balanced feature statically balances the retaining ring. A series of slots, opposite the gap end, account for the missing material in the gap. This characteristic is very useful when the balance of the assembly is critical and it is necessary to reduce eccentric loading.
A balanced spiral retaining-ring, also known as a balanced circlip, is a type of spiral retaining ring that has been specifically designed to reduce the centrifugal forces that are exerted on the ring during operation. This is achieved by creating a symmetrical, or “balanced,” design that distributes the forces evenly around the ring.
Balanced spiral retaining-rings are typically used in applications where high speeds or heavy loads are present, such as in motors, gearboxes, and other high-performance mechanical systems. Because they are able to withstand these forces better than traditional spiral retaining rings, they can help extend the life of the mechanical system and reduce the risk of failure.
When choosing a balanced spiral retaining-ring, factors to consider include the diameter and width of the ring, the material it is made of, the load capacity, corrosion resistance, temperature range, and ease of installation. Additionally, it is important to consider the specific requirements of the application, such as the speed and load conditions that will be present and the compliance standards of the industry.
In general, balanced spiral retaining rings are more expensive than the standard ones, but they can offer significant advantages in terms of performance and reliability in certain applications.
Material purchased – Producing – First Testing – Coiling – Inspection – Heat Treatment – Cleaning – Surface Treatment – OQC – Packing – Shipping.
No gap; 360 retaining surface Economically produced in stainless steel because the coiling process produces no scrap No-Tooling-Charge on custom designs Easy installation and removal Used in the dynamic balance is demanding.
| Material | Carbon steel (SWC), 65Mn, cold-rolled steel, Stainless steel (SUS), Beryllium copper, Phosphor copper, Brass, Music wire, Piano wire (SWP), 60Si2Mn, 55CrSi, etc. |
| Finish | blacking, zinc/nickel/chrome/silver/gold plating/powder coating, spraying coated, electrophoresis, etc. |
| Certification | ISO 9001:2008, TS 16949 and ISO 14001 |
| Quality Grade | Optimal |
| Application | Electronic products, Children’s toys, Baby carriages, bicycles, Kitchen appliances, Cameras, Printers, Office equipment, Precision equipment, and various kinds of vehicles |
| Load Type | Compression, Torsion, Extension, Clip, Pin |
| Notes | 1. Please offer us your spring specs; we can make springs based on your requirements. 2. A discount is offered if the order quantity is large. |
Spiral retaining rings are different from traditional stamping retaining-rings; spiral circlips adopt a winding manufacturing process for precise diameter size. They have a uniform cross-section and are free of burrs. Spiral circlips meet military and aerospace industry specifications and are used in thousands of mechanical products worldwide.
Ordinary snap-type retaining-rings have ears on their structure, which cause interference with internal parts. The elastic spiral circlips made of stainless steel have a consistent cross-section without ears, so it will not interfere with matching parts after installation, and the cost of the retaining ring is lower than that of the cassette spiral circlips, The use of the retaining-ring can save the pillow block design, reduce the size of the shaft, save materials and processing time.
A wave retainign-ring is a removable spiral circlip with a wave shape. A wave retaining-ring can replace a retaining ring and a wave spring, which can apply pressure to the ball bearing in advance, and is also assembled in the groove like a normal spiral circlips.
The double-turn offset-type outer retaining-ring is used to replace the pillow block. It is used to hold the nozzle part and make it easy to assemble. The width of the spiral circlips is designed for zero interference, and its outer diameter is smaller than the diameter of the thread root. In the pressure gauge, the wave spiral circlips are installed in the shallow groove and only produce very little pressure on the surface glass. This retaining ring can not only fix the surface glass but will not crush the glass.
The retaining ring forms side walls on both sides of the synchronous pulley. This method eliminates the press-in side wall. In order to facilitate the replacement of the belt, the retaining-ring on one side adopts the easy-to-remove type. The wave spiral circlips are easy to meet the requirements of on-site maintenance. For example, when the hydraulic cylinder seal when the ring needs to be repaired, the spiral circlips can be quickly removed with a screwdriver and easily reinstalled.
The main features of balanced spiral retaining rings include:
1.1 What Are Retaining Rings?
Retaining-rings are circular or semi-circular fasteners that securely fit into a groove or channel on a shaft or inside a bore. These precision-engineered components create a retaining shoulder, preventing axial movement and ensuring the overall stability and security of mechanical assemblies.
1.2 Nomenclature and Terminology
Retaining rings are known by various names, such as snap rings, circlips, or C-rings. These terms are often used interchangeably, but they all refer to the same fundamental concept of a retaining fastener.
2.1 Internal Retaining-Rings
Internal retaining rings are designed to fit into a groove or channel within a bore, providing retention on the inside of the assembly. They are commonly used in applications where space constraints prevent the use of external retaining-rings.
2.2 External Retaining-Rings
External retaining-rings are designed to fit into a groove or channel on the outside of a shaft, providing retention from the exterior of the assembly. They are typically used when the components being retained are located on the outside of the bore.
2.3 Traditional Retaining-Rings
Traditional retaining rings are typically flat or straight-edged, offering a consistent level of retention. They are widely used in various industries, ranging from automotive to industrial machinery.
2.4 Beveled Retaining-Rings
Beveled retaining rings have a slight bevel or taper on one side, allowing for more precise retention. They are often used in applications where the retaining force needs to be evenly distributed.
2.5 E-Clips
E-clips, also known as wave or bowed E-rings, have a wave-like shape that offers a greater degree of flexibility and retention in certain applications. They can adapt to minor variations in groove dimensions.
3.1 Carbon Steel
Carbon steel retaining-rings are cost-effective and provide good corrosion resistance. They are commonly used in various industrial applications, especially when frequent maintenance is possible.
3.2 Stainless Steel
Stainless steel retaining rings offer excellent corrosion resistance, making them ideal for applications in harsh environments, such as marine, chemical, or food processing industries.
3.3 Beryllium Copper
Beryllium copper retaining-rings provide exceptional strength, electrical conductivity, and resistance to corrosion. They are often used in electrical and high-temperature applications.
3.4 Phosphor Bronze
Phosphor bronze retaining rings are known for their high resistance to wear and tear. They are typically used in applications where frequent assembly and disassembly are required.
Internal and external retaining-rings serve similar purposes, which is to secure components on a shaft or inside a bore, but they have distinct characteristics and applications:
Internal Retaining Rings:
External Retaining Rings:
When to Use Each Type:
The choice between internal and external retaining rings depends on the specific requirements and constraints of the application. Here are some considerations:
In summary, the choice between internal and external retaining rings depends on the specific application’s design and functional requirements, including space, load direction, accessibility, and environmental factors.
Determining the correct size of a retaining ring for a specific shaft or bore is essential to ensure proper functionality and safety. Here’s a general guideline on how to size a retaining ring:
1. Measure the Shaft or Bore:
2. Determine Groove Dimensions:
3. Check for Standards:
4. Select the Type of Retaining Ring:
5. Refer to Manufacturer Data:
6. Calculate Ring Size:
7. Double-Check Your Selection:
8. Perform a Mock Assembly:
It’s important to note that when in doubt or dealing with critical applications, consulting with a retaining ring manufacturer or an engineer with experience in fastener selection is advisable. They can provide expert guidance, taking into account factors such as material selection, groove design, and load requirements. Properly sized and installed retaining rings are crucial for the safe and reliable operation of your equipment.
Q: What is a retaining-ring?
A retaining ring, also known as a snap ring or circlip, is a fastener used to secure components on a shaft or inside a bore. It is designed to hold parts in place by snapping into a groove or recess, preventing them from moving axially.
Q: What are the common types of retaining rings?
There are two primary types of retaining-rings: internal and external. Internal retaining-rings fit inside a bore or housing, while external retaining-rings fit around a shaft. These can further be categorized into various styles, including snap rings, E-rings, C-rings, and more.
Q: What materials are retaining-rings typically made from?
Retaining rings are commonly made from materials such as spring steel, carbon steel, stainless steel, and sometimes plastics. The choice of material depends on the specific application’s requirements, including factors like corrosion resistance, load-bearing capacity, and environmental conditions.
Q: How are retaining rings installed and removed?
Retaining-rings are typically installed and removed using specialized tools, such as retaining-ring pliers. To install a retaining-ring, the ring is compressed to fit it into the groove, and when released, it expands to secure the components. To remove a retaining ring, it is compressed using pliers or a similar tool to allow for easy extraction.
Q: What are some common applications for retaining rings?
Retaining-rings are used in various applications where components need to be secured on a shaft or inside a bore. Some common applications include automotive transmissions, gearboxes, industrial machinery, appliances, and many other mechanical and engineering systems.
Q: What is the purpose of the grooves or recesses in which retaining-rings are installed?
The grooves or recesses, known as retaining-ring grooves, are machined features in the shaft or bore where the retaining ring is installed. They provide a secure location for the ring to snap into, preventing the axial movement of the components being retained.
Q: Can retaining-rings be reused?
In many cases, retaining rings can be reused, provided they are not damaged during removal. However, it’s essential to inspect them for signs of wear, deformation, or other issues that may compromise their effectiveness. If in doubt, it’s generally recommended to replace them with new ones for safety and reliability.
Q: Are there different sizing standards for retaining rings?
Yes, there are various international standards and sizing conventions for retaining-rings, including DIN (German), ANSI (American), and JIS (Japanese). These standards define the dimensions and specifications of retaining-rings to ensure compatibility with different applications and components.
Q: Can retaining-rings fail, and what are the consequences of failure?
Retaining rings can fail if they are damaged, worn, or not installed correctly. The consequences of failure can include components coming loose, leading to machinery malfunction, damage, or even safety hazards. Regular inspection and maintenance are essential to prevent such failures.
Q: Are there alternatives to retaining rings for securing components on shafts or in bores?
Yes, there are alternative methods for securing components, including set screws, pins, keyways, and threads. The choice of method depends on the specific application and the requirements for security, ease of assembly, and maintenance.
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