NEMA 8 Stepper Motor, 1.8°, 20*20mm, 4 & 6 Wires
- Stock: In Stock
- Model: P-20BYGH28-38
- SKU: P-20BYGH28-38
$69.99
Ex Tax: $69.99
Buy stepper motor with 2 phase. Nema 8 stepper motor is a high torque hybrid stepper motor with 1.8 deg step angle, single shaft / double shaft, 20*20mm frame size, 3.9V/ 4.8V/ 5.75V/ 10V for selection. Cheap stepper motor provides an effective solution for solar energy, medical equipment, industrial automation requiring reasonable accuracy and torque.
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Technical Parameter
Step Angle Accuracy: ±5% (full step. no load)
Resistance Accuracy: ±10%
Inductance Accuracy: ±20%
Temnerature Rise: 80℃ Max. (rated current, 2 phase on)
Ambient Temperature: -10℃~+50℃
Insulation Resistance: 100MΩ Min.500VDC
Dielectric Strength: 500VAC·5mA for one Min.
Shaft Radial Play: 0.06Max. (450 g-load)
Shaft Axial Play: 0.08Max. (450 g-load)
Insulation Class: Class B 130°
Warranty: 12 months
Certificate: CE, ROHs, ISO/SGS9001
Technical Specification
| Model | Rated Voltage | Rated Current | Phase Resistance | Inductance | Holding Torque | No. of Motor Leads | Rotor Inertia | Weight | Length | |
| Single Shaft | Double Shaft | |||||||||
| P-20BYGH28-0204A | P-20BYGH28-0204B | 4.8V | 0.2A | 24Ω | 8mH | 2.2Oz-in(0.16kg-cm) | 4 | 1.8g-cm2 | 0.05kg | 28mm |
| P-20BYGH30-0506A | P-20BYGH30-0506B | 5.75V | 0.5A | 11.5Ω | 1.7mH | 2.5Oz-in(0.18kg-cm) | 6 | 2.0g-cm2 | 0.06kg | 30mm |
| P-20BYGH33-0604A | P-20BYGH33-0604B | 3.9V | 0.6A | 6.5Ω | 2.2mH | 2.8Oz-in(0.2kg-cm) | 4 | 2.0g-cm2 | 0.07kg | 33mm |
| P-20BYGH38-0604A | P-20BYGH38-0604B | 10V | 0.6A | 10Ω | 5.5mH | 5.6Oz-in(0.4kg-cm) | 4 | 3.5g-cm2 | 0.08kg | 38mm |
NEMA 8 Stepper Motor Dimension (Unit=mm)
NEMA 8 Stepper Motor Wiring Diagram
KNOWLEDGE BASE --- What is stepper motor?
Stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In some cases, the motor's speed and stop position only depend on the frequency and number of pulses of the pulse signal and do not vary from by load. Namely, when a pulse signal is added to the motor, the motor will rotate through a step angle. It is the existence of this linear relationship and feature that stepper motors have only periodic errors and no accumulated errors that make it very simple to use stepper motors to control the speed, position and other control fields.
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