schrauben und draht fasteners Germany schrauben und draht models schrauben und draht prices

schrauben und draht fasteners: Locking washers are a type of fastener with a flat, ring-like shape. Placed between the bearing surface of a bolt, screw, or nut and the surface of the connected part, they increase the contact surface area of the connected parts, reduce pressure per unit area, and protect the surfaces of the connected parts from damage. Another type, elastic washers, also prevents nuts from loosening. The locking washer consists of two pieces; its unique embedded structure changes the traditional method of achieving locking primarily through friction, instead adopting the world's most advanced locking technology, utilizing tension between the two washers to achieve the dual effect of locking and tightening. It prevents loosening caused by vibration and dynamic loads, is easy to disassemble, and the loosening torque is greater than the tightening torque; the locking effect is not affected by lubrication, and increased lubrication improves the locking effect; it has the same temperature characteristics as standard bolts/nuts; and can be reused a limited number of times.

schrauben und draht fastener functions

Locking washers bring convenience to the mechanical industry, as they can prevent thread loosening. There are many varieties of locking washers, including butterfly washers, saddle washers, spring washers, wave spring washers, etc., collectively known as locking washers. These types of locking washers all rely on increasing static friction to achieve the locking effect. Under conditions of low vibration, light load, and uniform speed, the locking effect can meet enterprise needs. However, under strong vibration, high load, and rapid motion conditions, they cannot achieve complete locking, only prolonging the time for nuts and bolts to loosen on their own, breaking away from the previous method of using increased "preload" and enhanced "friction" to achieve locking. The latest locking principle is used not only in washers but also in nuts and bolts, thereby solving the problem of fastener loosening in heavy industry enterprises and eliminating the need to refer to input and output torques during installation.

schrauben und draht fastener installation requirements

Locking washers are characterized by simple installation. Simply place the two washers with their inner inclined tooth surfaces facing each other between the nut and the connected material. After the nut is tightened, the outer radial cam surface of the locking washer bites into the contact surfaces at both ends, and the angle of the inner inclined tooth surface is greater than the thread angle of the bolt. When the bolt is elongated due to mechanical vibration, the nut will rotate and loosen. Since the friction on the outer radial cam surface of the locking washer is greater than the friction between the inner inclined tooth surfaces, in this state, only relative movement between the inner inclined tooth surfaces is allowed, generating a certain lifting tension; When the bolt contracts, the inclined tooth surfaces of the washer return the nut to its original position. Thus achieving 110% locking and tightening effects; the washer is suitable for relatively flat and smooth surfaces; If the connected material is non-metallic, a metal plate can be fixed to the connected material, allowing the use of locking washers.

schrauben und draht fastener applications

Due to different environments, the material requirements for locking washers vary. They are characterized by a wide variety of specifications, diverse performance and uses, and a high degree of standardization, serialization, and generalization. Some people refer to locking washers that already have national standards as standard fasteners or simply standard parts. Stainless steel locking washers have inherent corrosion resistance; when the surface is damaged, a thin oxide layer forms on the metal surface to prevent further rusting. Typically, this series of actions—blocking, shearing, adhesion, and seizing—occurs within just a few seconds, so correct understanding and use of these fasteners is necessary to prevent this phenomenon. Locking washers are suitable for equipment subject to frequent vibration, such as: automotive industry, compressors, construction, wind power equipment, agricultural machinery, casting industry, drilling equipment, shipbuilding industry, mining equipment, oil drilling rigs (onshore or offshore), public utilities, rail transit, transmission systems, and metallurgical equipment.

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