Low EMI Coreless DC Motor 28mm High End EC Without Cogging
Brand Name:SECORE
Certification:CE ROHS ISO9901
Model Number:SC-CL2856
Minimum Order Quantity:100
Delivery Time:6-10 working days
Payment Terms:T/T, D/A
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Location:
Shenzhen China
Address:
Building 2, Chaoloft Cultural Creative Park, Liukou Community, Dalang Street, Longhua District, Shenzhen
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within 2 hours
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Customized Low EMI Coreless Motor 28mm, High-End EC Motor Coreless Without Cogging
Technical parameter:
| Motor data | Motor model no. | ||
| Values at rated voltage | SC-CL2856 | ||
| At Nomimal | Nominal voltage | V/DC | 24 |
| Nominal speed | RPM | 14940 | |
| Nominal current | A | 3.87 | |
| Nominal Torque | mNm | 45.76 | |
| Free load | No load speed | RPM | 18000 |
| No load current | mA | 240 | |
| At Max Efficiency | Max efficiency | % | 80 |
| Speed | RPM | 16290 | |
| Current | A | 2.271 | |
| Torque | mNm | 25.6 | |
| At Max output power | Max output power | W | 126.9 |
| Speed | RPM | 9000 | |
| Current | A | 10.93 | |
| Torque | mNm | 134.6 | |
| At Stall | current | A | 21.62 |
| torque | mNm | 269.2 | |
| Motor constants | Motor Constants | Ω | 1.11 |
| Terminal resistance | mH | 0.12 | |
| Torque constant | mNm/A | 12.59 | |
| Speed constant | rpm/V | 750 | |
| Speed/torque constant | rpm/mNm | 66.9 | |
| Mechanical time constant | ms | 4.25 | |
| Rotor inertia | g.cm² | 6.06 | |
| Number of pole pairs | 1 | ||
| Number of phases | 3 | ||
| weight of motor | 0 | ||
| Typical noise level | ≤50 | ||
Dimension:
Motor performance curve
Brushed DC motor vs Coreless DC motor
A typical brushed DC motor consists of an outer stator, typically
made of either a permanent magnet or electromagnetic windings, and
an inner rotor made of iron laminations with coil windings. A
segmented commutator and brushes control the sequence in which the
rotor windings are energized, to produce continuous rotation.
The construction of a coreless DC motor eliminates the laminated iron core of the rotor. In other words, Coreless DC motors have a rotor that is hollow and self-supporting,
which reduces mass and inertia. The rotor windings are wound in a skewed, or honeycomb , forming a
self-supporting hollow cylinder or basket. Since it has no iron
core to support the windings, they are usually held together with
epoxy. The stator is made of a rare earth magnet, and placed inside
the cylinder. All of the core produces torque and smooths running.
Coreless DC motors are available in brushed and brushless versions.
As the name suggests, the difference is whether the brushes are
present or not. In the former, the current commutation in the
stator windings and changes in magnetic field orientation is
provided by brushes and commutator, in the latter they are
generated electronically with the rotor position being given by
special "hall sensors".
Low EMI Coreless DC Motor 28mm High End EC Without Cogging
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