Technical Parameters
| Step Angle Accuracy | ±5% |
| Resistance Accuracy | ±10% |
| Inductance Accuracy | ±20% |
| Temperature Rise | 80ºCMax. |
| Ambient Temperature | -10ºC-+50ºC |
| Insulation Resistance | 100MΩMin.500 VDC |
| Dielectric Strength | 500VAC |
| Shaft Radial Play | 0.06Max.(450 g-load) |
| Shaft Axial Play | 0.08Max.(450 g-load) |
| Insulation Class | Class B 130° |
Specifications
| Model No | Rated Voltage | Current /Phase | Resistance /Phase | Inductance /Phase | Holding Torque | #of Leads | Rotor Inertia | Weight | Length | ||
| Single shaft | Double Shaft | V | A | Ω | mH | Oz-in | kg-cm | g-cm² | Kg | mm | |
| 20BYGH28-0204A | 20BYGH28-0204B | 4.8 | 0.2 | 24 | 8 | 2.2 | 0.16 | 4 | 1.8 | 0.05 | 28 |
| 20BYGH30-0506A | 20BYGH30-0506B | 5.75 | 0.5 | 11.5 | 1.7 | 2.5 | 0.18 | 6 | 2 | 0.06 | 30 |
| 20BYGH33-0604A | 20BYGH33-0604B | 3.9 | 0.6 | 6.5 | 2.2 | 2.8 | 0.2 | 4 | 2 | 0.07 | 33 |
| 20BYGH38-0604A | 20BYGH38-0604B | 10 | 0.6 | 10 | 5.5 | 5.6 | 0.4 | 4 | 3.5 | 0.08 | 38 |
Screw Rod Specification
| Screw Diameter (inch) | Screw Diameter (mm) | Lead (inch) | Lead (mm) | Travel Per Step (mm) |
| 0.187 | 4.76 | 0.0014 | 0.635 | 0.0032 |
| 0.197 | 5.0 | 0.079 | 2 | 0.01 |
| 0.138 | 3.5 | 0.079 | 2 | 0.01 |
| 0.138 | 3.5 | 0.158 | 4 | 0.02 |
FAQ
1. Do you have online contact info?
2. How can we know the product quality?
A2: We suggest you to order a sample. Also, you can send us email for detail photos for checking if you cannot get enough information in the product page.
3. How can we get your catalog?
A3: Please go to below website link to download it .-http://sihengmotor.en.made-in-china.com
4. Can we have free sample?
A4: Yes sure, but please pay the shipping cost by youself.
5. Is this your final price? May i have the discount?
A5: Our price is the factory price, and if your quantity is larger, we will allow the discount for you.
6.Is there cheap shipping cost to import to our country?
A6: Yes, we have our regular shipping company, they have very good price.
7. Can we visit your factory?
A7: Yes welcome warmly. Our address is Floor 3,B building,No 388,Songhuang Road, Qingpu District, Shanghai City, China.
8.What is the Warranty for your products?
A8: One year warranty for all electronic products. If any quality problems on our side occured in this period, we will take on the shipping cost and replacement.