28mm NEMA 11 Low Noise 24V Dc Motor Gearbox 78 Rpm 0.20A
28mm NEMA 11 Low Noise 24V DC Brush Gear Motor with gearbox 78 Rpm 0.20A
Brushed DC Motor Working Principle
When power supplies to the motor through battery or any DC source, electricity flows from the source to the armature through the brushes which usually locates on opposite sides of the motors shaft. Brushes are the very importent part of this motor. These brushes transfer electric current to the armature through physical contact with the commutator.
As soon as the armature coil gets energy or power, it begins to behave like a magnet. And at this point its poles start repelling the poles of the permanent magnet which makes up stator. As the poles repel, the motor shaft where the armature coil attached begins to rotate with a speed and torque. The Speed and torque depends on the strength of the magnetic field around the armature.
Usually the strength of the magnetic field is a function of the voltage applied at the brushes and the strength of the permanent magnet used for the stator.
Electrical Specification:
| Test items | Technical requirement | ||||
| Standard | Min | Max | Unit | ||
| Gearbox width | φ28 | / | / | mm | |
| Total length | 86.7±1 | 85.70 | 87.70 | mm | |
| Motor outer diameter | φ29.4Max | / | 29.40 | mm | |
| Motor length | φ22±0.1 | 21.90 | 22.10 | mm | |
| Thread pitch | 2 | / | / | mm | |
| Boss height | M3 | / | / | / | |
| Mechanical behavior | No-load current | ≤0.2 | / | 0.20 | A |
| No-load speed | 78±15%rpm | 77.85 | 78.15 | RPM | |
| Turn around | Operates facing the front end of the shaft | CCW | |||
| Sound | Nothing unusual | ||||
Technical requirements:
Mechanical Dimension
Changzhou Hetai Motors
Hetai is located in ChangZhou, JiangSu province. Our workshop area is over 15,000㎡. Since Hetai founded in 1999, the specialization, scale of production has ensured to manufacture five million motors every year.
ChangZhou Hetai Motors is an experienced motor manufacturer. For more than 20 years, Hetai dedicates to provide professional electrical integration design and automation strategies for customers. We have variable manufacturing equipment, such as assembly line, Automatic cylindrical grinder and CNC machining centers as well.
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Manufacture Equipment
Hetai has several sophisticated instruments and equipment,such as Laboratory,Rotor Grinding Outer Circle,CNC Center.We also have several fully automatic modern assembly lines and several test workshops.
Participate in the exhibition
Founded in 1951, ITMA is one of the most authoritative brands in the textile machinery industry, providing the latest technology platform for cutting-edge textile and garment machinery.The exhibition has attracted 120,000 visitors from 147 countries, aiming to explore new ideas and seek sustainable development.In order to maintain our influence and competitive advantage in textile machinery, Hetai has involved in the ITMA exhibition since 2015.
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