/phase | 1.9Ω | 7.7Ω | 17.3Ω | |
| Inductance/phase | 1.91mH | 7.02mH | 15.95mH | |
| Power consumption | 6.5W | |||
| Temperature rise | 75°C | |||
| Weight | 78g | |||
| Insulation resistance | 20MΩ | |||
Standard motors are Class B rated for maximum temperature of 130℃.Unipolar drive gives approximately 30% less thrust than bipolar drive.
Leadscrew Thread Dimension:
| Screw diameter | Step(mm) | Step(in) | Lead(mm) | Lead(in) | Code |
| φ3.56(9/64in) | 0.001524 | 0.00006 | 0.305 | 0.012 | U |
| 0.003048 | 0.00012 | 0.610 | 0.024 | N | |
| 0.006096 | 0.00024 | 1.219 | 0.048 | K | |
| 0.012192 | 0.00048 | 2.438 | 0.096 | J | |
| 0.005 | 0.00020 | 1 | 0.039 | AB | |
| 0.01 | 0.00039 | 2 | 0.079 | AC | |
| 0.02 | 0.00079 | 4 | 0.157 | AD | |
| 0.04 | 0.00157 | 8 | 0.315 | AE |
* Screw lead could be customized according to customer's request.
