DIN 25201 Carbon Steel Double Stacked Self-Locking Washers Characteristics Principles Industrial Solutions

Principle of DIN25201 double stack self-locking washers

DIN25201 double stack self-locking washer is a unique washer for connecting fasteners, which adopts a double-layer design to provide a more reliable connection in a vibration environment. These washers are commonly used in automotive, mechanical equipment, and engineering fields.DIN25201 Double Stack Self-Locking Washers Characteristics and Applications, Unique Washers The inner beveled tooth surface of the washer is inclined at an angle α that is greater than the angle of inclination of the bolt β. When assembled, the inner beveled tooth surface is relative, the friction coefficient of the outer radial convex surface of the washer (outer knurled tooth surface) is larger than the friction coefficient of the inner beveled tooth surface, and the contact surfaces with the two ends of the occlusal state. In the event of vibration of the connection and a tendency for the bolt to loosen, the two inner teeth of the washer are only allowed to lift relative to each other, creating a lifting tension. The unique tooth system utilizes tension to create a high resistance to vibration forces in the tightened joint, resulting in a 100% locking effect. An environmentally friendly Dacromet coating protects DIN25201 carbon steel washers! The Juxin Fasteners test laboratory has proven by the ISO9227 salt spray test standard and alternating climatic tests that the washers can withstand at least a minimum of 1.5 years of vibration using the Zinc-Ette and Delta coatings. Zincite and Delta-coated gaskets can withstand at least 1000 hours of neutral salt spray testing! Carbon steel Dacromet double stack self-locking washers DIN25201.

Primary material: S60C.35CrMo.51CrV4 or other special alloy steel customized material.

Surface treatment: spring steel hardening phosphating black, mechanical zinc plating, nickel plating, Dacromet coating treatment

Common specifications: M3, M3.5, M4, M5, M6, M8, M10, M12, M14, M16, M18.

DIN25201 double stack self-locking washers have what characteristics?

Double-stack self-locking washers are designed to prevent fasteners from loosening due to vibration or other external forces. These washers have a unique design that includes two separate locking elements that work together to create a stronger connection between the fastener and the fastening surface. Ensure that the clamping force of the joint is maintained despite strong vibrations, superior to fasteners that rely on friction for locking; Prevent loosening of bolts due to vibrations so that problems associated with loosening of fasteners will no longer occur; Easy to install and dismantle without the need for exceptional mounting work; This fastening system can be used to lock the fixed elements with a high or low pre-loading force; Unaffected by the original tightening force! SealThe locking function is not affected by lubrication temperature changes, which will not make the connection loose; it is durable and reusable.DIN25201 carbon steel double stack self-locking washers using the current advanced anti-corrosion coating process zinc-aluminum coating Dacromet surface treatment + three-coated three drying + organic surface coating surface curing, is now the world's generally recognized new metal surface external reasoning technology. This technology has been applied to wind power, photovoltaic power systems, communication systems, the automotive industry, railroad systems, petrochemical equipment, the shipbuilding industry, construction program machinery, and other fields. Excellent anti-corrosion performance! Dacromet is a flaky zinc-based chromium salt protective coating. The coating involves zinc flake and chromic acid and adding an aqueous agent formulated into a mixed solution, coated in the metal surface, and sintered at 300 ℃ to form a protective layer. Its most important feature is its resistance to saltwater corrosion, strong adhesion, mechanical strength, and good wear-resistant hardness performance. The closed layer is a heavy anti-corrosion composite coating, is a special sealant dip coating, spraying, brushing to the surface of the workpiece, by 180 ℃ -200 ℃ sintering protection morning. Both are super anticorrosive but also have a specific surface hardness. Germany Delta Dacromet coated down the surface of the external technology, entirely environmentally friendly, ultra-long salt dew corrosion-resistant parts, DELTA-MK zinc flake coating technology combined with robust and anti-mechanical stress, anti-wear parts, high-temperature resistance, and other characteristics. After repeated tightening with the bolt assembly, the coating on the product's surface still has no significant change! And additional Dacromet coatings, after repeated tightening assembly loosening, are shedding their surface coating seriously.

1. Manufacturing process: DIN25201 standard washers all use S60C/SK5 and special alloy steel materials. After full hardening treatment HRC45-52, they have a hardness level of 14.9! Surface treatment using Germany Delken Dacromet does not contain Cr 6, so there will not be any hazardous hydrogen embrittlement situation. Applicable environment: The gasket can be applied to a 400-degree high temperature and a -60-degree low-temperature environment!

2. Double-stacked self-locking washers are used: washers are two large oblique tooth surfaces bonded in pairs. The purpose is to facilitate the installation and prevent the wrong use! The hardness of the washer must be higher than the hardness of the bolt! LOCK washers are all DIN65151 transverse vibration tests that can be up to 2 million tests, with an attenuation rate of not less than 70%! DIN25201 double-stacked self-locking washers connect the fasteners of a special washer, which adopts a double-layer design to provide a more reliable connection in the vibration environment. This washer is commonly used in automotive, mechanical equipment, and other engineering applications. In the following, we will focus on the features and applications of DIN25201 double-stack self-locking washers.

3. Self-locking function: DIN25201 double stack self-locking washers have a good self-locking function; the two locking elements are designed with internal teeth that bite into the fastener surface and fastening material. This helps to create a safer connection and can effectively prevent fasteners from loosening in vibrating environments, increasing the reliability of the connection.

4. Double Layer Design: DIN25201 Double Stack Self-Locking Washers consist of two shrapnel layers with two separate locking elements stacked on each other. This creates a more robust locking mechanism that is less likely to loosen under external forces. The upper and lower shims act as springs and washers, respectively, providing better cushioning and sealing.

5. Easy to install: DIN25201 double stack self-locking washers are very easy to install; they can be used with various tools, including wrenches and pliers. Just install them on the fastener or in the threaded holes.

6. Durable: DIN25201 double-stack self-locking washers are manufactured from high-quality materials. Double-stack self-locking washers are usually made from high-quality materials like stainless or galvanized steel. This ensures that they are durable and corrosion-resistant. They have good resistance to corrosion and abrasion and can operate stably for a long time.

7. Widely used: DIN25201 double stack self-locking washers are widely used in automotive, machinery and equipment, aerospace, and other fields; in a variety of harsh environments play an essential role, double stack self-locking washers are available in a variety of sizes to suit different types of fasteners and applications.

 DIN25201 double stack self-locking washers industrial application solutions

DIN25201 double stack self-locking washers are suitable for many fields due to their unique design and function, mainly including the following aspects:

1. Automotive engineering: Automotive is one of the critical application areas for DIN25201 double-stack self-locking washers. The washers can provide a more reliable fastening effect in connecting various components in automobiles, effectively preventing loosening caused by vibration.

2. Machinery and equipment: The connection of various fasteners is crucial in machinery and equipment. DIN25201 double-stack self-locking washers can increase the connection's reliability and improve the equipment's stability and safety.

3. Aerospace: Aerospace is an area where connection reliability is exceptionally high, and the self-locking function and high durability of DIN25201 double-stack self-locking washers make them the ideal choice to ensure the robustness of the connection.

4. Other fields: In addition to the above fields, DIN25201 double-stacked self-locking washers are also suitable for the petrochemical industry, electric power equipment, electronic instruments, and other engineering fields to ensure a strong connection and reduce equipment failure.

DIN25201 double stacked self-locking washers use of precautions and solutions

When using DIN25201 double-stacked self-locking washers, you need to pay attention to the following issues:

1. Installation position: It is essential to select and install DIN25201 double-stack self-locking washers correctly. They must be placed on the fastener or installed in the threaded hole to ensure that the washer's sealing and self-locking function is fully realized.

2. Selection of washers: Select the suitable DIN25201 double stack self-locking washers according to the actual needs, including size, material, and other considerations. Different engineering fields may have different needs and must be selected for specific situations.

3. Maintenance of washers: regularly check the status of DIN25201 double stack self-locking gaskets to ensure their regular operation. If the gasket is broken, deformed, etc., it should be replaced in time not to affect the connection's reliability.

Stainless steel double stacked self-locking washers DIN25201 double-sided teeth shockproof anti-slip washer solution

Stainless steel double stacked self-locking washers DIN25201 all use SUS304.316 or the corresponding grade of A2.A4 stainless steel, hardened surface hardness in the HV350-520 between the degree of a hardening layer of 20MU, hardness level 10! Washers can be applied to 800-degree high temperature and -160-degree low-temperature environments!

Name: Stainless steel double stacked self-locking washers DIN92501

Main material: SUS304.316 (A2.A4) and other special stainless steel customized materials

Surface treatment: stainless steel surface hardening (HV350-550)

Common specifications: M3, M3.5, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M39, M42, M45, M48, M52.

Stainless steel double stacked self-locking washers DIN25201 anti-loosening washers features solution

1, to ensure that the strong vibration still maintains the clamping force of the connecting parts, better than relying on friction to lock the washer fasteners

Two 、Prevent the bolt loosening caused by vibration, no longer occurring due to the fastener loosening caused by the related locking safety issues

3, back without special installation work, not affected by the original installation torque, easy to install and dismantle

Four 、Locking function is not affected by lubrication

5. Will changes in humidity not make the connectors loose

6, back to have durability; can be reused

7、Simple to use, safe, stable, reliable, and economical

Stainless steel double stacked self-locking washers DIN25201 anti-loosening washers principle solution

Stainless steel double-stacked self-locking DIN25201 anti-loosening washers by DIN25201 standard have a wedge-type locking function. The angle of the large serrations of the two washers is greater than the angle of the bolt thread. In addition, there are small radial serrations on the other side of the washers. The washers are mounted in pairs with large teeth opposite each other.

When the bolt and nut are tightened, the radial serrations bite tightly into the contact surfaces, holding the washers in place and allowing only relative movement between the large tooth surfaces. This wedge locking of the large serrations prevents the bolt/nut from loosening.

Here, you can see what happens when a bolt is removed with a wrench. The lift distance between the two pieces of the washer is greater than that of the bolt/nut caused by thread slippage. The washers are effective in locking fasteners in any dynamic load load.

Stainless steel double stacked self-locking washers DIN25201 product material

Stainless steel double-stacked self-locking washers from SUS304/A2/EN1.4401 and SUS316L/A4/EN1.4404 equivalent or 254smo super stainless steel, etc., in addition to providing general material washers can also be customized according to the requirements of the special steel washer. DIN25201 double-stacked self-locking washers are a self-locking function of the joints; double self-locking washers are in a series of applications. Double-stack self-locking washers are a reliable and effective solution for preventing fastener loosening in many applications. It suits various applications, including automotive, machinery and equipment, and aerospace. Its unique double-layer design and high-quality materials provide excellent durability and reliability. However, use requires attention to the correct installation position, selection, and regular maintenance. DIN25201 double-stack self-locking washers can ensure the connection's firmness and improve the equipment's stability and safety.

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