DIN2093 Disc Spring Washer

Disc Spring Washers Product Describsion

Disc spring washers are Boltead’s main product. We are a manufacturer of disc spring washers and also a supplier of disc spring washers. While producing and supplying lat washers, we also produce bolts, nuts and other fastener products used in conjunction with them.

The disc spring washers  we produce are generally classified according to whether the material is carbon steel or stainless steel. More specific classifications are as follows:

There are three common classification methods for washer grades.
Washers can generally be classified according to material, such as carbon steel washers and stainless steel washers.
There are also classifications based on use, shape and size, such as Class A, Class C, etc.
In addition, some washers have strength levels, such as spring washers, which are divided into levels 4.8, 8.8, etc.

In addition to different materials and strengths, the biggest impact on disc spring washers is surface treatment. The following are the more common surface treatments for disc spring washers: black oxide, black zinc, zinc plated (ZP), color zinc plating (CZP /YZP), hot dip galvanized (HDG), dacromet coating, etc.

Disc Spring Washers Production Process

disc spring washers are sent from the raw material line to the final product. They generally go through the following process:
Annealing of raw materials – pickling – drawing – forming – grinding – heat treatment – surface treatment – classification – packaging – shipping

The rough schematic diagram is as follows:

Disc Spring Washers Application fields

• Disc spring washers, also known as Belleville washers, are commonly used in heavy-duty bolted connections and assemblies to provide high-spring force in a small space, ensuring reliable load distribution and vibration damping in various industrial applications.
• These washers find extensive use in the construction of machinery and equipment, including presses, stamping machines, and heavy-duty gear assemblies, where they are employed to maintain proper preloading and mitigate the effects of dynamic loads and thermal fluctuations.
• Disc spring washers are also used in automotive and truck manufacturing for applications such as axle assemblies, transmission systems, and engine components, providing a compact and efficient method for managing bolted joint dynamics in vehicle structures and drivetrains.
• They are utilized in oil and gas equipment to secure flange connections, valves, and wellhead components, offering reliable load retention and sealing in critical high-pressure and high-temperature environments.
• In power generation facilities, including nuclear, fossil fuel, and renewable energy plants, disc spring washers are employed in steam turbines, generators, and other rotating equipment to maintain bolt preload, manage vibration, and ensure operational reliability.
• Disc spring washers find application in aerospace and defense technologies, providing essential support in aircraft landing gear, missile systems, and satellite deployments, where they contribute to the integrity of fastener assemblies in complex and demanding aerospace applications.
• Additionally, these washers are employed in marine and offshore equipment, mining machinery, and various heavy industrial settings where controlling bolt tension, mitigating vibration, and managing thermal expansion are crucial for the performance and safety of critical equipment and structures.