Product Description
| sun gear spline shaft | |
| Tooth trace | Involute |
| material | 18Cr2Ni4WA |
| Process | Forging, quenching and tempering, teeth grinding, spline hobbing |
| Pressure angle | Spline 30°, Gear teeth 20° |
| Quality level | Gear part AGMA grade 10; Spline part GB3478 grade 6 |
| Type | Mn=7, Z=16, a=20°, Mn=5, Z=18, a=30°; Mn=6, Z=19, a=20°, Mn=2.5, Z=34, a=30° |
Machining Capability
Our Gear, Pinion Shaft, Ring Gear Capabilities:
| Capabilities of Gears/ Splines | ||||||
| Item | Internal Gears and Internal Splines | External Gears and External Splines | ||||
| Milled | Shaped | Ground | Hobbed | Milled | Ground | |
| Max O.D. | 2500 mm | |||||
| Min I.D.(mm) | 30 | 320 | 20 | |||
| Max Face Width(mm) | 500 | 1480 | ||||
| Max DP | 1 | 0.5 | 1 | 0.5 | ||
| Max Module(mm) | 26 | 45 | 26 | 45 | ||
| DIN Class Level | DIN Class 8 | DIN Class 4 | DIN Class 8 | DIN Class 4 | ||
| Tooth Finish | Ra 3.2 | Ra 0.6 | Ra 3.2 | Ra 0.6 | ||
| Max Helix Angle | ±22.5° | ±45° | ||||
Our Main Product Range
1. Spur Gear
2. Planetary Gear
3. Metal Gears
4. CHINAMFG
5. Ring Gear
6. Gear Shaft
7. Helical Gear
8. Pinion Shaft
9. Spline Shaft
Company Profile
1. 21 years experience in high quality gear, gear shaft’s production, sales and R&D.
2. Our Gear, Gear Shaft are certificated by ISO9001: 2008 and ISO14001: 2004.
3. CHINAMFG has more than 50 patents in high quality Gear, Gear Shaft manufacturing.
4. CHINAMFG products are exported to America, Europe.
5. Experience in cooperate with many Fortune 500 Companies
Our Advantages
1) In-house capability: OEM service as per customers’ requests, with in-house tooling design & fabricating
2) Professional engineering capability: On product design, optimization and performance analysis
3) Manufacturing capability range: DIN 3960 class 8 to 4, ISO 1328 class 8 to 4, AGMA 2000 class 10-15, JIS 1702-1703 class 0 to 2, etc.
4) Packing: Tailor-made packaging method according to customer’s requirement
5) Just-in-time delivery capability
FAQ
1. Q: Can you make as per custom drawing?
A: Yes, we can do that.
2. Q: If I don’t have drawing, what can you do for me?
A: If you don’t have drawing, but have the sample part, you may send us. We will check if we can make it or not.
3. Q: How do you make sure the quality of your products?
A: We will do a series of inspections, such as:
A. Raw material inspection (includes chemical and physical mechanical characters inspection),
B. Machining process dimensional inspection (includes: 1st pc inspection, self inspection, final inspection),
C. Heat treatment result inspection,
D. Gear tooth inspection (to know the achieved gear quality level),
E. Magnetic particle inspection (to know if there’s any cracks in the gear).
We will provide you the reports 1 set for each batch/ shipment. /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Material: | Alloy Steel |
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| Load: | Drive Shaft |
| Stiffness & Flexibility: | Stiffness / Rigid Axle |
| Customization: |
Available
| Customized Request |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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How does the design of a spline shaft affect its performance?
The design of a spline shaft plays a crucial role in determining its performance characteristics. Here’s a detailed explanation:
1. Torque Transmission:
The design of the spline shaft directly affects its ability to transmit torque efficiently. Factors such as the spline profile, number of splines, and engagement length influence the torque-carrying capacity of the shaft. A well-designed spline profile with optimized dimensions ensures maximum contact area and load distribution, resulting in improved torque transmission.
2. Load Distribution:
A properly designed spline shaft distributes the applied load evenly across the engagement surfaces. This helps to minimize stress concentrations and prevents localized wear or failure. The design should consider factors such as spline profile geometry, tooth form, and surface finish to achieve optimal load distribution and enhance the overall performance of the shaft.
3. Misalignment Compensation:
Spline shafts can accommodate a certain degree of misalignment between the mating components. The design of the spline profile can incorporate features that allow for angular or parallel misalignment, ensuring effective power transmission even under misaligned conditions. Proper design considerations help maintain smooth operation and prevent excessive stress or premature failure.
4. Torsional Stiffness:
The design of the spline shaft influences its torsional stiffness, which is the resistance to twisting under torque. A stiffer shaft design reduces torsional deflection, improves torque response, and enhances the system’s overall performance. The shaft material, diameter, and spline profile all contribute to achieving the desired torsional stiffness.
5. Fatigue Resistance:
The design of the spline shaft should consider fatigue resistance to ensure long-term durability. Fatigue failure can occur due to repeated or cyclic loading. Proper design practices, such as optimizing the spline profile, selecting appropriate materials, and incorporating suitable surface treatments, can enhance the fatigue resistance of the shaft and extend its service life.
6. Surface Finish and Lubrication:
The surface finish of the spline shaft and the lubrication used significantly impact its performance. A smooth surface finish reduces friction, wear, and the potential for corrosion. Proper lubrication ensures adequate film formation, reduces heat generation, and minimizes wear. The design should incorporate considerations for surface finish requirements and lubrication provisions to optimize the shaft’s performance.
7. Environmental Considerations:
The design should take into account the specific environmental conditions in which the spline shaft will operate. Factors such as temperature, humidity, exposure to chemicals, or abrasive particles can affect the shaft’s performance and longevity. Suitable material selection, surface treatments, and sealing mechanisms can be incorporated into the design to withstand the environmental challenges.
8. Manufacturing Feasibility:
The design of the spline shaft should also consider manufacturing feasibility and cost-effectiveness. Complex designs may be challenging to produce or require specialized manufacturing processes, resulting in increased production costs. Balancing design complexity with manufacturability is crucial to ensure a practical and efficient manufacturing process.
By considering these design factors, engineers can optimize the performance of spline shafts, resulting in enhanced torque transmission, improved load distribution, misalignment compensation, torsional stiffness, fatigue resistance, surface finish, and environmental compatibility. A well-designed spline shaft contributes to the overall efficiency, reliability, and longevity of the mechanical system in which it is used.
What materials are commonly used in the construction of spline shafts?
Various materials are commonly used in the construction of spline shafts, depending on the specific application requirements. Here’s a list of commonly used materials:
1. Steel:
Steel is one of the most widely used materials for spline shafts. Different grades of steel, such as carbon steel, alloy steel, or stainless steel, can be employed based on factors like strength, hardness, and corrosion resistance. Steel offers excellent mechanical properties, including high strength, durability, and wear resistance, making it suitable for a broad range of applications.
2. Alloy Steel:
Alloy steel is a type of steel that contains additional alloying elements, such as chromium, molybdenum, or nickel. These alloying elements enhance the mechanical properties of the steel, providing improved strength, toughness, and wear resistance. Alloy steel spline shafts are commonly used in applications that require high torque capacity, durability, and resistance to fatigue.
3. Stainless Steel:
Stainless steel is known for its corrosion resistance properties, making it suitable for applications where the spline shaft is exposed to moisture or corrosive environments. Stainless steel spline shafts are commonly used in industries such as food processing, chemical processing, marine, and medical equipment.
4. Aluminum:
Aluminum is a lightweight material with good strength-to-weight ratio. It is often used in applications where weight reduction is a priority, such as automotive and aerospace industries. Aluminum spline shafts can provide advantages such as decreased rotating mass and improved fuel efficiency.
5. Titanium:
Titanium is a strong and lightweight material with excellent corrosion resistance. It is commonly used in high-performance applications where weight reduction, strength, and corrosion resistance are critical factors. Titanium spline shafts find applications in aerospace, motorsports, and high-end industrial equipment.
6. Brass:
Brass is an alloy of copper and zinc, offering good machinability and corrosion resistance. It is often used in applications that require electrical conductivity or a non-magnetic property. Brass spline shafts can be found in industries such as electronics, telecommunications, and instrumentation.
7. Plastics and Composite Materials:
In certain applications where weight reduction, corrosion resistance, or noise reduction is important, plastics or composite materials can be used for spline shafts. Materials such as nylon, acetal, or fiber-reinforced composites can provide specific advantages in terms of weight, low friction, and resistance to chemicals.
It’s important to note that material selection for spline shafts depends on factors such as load requirements, environmental conditions, operating temperatures, and cost considerations. Engineers and designers evaluate these factors to determine the most suitable material for a given application.
In which industries are spline shafts typically used?
Spline shafts find applications in a wide range of industries where torque transmission, relative movement, and load distribution are critical. Here’s a detailed explanation:
1. Automotive Industry:
The automotive industry extensively uses spline shafts in various components and systems. They are found in transmissions, drivelines, steering systems, differentials, and axle assemblies. Spline shafts enable the transmission of torque, accommodate relative movement, and ensure efficient power transfer in vehicles.
2. Aerospace and Defense Industry:
Spline shafts are essential in the aerospace and defense industry. They are used in aircraft landing gear systems, actuation mechanisms, missile guidance systems, engine components, and rotor assemblies. The aerospace and defense sector relies on spline shafts for precise torque transfer, relative movement accommodation, and critical control mechanisms.
3. Industrial Machinery and Equipment:
Spline shafts are widely employed in industrial machinery and equipment. They are used in gearboxes, machine tools, pumps, compressors, conveyors, printing machinery, and packaging equipment. Spline shafts enable torque transmission, accommodate misalignments and vibrations, and ensure accurate movement and synchronization of machine components.
4. Agriculture and Farming:
The agriculture and farming industry extensively uses spline shafts in equipment such as tractors, harvesters, and agricultural implements. Spline shafts are found in power take-off (PTO) units, transmission systems, hydraulic mechanisms, and steering systems. They enable torque transfer, accommodate relative movement, and provide flexibility in agricultural machinery.
5. Construction and Mining:
In the construction and mining industries, spline shafts are used in equipment such as excavators, loaders, bulldozers, and drilling rigs. They are found in hydraulic systems, power transmission systems, and articulated mechanisms. Spline shafts facilitate torque transmission, accommodate misalignments, and enable efficient power transfer in heavy-duty machinery.
6. Marine and Offshore:
Spline shafts have applications in the marine and offshore industry. They are used in propulsion systems, thrusters, rudders, winches, and marine pumps. Spline shafts enable torque transmission in marine vessels and offshore equipment, accommodating axial and radial movement, and ensuring reliable power transfer.
7. Energy and Power Generation:
Spline shafts are utilized in the energy and power generation sector. They are found in turbines, generators, compressors, and other rotating equipment. Spline shafts enable torque transmission and accommodate relative movement in power generation systems, ensuring efficient and reliable operation.
8. Rail and Transportation:
Spline shafts are employed in the rail and transportation industry. They are found in locomotives, railcar systems, and suspension mechanisms. Spline shafts enable torque transfer, accommodate movement and vibrations, and ensure precise control in rail and transportation applications.
These are just a few examples of the industries where spline shafts are typically used. Their versatility, torque transmission capabilities, and ability to accommodate relative movement make them vital components in various sectors that rely on efficient power transfer, flexibility, and precise control.
editor by CX 2024-05-09
China Best Sales Steel Metal Reduction Starter Shaft Spline Pinion Custom Precision Machine Wheel Transmission Planetary Sun Drive Spur Gear wholesaler
Product Description
Company Profile
Packing Details:
Neutral packing: Individual box for inner packing and carton for outer packing.
Special packing: As customer’s design and requirements.
FAQ
Q1. What are your packaging conditions?
A: Usually, we pack the goods in neutral boxes and brown cartons. If you have a legally registered patent, We will pack the goods in your brand box upon receipt of your authorization.
Q2. What are your terms of payment?
A: T/T is 30% of the deposit and 70% before delivery.Before you pay your balance, we will show you a photo of the produet and paekaging.
Q3. What are your delivery conditions?
A: EXW, FOB, CFR, CIF, DDU.
Q4. What is your delivery time?
A: It usually takes 15 to 30 days to receive your advance payment. The exact delivery time depends The items and quantities you ordered.
Q5, Can I produce according to the sample?
A: Yes, we can produce according to your sample or technical drawings. We can make molds and fixtures.
Q6. Will you test all the items before shipping?
A: Yes, we were 100% tested before delivery
Q7. How do you maintain a long-term relationship with our business?
A: 1. We maintain good quality and competitive prices to ensure that customers benefit;We respect every customer and regard them as our friends,No matter where they come from, we do business with them and make friends in good faith.
Analytical Approaches to Estimating Contact Pressures in Spline Couplings
A spline coupling is a type of mechanical connection between 2 rotating shafts. It consists of 2 parts – a coupler and a coupling. Both parts have teeth which engage and transfer loads. However, spline couplings are typically over-dimensioned, which makes them susceptible to fatigue and static behavior. Wear phenomena can also cause the coupling to fail. For this reason, proper spline coupling design is essential for achieving optimum performance.
Modeling a spline coupling
Spline couplings are becoming increasingly popular in the aerospace industry, but they operate in a slightly misaligned state, causing both vibrations and damage to the contact surfaces. To solve this problem, this article offers analytical approaches for estimating the contact pressures in a spline coupling. Specifically, this article compares analytical approaches with pure numerical approaches to demonstrate the benefits of an analytical approach.
To model a spline coupling, first you create the knowledge base for the spline coupling. The knowledge base includes a large number of possible specification values, which are related to each other. If you modify 1 specification, it may lead to a warning for violating another. To make the design valid, you must create a spline coupling model that meets the specified specification values.
After you have modeled the geometry, you must enter the contact pressures of the 2 spline couplings. Then, you need to determine the position of the pitch circle of the spline. In Figure 2, the centre of the male coupling is superposed to that of the female spline. Then, you need to make sure that the alignment meshing distance of the 2 splines is the same.
Once you have the data you need to create a spline coupling model, you can begin by entering the specifications for the interface design. Once you have this data, you need to choose whether to optimize the internal spline or the external spline. You’ll also need to specify the tooth friction coefficient, which is used to determine the stresses in the spline coupling model 20. You should also enter the pilot clearance, which is the clearance between the tip 186 of a tooth 32 on 1 spline and the feature on the mating spline.
After you have entered the desired specifications for the external spline, you can enter the parameters for the internal spline. For example, you can enter the outer diameter limit 154 of the major snap 54 and the minor snap 56 of the internal spline. The values of these parameters are displayed in color-coded boxes on the Spline Inputs and Configuration GUI screen 80. Once the parameters are entered, you’ll be presented with a geometric representation of the spline coupling model 20.
Creating a spline coupling model 20
The spline coupling model 20 is created by a product model software program 10. The software validates the spline coupling model against a knowledge base of configuration-dependent specification constraints and relationships. This report is then input to the ANSYS stress analyzer program. It lists the spline coupling model 20’s geometric configurations and specification values for each feature. The spline coupling model 20 is automatically recreated every time the configuration or performance specifications of the spline coupling model 20 are modified.
The spline coupling model 20 can be configured using the product model software program 10. A user specifies the axial length of the spline stack, which may be zero, or a fixed length. The user also enters a radial mating face 148, if any, and selects a pilot clearance specification value of 14.5 degrees or 30 degrees.
A user can then use the mouse 110 to modify the spline coupling model 20. The spline coupling knowledge base contains a large number of possible specification values and the spline coupling design rule. If the user tries to change a spline coupling model, the model will show a warning about a violation of another specification. In some cases, the modification may invalidate the design.
In the spline coupling model 20, the user enters additional performance requirement specifications. The user chooses the locations where maximum torque is transferred for the internal and external splines 38 and 40. The maximum torque transfer location is determined by the attachment configuration of the hardware to the shafts. Once this is selected, the user can click “Next” to save the model. A preview of the spline coupling model 20 is displayed.
The model 20 is a representation of a spline coupling. The spline specifications are entered in the order and arrangement as specified on the spline coupling model 20 GUI screen. Once the spline coupling specifications are entered, the product model software program 10 will incorporate them into the spline coupling model 20. This is the last step in spline coupling model creation.
Analysing a spline coupling model 20
An analysis of a spline coupling model consists of inputting its configuration and performance specifications. These specifications may be generated from another computer program. The product model software program 10 then uses its internal knowledge base of configuration dependent specification relationships and constraints to create a valid three-dimensional parametric model 20. This model contains information describing the number and types of spline teeth 32, snaps 34, and shoulder 36.
When you are analysing a spline coupling, the software program 10 will include default values for various specifications. The spline coupling model 20 comprises an internal spline 38 and an external spline 40. Each of the splines includes its own set of parameters, such as its depth, width, length, and radii. The external spline 40 will also contain its own set of parameters, such as its orientation.
Upon selecting these parameters, the software program will perform various analyses on the spline coupling model 20. The software program 10 calculates the nominal and maximal tooth bearing stresses and fatigue life of a spline coupling. It will also determine the difference in torsional windup between an internal and an external spline. The output file from the analysis will be a report file containing model configuration and specification data. The output file may also be used by other computer programs for further analysis.
Once these parameters are set, the user enters the design criteria for the spline coupling model 20. In this step, the user specifies the locations of maximum torque transfer for both the external and internal spline 38. The maximum torque transfer location depends on the configuration of the hardware attached to the shafts. The user may enter up to 4 different performance requirement specifications for each spline.
The results of the analysis show that there are 2 phases of spline coupling. The first phase shows a large increase in stress and vibration. The second phase shows a decline in both stress and vibration levels. The third stage shows a constant meshing force between 300N and 320N. This behavior continues for a longer period of time, until the final stage engages with the surface.
Misalignment of a spline coupling
A study aimed to investigate the position of the resultant contact force in a spline coupling engaging teeth under a steady torque and rotating misalignment. The study used numerical methods based on Finite Element Method (FEM) models. It produced numerical results for nominal conditions and parallel offset misalignment. The study considered 2 levels of misalignment – 0.02 mm and 0.08 mm – with different loading levels.
The results showed that the misalignment between the splines and rotors causes a change in the meshing force of the spline-rotor coupling system. Its dynamics is governed by the meshing force of splines. The meshing force of a misaligned spline coupling is related to the rotor-spline coupling system parameters, the transmitting torque, and the dynamic vibration displacement.
Despite the lack of precise measurements, the misalignment of splines is a common problem. This problem is compounded by the fact that splines usually feature backlash. This backlash is the result of the misaligned spline. The authors analyzed several splines, varying pitch diameters, and length/diameter ratios.
A spline coupling is a two-dimensional mechanical system, which has positive backlash. The spline coupling is comprised of a hub and shaft, and has tip-to-root clearances that are larger than the backlash. A form-clearance is sufficient to prevent tip-to-root fillet contact. The torque on the splines is transmitted via friction.
When a spline coupling is misaligned, a torque-biased thrust force is generated. In such a situation, the force can exceed the torque, causing the component to lose its alignment. The two-way transmission of torque and thrust is modeled analytically in the present study. The analytical approach provides solutions that can be integrated into the design process. So, the next time you are faced with a misaligned spline coupling problem, make sure to use an analytical approach!
In this study, the spline coupling is analyzed under nominal conditions without a parallel offset misalignment. The stiffness values obtained are the percentage difference between the nominal pitch diameter and load application diameter. Moreover, the maximum percentage difference in the measured pitch diameter is 1.60% under a torque of 5000 N*m. The other parameter, the pitch angle, is taken into consideration in the calculation.
