Changzhou Hetai Motor And Electric Appliance Co., Ltd.
Changzhou Hetai Motor And Electric Appliance Co., Ltd.
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28MM*28MM Nema 11 Compact In Volume Dc Brush Gear Motor 24 V
A brushed DC electric motor is an internally commutated electric motor designed to be run from a direct current power source and utilizing an electric brush for contact. Brushed motors were the first commercially important application of electric power to driving mechanical energy.
They are applied to:
1. In Automobile industry: various fan, wiper, spray pump, turbo timer, rearview mirror etc;
2. In Hotel: automatic door, automatic door locks, automatic curtain, automatic water supply system etc;
3. In Industry and agriculture: PMDC motors are widely used in electrical and automation control and instrumentation;
4. In Medical and healthcare industry: PMDC motors are used more widely, such as medical instruments, surgical tools, electric saws in open-brain surgery treatment;
Electrical Specification
| SPECIFICATIONS WITH PLANETARY GEAR | ||
| Rated Speed | RPM | 78 |
| Rated Voltage | V | 24 |
| Motor Speed | RPM | 5000 |
| Reduction Ratio | 64:1 | |
*Products can be customized by special request.
Advantages:
*Higher efficiency and power density than induction motors.
*Long service life and quiet running thanks to precision ball bearings.
*Wide speed range with full motor output due to linear torque curve Reduced electrical interference emission.
*Mechanically exchangeable with stepper motors, hence less construction expense and greater parts variety.
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GEARBOX PART Electrical Specification:
28 MM High Precision Gearbox
| Housing Material | Bearing at output | Radial load(10mm from flange)N | Shaft axial load(N) | Shaft press-fit force max(N) | Radial play of shaft(mm) | Thrust play of shaft(mm) | Backlash at no-load (°) |
| Power Metallurgy | Sleeve Bearings | ≤80 | ≤30 | ≤200 | ≤0.03 | ≤0.4 | ≤1.5 |
| Reduction ratio | Rated tolerance torque (Nm) | Max momentary tolerance torque (Nm) | Efficiency% | Length (mm) | Weight(g) | Number of gear trains |
| 1/3 | 0.2 | 0.6 | 81% | 28.5 | 105 | 1 |
| 1/6 |
Mechanical Dimension
28 MM Planetary Gearbox
| Housing Material | Bearing at output | Radial load(10mm from flange)N | Shaft axial load(N) | Shaft press-fit force max(N) | Radial play of shaft(mm) | Thrust play of shaft(mm) | Backlash at no-load (°) |
| Power Metallurgy | Sleeve Bearings | ≤80 | ≤30 | ≤200 | ≤0.03 | ≤0.1 | ≤1.5 |
| Reduction ratio | Rated tolerance torque (Nm) | Max momentary tolerance torque (Nm) | Efficiency% | Length (mm) | Weight(g) | Number of gear trains |
| 1/4 | 0.5 | 1.5 | 72% | 29.8 | 92 | 1 |
| 1/30 | ||||||
| 1/64 | 1.8 | 5 | 65% | 40.0 | 105 | 1 |
| 1/107 |
Mechanical Dimension
QUALITY CONTROL PROCESS
Incoming Inspection
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| Measure Diameter | Measure Length | Measure Hardness |
Stator Inspection
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| Measure Height | Measure Resistance | Test Waveform | Test phase | Test withstand voltage |
Rotor Inspection
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| Rotor Positioning | Measure core thickness | Measure Rotor shaft length | Check motor misalignment | Measure the outer circle |
MANUFACTURE EQUIPMENT
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| CNC CENTER | ROTOR GRINDING OUT CIRCLE | LASER SPOT WELDER |
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| AUTOMATIC MULTI-HEAD WINDING MACHINE | AUTOMATIC MULTI-HEAD WINDING MACHINE | WINDING MACHINE |
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| AUTOMATIC ASSEMBLY LINE | ASSEMBLY LINE | ASSEMBLY LINE |
Certificate
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| Stepper motor ROHS report Date: June 09, 2021 | BLDC Motor ROHS report Date: June 09, 2021 | CE cetificate |
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| IATF 16949: 2016 Valid until: 02 June 2024 | ISO 9001: 2015 Valid until: 02 June 2024 |
FAQ
1.Are you factory?