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  A spring is a mechanical component made of elastic material that deforms under external force and returns to its original shape once the force is removed. Its primary functions are to store and release energy, absorb shock, maintain force, or control motion.

  Common types of springs include compression springs, extension springs, torsion springs, bending springs, spring pins, spiral springs, retaining rings, die springs, internal and external tooth washers, and wave springs.

 An E Series external retaining(Shaft) , also known as a retaining ring , is a common mechanical fastener specifically used for bearing positioning and axial retention. It is typically made of spring steel or stainless steel and is installed into a groove on a shaft or in a bore through elastic deformation, thereby restricting the axial movement of components.

  An E Series external retaining(Shaft) is a Shaft Retaining Ring with a“E-Series” profile. It provides elasticity and self-locking capability, making it suitable for installation on shafts or in bores to prevent parts from slipping off. With a simple structure and ease of assembly and disassembly, it is widely used in precision machinery and tools.

A S Series external retaining(Shaft) , also known as a retaining ring , is a common mechanical fastener specifically used for bearing positioning and axial retention. It is typically made of spring steel or stainless steel and is installed into a groove on a shaft or in a bore through elastic deformation, thereby restricting the axial movement of components.

  A S Series external retaining(Shaft) is a Shaft Retaining Ring with a“S-Series” profile. It provides elasticity and self-locking capability, making it suitable for installation on shafts or in bores to prevent parts from slipping off. With a simple structure and ease of assembly and disassembly, it is widely used in precision machinery and tools.

Spring Pin (SPP Type Spring Pin) is a commonly used mechanical fastener. It is a cylindrical, thin-walled metal tube with a longitudinal slot, typically made of spring steel or stainless steel. During installation, the slot allows the pin to compress as it is inserted into a hole, and the restoring force of the material ensures a tight fit, providing positioning, fastening, or shear load-bearing functions.

  A die spring is a type of high-strength compression spring specifically designed for dies, stamping machinery, and heavy-load applications. Unlike ordinary compression springs, die springs are often made from rectangular or square wire, allowing them to withstand greater compressive loads within limited installation space. They also feature excellent fatigue resistance and high-temperature durability.

  Compression springs are widely used in automobiles, machinery, electronics, and everyday products. Choosing the right compression spring ensures product performance and durability. Below are the key factors to consider when selecting a compression spring:

1. Load and Force Requirements

• Determine the maximum load the spring must withstand under working conditions.

• Select an appropriate spring rate (spring constant) according to application needs.

2. Installation Space

• Measure the solid height (maximum compressed length) and free length.

• Ensure the spring will not be over-compressed or too loose within the available space.

3. Material Selection

• Carbon steel wire (SWP): High tensile strength, prone to rust, requires surface treatment.

• Stainless steel (SUS304): Corrosion-resistant, suitable for humid or special environments.

• Silicon-chrome alloy steel / special materials: Suitable for high-temperature or high-strength applications.

4. Shape and Design

• Cylindrical compression spring: Most common, provides uniform load distribution.

• Conical compression spring: Prevents spring stacking, improves stability.

• Barrel-shaped: Larger middle diameter with smaller ends, ideal for vibration absorption.

• Hourglass-shaped: Smaller middle diameter with larger ends, enhances stability in specific applications.

A compression spring is one of the most common types of springs, typically helical and made from coiled wire. Its primary function is to store energy when an external force is applied to shorten it, and to release the energy as it returns to its original shape once the force is removed.

1. Capable of manufacturing based on drawings or samples, ideal for machinery manufacturers, product development, and
    professional design projects.

2. A professional factory specializing in the production of various springs, including compression springs, extension springs,
    and torsion springs.

3. Nearly 50 years of manufacturing experience, ensuring fast delivery and excellent quality.

4. Equipped with complete production facilities and inspection instruments, with fully automated manufacturing processes.

5. Serving industries such as computer hardware, automotive, bicycles, motorcycles, electronics, electrical appliances,
    sporting goods, and aerospace.

Compression springs are one of the most common types of springs. Typically in a helical shape, they are designed to store energy when compressed and return to their original form upon release. Their primary functions include absorbing external forces, providing elastic force, and restoring components to their original position.

1.Provides return force: Used in mechanisms that require resetting, such as buttons, sliders, and valves.

2.Absorbs impact/vibration: Acts as a buffer to reduce wear and impact on components.

3.Stores energy: Stores potential energy during compression, which is released as kinetic energy when the spring expands.

4.Durable and elastically stable: Capable of enduring tens of thousands to millions of cycles, making them ideal for long-life applications.

  Compression springs are one of the most common types of springs and are mainly used to withstand compressive loads. When an external force is applied, the spring shortens, and once the load is removed, it returns to its original shape. They are usually coiled in a helical form, and both ends can be ground flat or formed into specific shapes as needed for easier installation or positioning.

  Compression springs are among the most widely used springs and belong to the category of helical springs designed to bear compressive forces. When compressed, they store energy and then automatically return to their original length after the load is released, providing a restoring force. Most compression springs are cylindrical, but conical (tapered) or variable pitch designs are also available for special applications.

  A torsion spring is a mechanical component that utilizes the elasticity of the material to generate torsional force. When both ends are twisted by an external force, the spring stores energy and produces a reactive torque, returning to its original position after the load is released. Torsion springs are widely used in products that require rotational force or positioning functions, such as automotive parts, home appliances, tools, electronic devices, and door hinges.

  We are a professional torsion spring manufacturer with many years of production experience and advanced automated equipment. We are capable of precisely manufacturing torsion springs that meet various specifications and performance requirements. From material selection, design and development, prototyping and testing, to mass production and delivery, we strictly control quality at every stage. We also respond quickly to customized demands, helping our customers improve product performance and enhance market competitiveness.

  A compression spring is a type of helical spring that stores energy when subjected to compressive force and returns to its original shape when the external force is removed. When pressure is applied, the spring compresses and generates a reactive force to resist the load. It is commonly used to absorb shock, support loads, or control movement.

1. Cylindrical compression spring: The most common type, with uniform outer and inner diameters throughout its length. Suitable for general applications.

2. Conical compression spring (tapered spring): The overall shape is conical, with a smaller diameter at the top and a larger diameter at the bottom. It can achieve a lower solid height when compressed, making it ideal for applications where space savings are required.

3. Variable pitch compression spring: The coil spacing is uneven, providing a progressive load-deflection curve. Commonly used in applications that require cushioning or multi-stage stiffness.

4. Barrel-shaped (olive-shaped) compression spring: A type of compression spring with an overall olive or barrel-shaped profile.

  JS Metal offers a wide variety of external and internal retaining rings, including C-type, E-type, R-type, S-type, IS-type, and IR-type rings. With a full range of specifications and stable quality, our products are widely used in the automotive, machinery, electronics, and hardware industries.

  We maintain a large inventory for prompt delivery, supporting both retail and bulk orders. Custom manufacturing based on drawings is also available. Inquiries are welcome!

  External Tooth Lock Washer, also known as an external tooth washer, is a type of locking washer featuring serrated teeth around its outer edge. It is primarily used to increase friction between screws or nuts and the mating surface, preventing loosening.

1. The outer edge of the washer is equipped with multiple outward-extending serrated teeth that bite into the surface of the fastened material upon installation, enhancing anti-slip and locking effects.

2. The external tooth design provides a larger contact area with the mating surface, increasing friction and assisting in conductivity requirements.

3. Common materials include carbon steel, stainless steel, and phosphor bronze.

4. Surface treatments such as zinc plating, nickel plating, and black oxide are applied to improve corrosion resistance and durability.

5. Widely used in electronic devices, electrical components, automotive parts, and mechanical assemblies.

6. Particularly suitable for applications requiring good conductivity and resistance to vibration-induced loosening.

  Internal Tooth Lock Washer, also known as an internal tooth washer, is a type of washer with inward-facing serrations. It is primarily used to increase friction between the screw or nut and the mating surface, thereby preventing loosening.

1. The inner edge of the washer features serrated internal teeth, which bite into the contact surface upon installation to provide an anti-slip effect.

2. Commonly used with screws that have larger heads or in applications where space is limited.

3. The teeth extend inward and are not exposed, making them suitable for applications where appearance or safety is a concern.

4. Common materials include carbon steel, stainless steel, and phosphor bronze.

5. Surface treatments such as zinc plating, nickel plating, and black oxide are often applied to enhance corrosion resistance and durability.

6. Widely used in electronics, electrical devices, automotive components, and mechanical assemblies.

7. Particularly suitable for environments with frequent vibration or where a secure and stable connection is required.