Andy Lu

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About Andy Lu

SHANGHAI HEGONG DISC SPRING MANUFACTURE CO.,LTD. (Hereafter called “HEGONG SPRING ®”) is a leading manufacturer in China specializing in designing and manufacturing of disc springs, disc spring washers, wave springs and various elastic elements. As leading company in the industry, HEGONG SPRING ® participated in drafting the standards of GB/T 1972-2005 (national standard for disc springs), JB/T 13296-2017(Wave Springs), JB/T 11698-2013 (Volute Springs) and JB/T 6655-2013 (High temperature resistant cylindrical compression springs).

Your Ultimate Guide to Belleville Washers

Andy Lu07 May, 2024Business

Belleville washers serve the purpose of preventing fasteners from loosening due to vibration, absorbing shock, and maintaining joint integrity. These conical washers find widespread use across various industries including automotive, energy, distribution, chemical, pump and valve manufacturing, industrial automation, utility transmission, and more. Specifically designed for high-temperature environments and highly corrosive settings, American Belleville washers excel in ensuring top-notch quality. They are engineered to counteract relaxation effects, address thermal expansion concerns, and prevent bolt yield.

How Do You Stack Disc Springs?

Andy Lu07 May, 2024Business

Single disc springs are assembled ‘opposed to each other’ to form a spring column. This ‘in series’ formation (no.3 in above illustration) is a means of multiplying the deflection of a single disc spring, the force element remains as that for a single spring. E.G. A disc spring that requires a force of 5000N to deflect 1mm, when assembled to form a column of 10 disc springs in series, will require a force of 5000N to deflect 10mm.

Unlocking the Purpose of Stacking Belleville Disc Springs

Andy Lu07 May, 2024Business

In the realm of mechanical engineering, the innovation and versatility of Belleville disc springs have garnered substantial attention. These ingenious components, also known as conical spring washers, have a wide array of applications that cater to industries ranging from aerospace to automotive. One intriguing facet of these springs is their ability to be stacked – a technique that amplifies their utility and flexibility. In this comprehensive exploration, we delve into the purpose behind stacking Belleville disc springs, uncovering the advantages, applications, and considerations that underscore this technique's significance in modern engineering.

Serrated Safety Washers

Andy Lu05 May, 2023Business

Serrated Safety Washer is a kind of Belleville Disc Spring with trapezoid cross section and serrations on both sides. Serrated Safety Washers are connected with bolt or screw, it can prevent bolt relaxation after vibration by increasing the friction resistance. Serrated safety washers are available in two different types: S type is suitable for normal duty, available for screw sizes: M1.6 to M36. VS type is thicker and therefore achieves higher pretensioning loads, be used with high strength bolts, available for screw sizes: M5 to M36.

Disc Springs for Ball Bearing

Andy Lu05 May, 2023Business

Disc Springs for Ball Bearing, also be known as “Bearing Preload Disc Springs”, they are assembled with the radial ball bearings, act as a compensator of thermal expansions during their working. Using Disc Springs to preload radial ball bearings, helps to maintain positioning accuracy, eliminate shaft end play, and minimize vibration and shaft deflection by distributing the load evenly around the bearing race, extends the bearing life, eliminate excessive running noise. In most cases, the outer race of the ball bearing is preloaded with the Disc Spring, and in some cases it is desirable to preload the inner race of ball bearing.

Disc Springs for Valves

Andy Lu05 May, 2023Business

Disc Springs for Valves, also be known as Belleville Springs for Valves, Belleville Washers for Valves ... Disc springs are widely used in various types of valves such as Ball Valves, Regulating Valves, Globe Valves, Pigging Valves, and Sea Valves. The load of Disc Springs is large with small deflection, they can provide sufficient valve seat sealing force.

stacks belleville

Andy Lu16 Sep, 2021Business

Disc spring can be used in a single piece, as well in multi pieces with different combinations. It is usual to use disc spring stacks with various combinations to meet your specified applications.The designed & expected load/deflection characteristics of disc springs stack just be reached under the correct installation. A guiding element is necessary to keep the disc springs stack in position. This should preferably be a mandrel. HEGONG SPRING® can deliver disc springs stack pre-assembled on a guiding element and highly recommend this way.

High Temperature Cryogenic Bearing Preload Disc Springs

Andy Lu16 Sep, 2021Business

HEGONG SPRING ® is established in 2000, also a member of SHANGHAI HEWEI GROUP which is state-owned enterprise, with headquarter in Shanghai. Specialize in Designing & Manufacturing of Various Standard & Custom springs with high quality, including Belleville Springs (DIN2093 Disc Springs), Belleville Washers DIN6796, Wave Springs , Corrosion Resistant Disc Springs, High Temperature/Cryogenic Disc Springs, Disc Springs for Ball Bearing, Disc Springs for Valves, Flange Bloting Washers, Serrated Safety Washers, U-Shaped springs for elevator safety gear, Volute Springs, High temperature resistant cylindrical compression springs and other elastic elements. Certified by ISO 9001:2015 and IATF 16949:2016.