12N.cm 17oz.in 0.67A Nema11 28HS51-0674 mini stepper motor
In the field of lasers and optics they are frequently used in precision positioning equipment such as linear actuators, linear stages, rotation stages, goniometers, and mirror mounts. Other uses are in packaging machinery, and positioning of valve pilot stages for fluid control systems.
Commercially, stepper motors are used in floppy disk drives, flatbed scanners, computer printers, plotters, image scanners, compact disc drives, intelligent lighting, camera lenses, CNC machines and, more recently, in 3D printers.
1.Genaral Specification:
- Model Number: NEMA8
- Step Angle: 1.8 Degree
- Phase: 2phase
- Type: Hybrid
- Model: JK28HS51-0674
- Motor length: 51mm
- Diameter of axle: 5mm
- Holding Torque: 12N.cm;
- Current / Phase: 0.64A
| Step Angle : | 1.8° |
| Step Angle Accuracy | ±5%(full step,no load) |
| Resistance Accuracy | ±10% |
| Inductance Accuracy | ±20% |
| Temperature Rise | 80ºCmax |
| Ambient Temperature | -20ºC~+50ºC |
| Insulation Resistance | 100 MΩ Min. ,500VDC |
| Dielectric Strength | 500VAC for 1minute |
| Shaft Radial Play | 0.02Max. (450g-load) |
| Shaft Axial Play | 0.08Max. (450g-load) |
| Max. radial force | 28N (20mm from the flange) |
| Max. axial force | 10N |
2. Nema 11 Stepper Motor Electrical Specification:
Model No. | Step Angle | Motor Length | Current /Phase | Resistance /Phase | Inductance /Phase | Holding Torque | # of Leads | Rotor Inertia | Motor Weight |
| ( °) | (L)mm | A | Ω | mH | g.cm | No. | g.cm | Kg | |
| JK28HS51-0674 | 1.8 | 51 | 0.67 | 9.2 | 7.2 | 1200 | 4 | 18 | 0.2 |
Matching Stepper motor Driver: JK0220
3.High Rpm Stepper Motor Dimensions: (Unit=mm)
Advantages of Hybrid Stepper Motor
- High reliability
- The rotation angle of the motor is proportional to the input pulse.
- The motor has full torque at standstill (if the windings are energized)
- Precise positioning and repeatability of movement since good stepper motors have an accuracy of 3-5% of a step and this error is non-cumulative from one step to the next.
- Excellent response to starting/stopping/reversing.
- Very reliable since there are no contact brushes in the motor. Therefore, the life of the motor is simply dependent on the life of the bearing.
- The motors response to digital input pulses provides open-loop control, making the motor simpler and less costly to control.
