China wholesaler 150W Od70mm Single Shaft Robot Brushless Motor Compact Geared DC Motor Low Rpm with Best Sales

Product Description

150W OD70mm Single Shaft Robot Brushless Motor Compact Geared DC Motor low rpm

Product Description

The outer diameter of this series of joint modules ranges from 40mm to 170mm, with exquisite design and compact structure. The small size includes FOC control board, high-precision multi-turn absolute encoder, frameless torque motor, precision harmonic reducer and other main components , saving customers the labor and time cost of selecting, designing, purchasing, and assembling hundreds of mechanical and electronic components.

Product Features

The outer diameter is only 70mm, and the weight is 0.4kg

The compact size of this product includes FOC control board, high-precision multi-turn absolute encoder, frameless torque motor, precision harmonic reducer and other main components
Low-power encoder with only 46 μA standby current.

Product Parameters

Model TD-50-70-PRO-XX TD-50-70-PRO-XXB
Ratio 50/80/100 50/80/100
Start-stop CHINAMFG torque (N.m) 23/29/34 23/29/34
Instantaneous maximum torque (N.m) 43/59/71 43/59/71
Rated torque (N.m) 8.6/13.5/13.5 8.6/13.5/13.5
Output CHINAMFG Speed (RPM) 100/62/50 100/62/50
Rated speed (RPM) 75/46/37 75/46/37
Motor power (W) 150 150
Supply voltage (V) 24-48 24-48
Rated current (A) 3.6 3.6
Peak current(A) 10.8 10.8
Encoder Resolution (Bit) 17 17
Backlash (arcsec) 20/20/10 20/20/10
communication bus CAN CAN
Length(mm) 58.7 83.7
Weight(kg) 0.58 0.8


Packaging & Shipping


This kind of robot joint modules can be used in robots, humanoid robots, and exoskeletons, helping us to quickly build robot arms and greatly shorten the development cycle.

Company Profile

HangZhou CHINAMFG Mechanical&Electrical Equipment Co., Ltd. is a professional manufacturer of Robotic Joint Module. Our factory dedicates to the research of robot joint motor since 2571s, more than 10 years’ experience makes our product quality rank in the leading position in China. Wth an annual output of 80,000 sets of various products for the market, with high precision and stable performance, our robotic joint modules are welcomed by customers from India, Thailand, Iran, South Korea, Russian Federation, Sweden, Ireland, Poland, USA, France and so on.

After Sales Service

1. We accept small order of Joint module;
2. Sample order of Joint module delivery time is in 9 days, mass quantity order lead time is 9-15 days;
3. We can accept payment via paypal, T/T and L/C;
4.Quality assurance of our Joint module is 1 year, and we can provide you professional technical support;

5. We provide free software wand training how to use the products. Engineers are available for technical support.


Q: Are you trading company or manufacturer?
A: We are manufacturer and trading company.

Q: Can I have a sample order?
A: Yes, we welcome sample order to test and check quality.

Q: How long is your delivery time?
A: Due to the complex process, production takes 8-10 working days. For customized goods, please check with us before order.

Q. How do you ship the goods and how long does it take to arrive?
A: Usually by express, like DHL, UPS, FedEx, EMS or TNT; By air and sea are also available.Express takes 3-15 days to arrive.

Q: What is your terms of payment?
A: We accept Trade Assurance Order, TT, Paypal, West Union and L/C.

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Application: Industial Robot
Operating Speed: Adjust Speed
Excitation Mode: Excited
US$ 909/Piece
1 Piece(Min.Order)


Order Sample

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Shipping Cost:

Estimated freight per unit.

about shipping cost and estimated delivery time.
Payment Method:


Initial Payment

Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

gear motor

Where can individuals find reliable resources for learning more about gear motors and their applications?

Individuals seeking to learn more about gear motors and their applications have access to various reliable resources that provide valuable information and insights. Here are some sources where individuals can find reliable information about gear motors:

1. Manufacturer Websites:

Manufacturer websites are a primary source of information about gear motors. Gear motor manufacturers often provide detailed product specifications, application guides, technical documentation, and educational materials on their websites. These resources offer insights into different gear motor types, features, performance characteristics, and application considerations. Manufacturer websites are a reliable and convenient starting point for learning about gear motors.

2. Industry Associations and Organizations:

Industry associations and organizations related to mechanical engineering, automation, and motion control often have resources and publications dedicated to gear motors. These organizations provide technical articles, whitepapers, industry standards, and guidelines related to gear motor design, selection, and application. Examples of such associations include the American Gear Manufacturers Association (AGMA), International Electrotechnical Commission (IEC), and Institute of Electrical and Electronics Engineers (IEEE).

3. Technical Publications and Journals:

Technical publications and journals focused on engineering, robotics, and motion control are valuable sources of in-depth knowledge about gear motors. Publications like IEEE Transactions on Industrial Electronics, Mechanical Engineering magazine, or Motion System Design magazine often feature articles, case studies, and research papers on gear motor technology, advancements, and applications. These publications provide authoritative and up-to-date information from industry experts and researchers.

4. Online Forums and Communities:

Online forums and communities dedicated to engineering, robotics, and automation can be excellent resources for discussions, insights, and practical experiences related to gear motors. Websites like Stack Exchange, engineering-focused subreddits, or specialized forums provide platforms for individuals to ask questions, share knowledge, and engage in discussions with professionals and enthusiasts in the field. Participating in these communities allows individuals to learn from real-world experiences and gain practical insights.

5. Educational Institutions and Courses:

Technical colleges, universities, and vocational training centers often offer courses or programs in mechanical engineering, mechatronics, or automation that cover gear motor fundamentals and applications. These educational institutions provide comprehensive curricula, textbooks, and lecture materials that can serve as reliable resources for individuals interested in learning about gear motors. Additionally, online learning platforms like Coursera, Udemy, or LinkedIn Learning offer courses on topics related to gear motors and motion control.

6. Trade Shows and Exhibitions:

Attending trade shows, exhibitions, and industry conferences related to automation, robotics, or motion control provides opportunities to learn about the latest advancements in gear motor technology. These events often feature product demonstrations, technical presentations, and expert panels where individuals can interact with gear motor manufacturers, industry experts, and other professionals. It’s a great way to stay updated on the latest trends, innovations, and applications of gear motors.

When seeking reliable resources, it’s important to consider the credibility of the source, the expertise of the authors, and the relevance to the specific area of interest. By leveraging these resources, individuals can gain a comprehensive understanding of gear motors and their applications, from basic principles to advanced topics, enabling them to make informed decisions and effectively utilize gear motors in their projects or applications.

gear motor

Can you explain the role of backlash in gear motors and how it’s managed in design?

Backlash plays a significant role in gear motors and is an important consideration in their design and operation. Backlash refers to the slight clearance or play between the teeth of gears in a gear system. It affects the precision, accuracy, and responsiveness of the gear motor. Here’s an explanation of the role of backlash in gear motors and how it is managed in design:

1. Role of Backlash:

Backlash in gear motors can have both positive and negative effects:

  • Compensation for Misalignment: Backlash can help compensate for minor misalignments between gears, shafts, or the load. It allows a small amount of movement before engaging the next set of teeth, reducing the risk of damage due to misalignment. This can be particularly beneficial in applications where precise alignment is challenging or subject to variations.
  • Negative Impact on Accuracy and Responsiveness: Backlash can introduce a delay or “dead zone” in the motion transmission. When changing the direction of rotation or reversing the load, the gear teeth must first overcome the clearance or play before engaging in the opposite direction. This delay can reduce the overall accuracy, responsiveness, and repeatability of the gear motor, especially in applications that require precise positioning or rapid changes in direction or speed.

2. Managing Backlash in Design:

Designers employ various techniques to manage and minimize backlash in gear motors:

  • Tight Manufacturing Tolerances: Proper manufacturing techniques and tight tolerances can help minimize backlash. Precision machining and quality control during the production of gears and gear components ensure closer tolerances, reducing the amount of play between gear teeth.
  • Preload or Pre-tensioning: Applying a preload or pre-tensioning force to the gear system can help reduce backlash. This technique involves introducing an initial force or tension that eliminates the clearance between gear teeth. It ensures immediate contact and engagement of the gear teeth, minimizing the dead zone and improving the overall responsiveness and accuracy of the gear motor.
  • Anti-Backlash Gears: Anti-backlash gears are designed specifically to minimize or eliminate backlash. They typically feature modifications to the gear tooth profile, such as modified tooth shapes or special tooth arrangements, to reduce clearance. Anti-backlash gears can be used in gear motor designs to improve precision and minimize the effects of backlash.
  • Backlash Compensation: In some cases, backlash compensation techniques can be employed. These techniques involve monitoring the position or movement of the load and applying control algorithms to compensate for the backlash. By accounting for the clearance and adjusting the control signals accordingly, the effects of backlash can be mitigated, improving accuracy and responsiveness.

3. Application-Specific Considerations:

The management of backlash in gear motors should be tailored to the specific application requirements:

  • Positioning Accuracy: Applications that require precise positioning, such as robotics or CNC machines, may require tighter backlash control to ensure accurate and repeatable movements.
  • Dynamic Response: Applications that involve rapid changes in direction or speed, such as high-speed automation or servo control systems, may require reduced backlash to maintain responsiveness and minimize overshoot or lag.
  • Load Characteristics: The nature of the load and its impact on the gear system should be considered. Heavy loads or applications with significant inertial forces may require additional backlash management techniques to maintain stability and accuracy.

In summary, backlash in gear motors can affect precision, accuracy, and responsiveness. While it can compensate for misalignments, backlash may introduce delays and reduce the overall performance of the gear motor. Designers manage backlash through tight manufacturing tolerances, preload techniques, anti-backlash gears, and backlash compensation methods. The management of backlash depends on the specific application requirements, considering factors such as positioning accuracy, dynamic response, and load characteristics.

gear motor

What are the different types of gears used in gear motors, and how do they impact performance?

Various types of gears are used in gear motors, each with its unique characteristics and impact on performance. The choice of gear type depends on the specific requirements of the application, including torque, speed, efficiency, noise level, and space constraints. Here’s a detailed explanation of the different types of gears used in gear motors and their impact on performance:

1. Spur Gears:

Spur gears are the most common type of gears used in gear motors. They have straight teeth that are parallel to the gear’s axis and mesh with another spur gear to transmit power. Spur gears provide high efficiency, reliable operation, and cost-effectiveness. However, they can generate significant noise due to the meshing of teeth, and they may produce axial thrust forces. Spur gears are suitable for applications that require high torque transmission and moderate to high rotational speeds.

2. Helical Gears:

Helical gears have angled teeth that are cut at an angle to the gear’s axis. This helical tooth configuration enables gradual engagement and smoother tooth contact, resulting in reduced noise and vibration compared to spur gears. Helical gears provide higher load-carrying capacity and are suitable for applications that require high torque transmission and moderate to high rotational speeds. They are commonly used in gear motors where low noise operation is desired, such as in automotive applications and industrial machinery.

3. Bevel Gears:

Bevel gears have teeth that are cut on a conical surface. They are used to transmit power between intersecting shafts, usually at right angles. Bevel gears can have straight teeth (straight bevel gears) or curved teeth (spiral bevel gears). These gears provide efficient power transmission and precise motion control in applications where shafts need to change direction. Bevel gears are commonly used in gear motors for applications such as steering systems, machine tools, and printing presses.

4. Worm Gears:

Worm gears consist of a worm (a type of screw) and a mating gear called a worm wheel or worm gear. The worm has a helical thread that meshes with the worm wheel, resulting in a compact and high gear reduction ratio. Worm gears provide high torque transmission, low noise operation, and self-locking properties, which prevent reverse motion. They are commonly used in gear motors for applications that require high gear reduction and locking capabilities, such as in lifting mechanisms, conveyor systems, and machine tools.

5. Planetary Gears:

Planetary gears, also known as epicyclic gears, consist of a central sun gear, multiple planet gears, and an outer ring gear. The planet gears mesh with both the sun gear and the ring gear, creating a compact and efficient gear system. Planetary gears offer high torque transmission, high gear reduction ratios, and excellent load distribution. They are commonly used in gear motors for applications that require high torque and compact size, such as in robotics, automotive transmissions, and industrial machinery.

6. Rack and Pinion:

Rack and pinion gears consist of a linear rack (a straight toothed bar) and a pinion gear (a spur gear with a small diameter). The pinion gear meshes with the rack to convert rotary motion into linear motion or vice versa. Rack and pinion gears provide precise linear motion control and are commonly used in gear motors for applications such as linear actuators, CNC machines, and steering systems.

The choice of gear type in a gear motor depends on factors such as the desired torque, speed, efficiency, noise level, and space constraints. Each type of gear offers specific advantages and impacts the performance of the gear motor differently. By selecting the appropriate gear type, gear motors can be optimized for their intended applications, ensuring efficient and reliable power transmission.

China wholesaler 150W Od70mm Single Shaft Robot Brushless Motor Compact Geared DC Motor Low Rpm   with Best Sales China wholesaler 150W Od70mm Single Shaft Robot Brushless Motor Compact Geared DC Motor Low Rpm   with Best Sales
editor by CX 2024-02-12