Gearing Arrangement: Harmonic
Output Torque: 0-35 N.m
Rated Power: 50-100 W
Input Speed: 0-8000 rpm
Output Speed: 0-266 rpm
Model Number: CSD-H-14 50k 100k
Ratio: 50k 100k
Rated Torque 2000rpm: 5.4 N.m
Permissible Maximum Torque (Start Stop ): 19 N.m
Permissible Maximum Average Torque: 7.7 N.m
Instantaneous Permissible Maximum Torque: 35 N.m
Permissible Maximum Input Speed: 8000 rpm
Permissible Average Input Speed: 3500 rpm
Backlash: less than 10 arcsec
Designed Lifespan: 15000 hrs
Packaging Details: One Set/Carton
Port: HangZhou

High Precision Small Harmonic Drive Nema 17 Stepper Motor Component Sets for Mining Machine CSD-H-14 50k 100k

About Harmonic Drive Reducer The Principle of Gear Transmission Harmonic gear transmission was invented by the American inventor C.W.Musser in 1955. It is a new type of transmission that utilizes the elastic deformation of the flexible working member into the motion or power transmission. It breaks through the mechanical transmission using rigid members. The mechanism’s model uses a flexible member to achieve mechanical transmission, resulting in a range of special features that are difficult to achieve with other transmissions. The deformation process of the intermediate flexible member is basically a symmetrical harmonic. In addition to the former Soviet Union referred to this type of transmission as wave drive or flexible wheel drive, the United States, Britain, Germany, Japan and other countries are called “harmonic transmission.” The Composition of the Gear Transmission Circular Spline: it has 2 more teeth than the Flexspline and is generally mounted CZPT a housing.Flexspline: It is a non-rigid, thin cylindrical cup with external teeth on the open end of the cup. It fits over the Wave Generator and takes on its elliptical shape. The Flexspline is generally used as the output of the gear.Wave Generator: The Wave Generator is a thin, raced-ball bearing fitted CZPT an elliptical hub. This serves as a high-efficiency torque converter and is generally mounted CZPT the input or motor shaft. Principle of Harmonic Gear Reductor The principle of harmonic gear reduction is to use the relative motion of the Flexspline, Circular Spline and the wave generator, mainly the controllable elastic deformation of the flexspline to realize the motion and power transmission. The elliptical cam in the wave generator rotates in the flexible wheel to deform the flexspline. When the Flexspline teeth and the Circular Spline teeth enter and mesh with each other which are at the ends of the elliptical cam long axis of the wave generator, the Flexspline teeth at short axis ends are disengaged from the steel wheel teeth. For the teeth between the long axis and the short axis of the wave generator, the semi-engaged state which gradually enters the engagement along different sections of the 2 stages of the Flexspline and the Circular Spline is called a biting. It is in a state of gradual withdrawal from engagement, which is called disengaging. When the wave generator rotates continuously, the flexspline is constantly deformed, so that the teeth of 2 wheels are constantly changing their original working states during the 4 movements of meshing, biting, engaging and disengaging, generating a staggering tooth movement and realizing the motion transmission from the wave generator to the flexspline.

3D Model
Product Uses

Harmonic gear reducer in aviation, aerospace, energy, navigation, shipbuilding, bionic machinery, commonly used ordnance, machine tools, instruments, electronic equipment, mine metallurgy, transportation, lifting machinery, petrochemical machinery, textile machinery, High Precision Right Angle Speed Reducer 3 to 100 Ratio Helical Gearbox Planetary Gear Box agricultural machinery and medical equipment are increasingly widely used, especially in the high dynamic performance servo system, the harmonic gear transmission shows its superiority. It transmits power from tens of watts to tens of kilowatts, but high-power harmonic gear drives are mostly used in short-term work fields.

Ordering Code of Harmonic Drive Reducer

Why Choose Us1,SaiNi provides a wide range of standard and customized motion control solutions and mechanical transmission solutions.

2,As a professional factory, we can provide customers with very competitive price with good quality. GIGAGER speed reducers are featured with lower backlash (≤1 arcmin), higher efficiency (≥95%) and lower noise (65dBA). And all gearboxes produced by SaiNi will be tested strictly before they leave the factory. Besides, one-year’s warranty and life long after-sales service is offered to our customers.

3,We offer 24 hours professional technical support.

4,We offer custom built service according to your requirement.

5,Fast delivery time. For standard speed reducers, we have sufficient stock and can delivery to the customer in very short time.
Company Information
HangZhou SaiNi Mechanical & Electrical Equipment Co., Ltd. is a professional manufacturer integrated with production, R & D and sales for more than 10 years in China. We supply high precision hollow rotary actuator, harmonic drive gearboxes, high precision planetary gearboxes, 90 degree gearboxes ( for servo motors and stepper motors), right angle hollow reducer, high precision alignment platform, etc.

Besides of providing of the wide range of standard speed reducers, customized service is also available for motion control solutions and mechanical transmission solutions for customers all over the world for lithium battery industry, robot industry, mobile phone industry, printing industry, laser industry, medical industry, etc. The product served for the equipment of logo printing, CNC machine tools, High Performance Nema23 Planetary Gearbox Ratio 1 packaging and printing program, welding and cutting, laser cutting machines, woodworking engraving machines, full servo paper tissue machineries, precision concave-convex printing machines, precision coating machines, servo pipe benders, digital control spring machine, and other equipment with high degree of automation.

HangZhou SaiNi Mechanical owns the brand G+, named GIGAGER.

Since its establishment, the company has been committed to providing customers with high quality and high performance products, and constantly introducing high-end well known brands at home and abroad to meet the demand of automation industry in China. Through continuous efforts and development, SaiNi sales network has been set up all over China, now, we are making efforts on developing overseas sales network around the globe. You are welcomed to join us to be a distributor in your local market. We can offer you full support from pricing, catalogue and technical support, etc. If we cooperate in depth, we are willing to bear part of the cost if you promote our speed reducers in the local market, such as attending the exhibition.

FAQQ1. How to choose a reducer which meets our requirement?A: You can refer to our catalogue to choose the reducer or we can help to choose when you provide the technical information of required output torque, output speed and motor parameter etc.
Q2. What information shall we give before placing a purchase order?A: Please tell me Type of the reducer, ratio, input and output type, input flange, mounting position, and motor information etc.
Q3. Do you sell the motors?A: We have stable motors suppliers who have been cooperated with us for a long-time. We can provide motors with high quality.
Q4. Are you a manufactuer or trading company?A: We are a manufacturer.
Q5. What are your terms of payment?A: 100% before delivery. We’ll show you the photos of the products and packages before the delivery or you can do inspection before delivery.
Q6. What are your terms of delivery?A: EXW, FOB, CIF.
Q7. How about your delivery time?A: Generally, it will take 5 days after receiving your payment. The specific delivery time depends on the items and the quantity of your order.
Q8. Can you produce according to the samples?A: Yes, we can produce as per your samples or technical drawings. We can build the molds and fixtures.
Q9. What is your sample policy?A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q10. Do you test all your goods before delivery?A: Yes, we have 100% test before delivery
Q11: How do you make our business long-term and good relationship?A: 1. We keep good quality and competitive price to ensure our customers benefit;A: 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

Spiral Gears for Right-Angle Right-Hand Drives

Spiral gears are used in mechanical systems to transmit torque. The bevel gear is a particular type of spiral gear. It is made up of two gears that mesh with one another. Both gears are connected by a bearing. The two gears must be in mesh alignment so that the negative thrust will push them together. If axial play occurs in the bearing, the mesh will have no backlash. Moreover, the design of the spiral gear is based on geometrical tooth forms.

Equations for spiral gear

The theory of divergence requires that the pitch cone radii of the pinion and gear be skewed in different directions. This is done by increasing the slope of the convex surface of the gear’s tooth and decreasing the slope of the concave surface of the pinion’s tooth. The pinion is a ring-shaped wheel with a central bore and a plurality of transverse axes that are offset from the axis of the spiral teeth.
Spiral bevel gears have a helical tooth flank. The spiral is consistent with the cutter curve. The spiral angle b is equal to the pitch cone’s genatrix element. The mean spiral angle bm is the angle between the genatrix element and the tooth flank. The equations in Table 2 are specific for the Spread Blade and Single Side gears from Gleason.
The tooth flank equation of a logarithmic spiral bevel gear is derived using the formation mechanism of the tooth flanks. The tangential contact force and the normal pressure angle of the logarithmic spiral bevel gear were found to be about twenty degrees and 35 degrees respectively. These two types of motion equations were used to solve the problems that arise in determining the transmission stationary. While the theory of logarithmic spiral bevel gear meshing is still in its infancy, it does provide a good starting point for understanding how it works.
This geometry has many different solutions. However, the main two are defined by the root angle of the gear and pinion and the diameter of the spiral gear. The latter is a difficult one to constrain. A 3D sketch of a bevel gear tooth is used as a reference. The radii of the tooth space profile are defined by end point constraints placed on the bottom corners of the tooth space. Then, the radii of the gear tooth are determined by the angle.
The cone distance Am of a spiral gear is also known as the tooth geometry. The cone distance should correlate with the various sections of the cutter path. The cone distance range Am must be able to correlate with the pressure angle of the flanks. The base radii of a bevel gear need not be defined, but this geometry should be considered if the bevel gear does not have a hypoid offset. When developing the tooth geometry of a spiral bevel gear, the first step is to convert the terminology to pinion instead of gear.
The normal system is more convenient for manufacturing helical gears. In addition, the helical gears must be the same helix angle. The opposite hand helical gears must mesh with each other. Likewise, the profile-shifted screw gears need more complex meshing. This gear pair can be manufactured in a similar way to a spur gear. Further, the calculations for the meshing of helical gears are presented in Table 7-1.

Design of spiral bevel gears

A proposed design of spiral bevel gears utilizes a function-to-form mapping method to determine the tooth surface geometry. This solid model is then tested with a surface deviation method to determine whether it is accurate. Compared to other right-angle gear types, spiral bevel gears are more efficient and compact. CZPT Gear Company gears comply with AGMA standards. A higher quality spiral bevel gear set achieves 99% efficiency.
A geometric meshing pair based on geometric elements is proposed and analyzed for spiral bevel gears. This approach can provide high contact strength and is insensitive to shaft angle misalignment. Geometric elements of spiral bevel gears are modeled and discussed. Contact patterns are investigated, as well as the effect of misalignment on the load capacity. In addition, a prototype of the design is fabricated and rolling tests are conducted to verify its accuracy.
The three basic elements of a spiral bevel gear are the pinion-gear pair, the input and output shafts, and the auxiliary flank. The input and output shafts are in torsion, the pinion-gear pair is in torsional rigidity, and the system elasticity is small. These factors make spiral bevel gears ideal for meshing impact. To improve meshing impact, a mathematical model is developed using the tool parameters and initial machine settings.
In recent years, several advances in manufacturing technology have been made to produce high-performance spiral bevel gears. Researchers such as Ding et al. optimized the machine settings and cutter blade profiles to eliminate tooth edge contact, and the result was an accurate and large spiral bevel gear. In fact, this process is still used today for the manufacturing of spiral bevel gears. If you are interested in this technology, you should read on!
The design of spiral bevel gears is complex and intricate, requiring the skills of expert machinists. Spiral bevel gears are the state of the art for transferring power from one system to another. Although spiral bevel gears were once difficult to manufacture, they are now common and widely used in many applications. In fact, spiral bevel gears are the gold standard for right-angle power transfer.While conventional bevel gear machinery can be used to manufacture spiral bevel gears, it is very complex to produce double bevel gears. The double spiral bevel gearset is not machinable with traditional bevel gear machinery. Consequently, novel manufacturing methods have been developed. An additive manufacturing method was used to create a prototype for a double spiral bevel gearset, and the manufacture of a multi-axis CNC machine center will follow.
Spiral bevel gears are critical components of helicopters and aerospace power plants. Their durability, endurance, and meshing performance are crucial for safety. Many researchers have turned to spiral bevel gears to address these issues. One challenge is to reduce noise, improve the transmission efficiency, and increase their endurance. For this reason, spiral bevel gears can be smaller in diameter than straight bevel gears. If you are interested in spiral bevel gears, check out this article.

Limitations to geometrically obtained tooth forms

The geometrically obtained tooth forms of a spiral gear can be calculated from a nonlinear programming problem. The tooth approach Z is the linear displacement error along the contact normal. It can be calculated using the formula given in Eq. (23) with a few additional parameters. However, the result is not accurate for small loads because the signal-to-noise ratio of the strain signal is small.
Geometrically obtained tooth forms can lead to line and point contact tooth forms. However, they have their limits when the tooth bodies invade the geometrically obtained tooth form. This is called interference of tooth profiles. While this limit can be overcome by several other methods, the geometrically obtained tooth forms are limited by the mesh and strength of the teeth. They can only be used when the meshing of the gear is adequate and the relative motion is sufficient.
During the tooth profile measurement, the relative position between the gear and the LTS will constantly change. The sensor mounting surface should be parallel to the rotational axis. The actual orientation of the sensor may differ from this ideal. This may be due to geometrical tolerances of the gear shaft support and the platform. However, this effect is minimal and is not a serious problem. So, it is possible to obtain the geometrically obtained tooth forms of spiral gear without undergoing expensive experimental procedures.
The measurement process of geometrically obtained tooth forms of a spiral gear is based on an ideal involute profile generated from the optical measurements of one end of the gear. This profile is assumed to be almost perfect based on the general orientation of the LTS and the rotation axis. There are small deviations in the pitch and yaw angles. Lower and upper bounds are determined as – 10 and -10 degrees respectively.
The tooth forms of a spiral gear are derived from replacement spur toothing. However, the tooth shape of a spiral gear is still subject to various limitations. In addition to the tooth shape, the pitch diameter also affects the angular backlash. The values of these two parameters vary for each gear in a mesh. They are related by the transmission ratio. Once this is understood, it is possible to create a gear with a corresponding tooth shape.
As the length and transverse base pitch of a spiral gear are the same, the helix angle of each profile is equal. This is crucial for engagement. An imperfect base pitch results in an uneven load sharing between the gear teeth, which leads to higher than nominal loads in some teeth. This leads to amplitude modulated vibrations and noise. In addition, the boundary point of the root fillet and involute could be reduced or eliminate contact before the tip diameter.