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| Part Number | 81057 |
| Description | 57BYG STEPPER MOTOR |
| Manufacturer | Makeblock Co., LTD. |
| Series | - |
| Part Status | Active |
| Type | - |
| Coil Type | - |
| Voltage - Rated | - |
| Current Rating | 2.8A |
| Steps per Revolution | 200 |
| Step Angle | 1.8° |
| Accuracy | - |
| Torque - Holding (oz-in / mNm) | 169.96 / 1200 |
| Size / Dimension | Square - 2.217" x 2.217" (56.30mm x 56.30mm) |
| NEMA Frame Size | - |
| Diameter - Shaft | 0.315" (8.00mm) |
| Length - Shaft and Bearing | 0.827" (21.00mm) |
| Mounting Hole Spacing | 1.850" (47.00mm) |
| Termination Style | Wire Leads |
| Operating Temperature | - |
| Coil Resistance | - |
| Features | Flatted Shaft |