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.
.
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
 |
| Measure Diameter | Measure Length | Measure Hardness |
Stator Inspection
 |
| Measure Height | Measure Resistance | Test Waveform | Test phase | Test withstand voltage |
Rotor Inspection
 |
| 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 |
 |
| AUTOMATIC ASSEMBLY LINE | ASSEMBLY LINE | ASSEMBLY LINE |
Certificate
 |  |  |
| Stepper motor ROHS report Date: June 09, 2021 | BLDC Motor ROHS report Date: June 09, 2021 | CE cetificate |
 |  |
| IATF 16949: 2016 Valid until: 02 June 2024 | ISO 9001: 2015 Valid until: 02 June 2024 |
FAQ
1.Are you factory?
Yes, we are factory. Our brand name Hetai is a well-known micro motor manufacturer for more than 20 years in
China. Main product including hybrid stepper motor, brushless DC motor, servo motor and planetary gearbox.
2. Do you have Other contact info?
Yes, please email us: info@ht-motor.com 3. How can we get your catalog?
Please visit below website to download it :https://new.ht-motor.net/index.php?m=content&c=index&a=lists&catid=136
3.Can I test sample?
Yes, samples and freight are charged.
4.Can I get Customized product?
Sure, all the products can be customized based in special request.
5.How do you ship the goods?
We normally ship goods by express(DHL/UPS/FEDEX/TNT), by sea and by air, also accept freight forwarder.
6. What are the payment terms?
T/T(bank transfer), Paypal(0.5% paypal charges), ALIBABA assurance order accept
7. Is this your final price? May i have the discount?
Our price is the factory price. If you have large quantity, we can negotiate about the discount.
8.What is the Warranty for your products?
Our warranty is for one year. If any quality problems occured on our side during this period, we will take on the shipping cost and replacement. please note damage caused by improper use of the product is not covered by the warranty.
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28MM*28MM Nema 11 Dc Brush Gear Motor Compact In Volume 24 V Images
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