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| PartNumber | 55M048B1B | 55M048B1U | 55M048D2U |
| Description | STEPPER MOTOR PM UNIPOLAR 12V | ||
| Manufacturer | - | - | Portescap |
| Product Category | - | - | Stepper Motors |
| Series | - | - | 55M |
| Type | - | - | Permanent Magnet |
| Current Rating | - | - | 0.4A |
| Termination Style | - | - | Wire Leads |
| Operating Temperature | - | - | -20°C ~ 70°C |
| Features | - | - | Round Shaft |
| Voltage Rated | - | - | 12VDC |
| Size Dimension | - | - | Round - 2.170" Dia (55.12mm) |
| Accuracy | - | - | ±15% |
| Coil Type | - | - | Unipolar |
| Diameter Shaft | - | - | 0.250" (6.35mm) |
| Length Shaft and Bearing | - | - | 0.750" (19.05mm) |
| Mounting Hole Spacing | - | - | 2.630" (66.68mm) |
| Steps per Revolution | - | - | 48 |
| Step Angle | - | - | 7.5° |
| Torque Holding oz in mNm | - | - | 23 / 163 |
| NEMA Frame Size | - | - | - |
| Coil Resistance | - | - | 30 Ohms |