Shanghai Hegong Disc Spring Manufacture Co.,Ltd.

Shanghai Hegong Disc Spring Manufacture Co.,Ltd.

Company Product

  • Belleville Disc Springs
  • Belleville Disc Springs

    Belleville Disc Springs also was called "Disc Springs" "Conical Disc Springs", include disc spring stacks, Corrosion Resistant Disc Springs, High Temperature / Cryogenic Disc Springs, Disc Springs for Ball Bearing, Disc Springs for Valves. Disc Springs are widely used in petrochemical, electric power, metallurgy, engineering, machine tools, national defense, and other industries.

    Bearing Preload Disc Springs manufacturer Description

    The Disc Spring concept was first invented by a Frenchman Louis Belleville in 1865. So, disc spring is commonly known as Belleville Springs. And sometimes it also was called "Conical disc springs" "Belleville Disc Springs" or "Belleville Washers".

    Hegong Disc Springs are conically washers and have a rectangular cross-section, which is loaded in the axial direction. It has a small volume and large energy storage compared to traditional helical springs and can be used as a single disc spring or in the stack (stack in parallel, in series or parallel & series combination).

    The standards for disc springs mainly include DIN2092 (Calculation) / DIN2093 ( Quality Specifications-Dimensions ) of Germany, JIS B 2706- Japan, GB/T 1972-2005 of China and ISO 19690 : 2017 ( HEGONG SPRING ® is the drafting team member for international standard ISO 19690 : 2017 and Chinese national standard GB/T 1972-2005 ). Among them, DIN2093 is most widely used in the world.

    belleville washer design are designed & manufactured according to DIN2092 & DIN2093, working for dynamic or static applications. The engineers of HEGONG SPRING® are pleased to design the springs for the specific applications together with the customer’s R&D department. Be free to contact with our engineers. Tech@.

    Generally, disc springs include disc spring stacks, Corrosion Resistant Disc Springs, High Temperature / Cryogenic Disc Springs, Disc Springs for Ball Bearing, Disc Springs for Valves.

    Surface Condition And Corrosion Protection:

    Polish

    Phosphating and oil

    Mechanical Zinc Plating

    Chemical Nickel Plating

    Docromet / Geomet Coating

    Electrophoresis

    Tolerance:

    The Tolerance is according to DIN2093 standards

    Belleville Spring Washers exporter Specification:

    The following specification table covers the "standard" sizes and some non-standard sizes. HEGONG SPRING ® customizes Belleville Disc Springs as well. The max OD is up to 1000mm. If you require the custom Belleville Disc Springs, please contact our sales engineers.

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  •  Disc Spring Stacks
  • Disc Spring Stacks

    Disc spring can be used in a single piece, as well in multi pieces with different combinations. disc springs stack set is usual to use disc spring stacks with various combinations to meet your specified applications.

    Description

    The required various load/deflection characteristics of Belleville disc springs China can be obtained from the various stacking combinations. The stack combination methods and load&deflection relation as the table below.

    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 Hegong 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.

    Advantages of wholesale disc springs stack:

    1. Provide specific load/deflection data for the whole set of disc springs stack. (HEGONG SPRING®’s load testing machines can measure loads up to 4000KN)
    2. Small load tolerance
    3. Easier to install

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  • Corrosion Resistant Disc Springs
  • Corrosion Resistant Disc Springs

    Corrosion Resistant Disc Springs, made of stainless steel, such as SUS301, SUS302, SUS316, 17-4PH, 17-7PH, 15-7Mo, their resistant to corrosion is higher than general Disc Springs made of spring steel, so they also be known as "Stainless Steel Disc Springs". Stainless Steel Disc Springs are also widely used in National Defense, Metallurgy, Petrochemical, Wind Power, Engineering, Food Processing Equipment, etc. 

    In addition to Stainless Steel Disc Springs , High Temperature Disc SpringsCryogenic Disc Springs are suitable for high temperature or Cryogenic applications, you can choose according to the application requirement.

    Corrosion Resistant Disc springs manufacturer are designed & manufactured according to DIN2092 & DIN2093, GB/T 1972-2005, and ISO 19690. The engineers of HEGONG SPRING ® are pleased to design the springs for the specific applications together with the customer’s R&D department. Be free to contact with our engineers.

    Cryogenic Disc Springs Material:

    301

    SUS301 is corrosion resistant material. The strength of such material is obtained by cold rolling, so maximum material thickness is 3mm. Cold rolling will also give the spring some magnetic properties. Situation for SUS301 is soft, Half hard, 3/4 hardness, and full hard.

    304

    SUS304 is corrosion resistant material. The content of C% is lower than SUS301, low hardness, non-magnetic, good elasticity, and good cold processing effect. Its Corrosion resistance is better than SUS301. And maximum material thickness is 3mm.

    316

    SUS316 is corrosion resistant material. Because of Mo%, the corrosion resistance of SUS316 is better than SUS304. But tensile strength is lower than SUS301 and SUS304. Because of High Ni %, the corrosion and temperature resistance of SUS316L is better than SUS316. And maximum material thickness is 3mm.

    17-4PH

    17-4PH is a martensitic precipitation hardening stainless steel. Because the strength can be obtained by aging treatment, so its material thickness can reach 3mm and above. It can work under- 200 degrees.

     

    17-7PH

    17-7PH is austenitic-martensitic precipitation hardening stainless steel. The strength of such material is obtained by work hardening and precipitation hardening. Its Corrosion resistance is higher than 17-4PH. And its material thickness can reach 3mm and above.

    15-7PH

    15-7PH is precipitation hardening stainless steel. Because of Mo%, its corrosion resistance is better than 17-7PH. However, Corrosion resistance of such precipitation-hardening stainless steels, such as 17-4PH, 17-7PH, and 15-7PH is worse than austenitic material such as SUS301, 304, and 316. But its thickness can reach 3mm and above.

    Surface Condition And Corrosion Protection:

    Common surface treatment for Hegong Corrosion Resistant Disc Springs is Polish.

    Tolerance:

    Learn more about Tolerance

    The Tolerance is according to DIN2093 standards

    Specification:

    HEGONG® Corrosion Resistant Disc Springs outer diameter from 6mm up to 600mm and thickness from up to 24mm;

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  • High Temperature Disc Springs
  •  High Temperature Disc Springs

    High Temperature Disc Springs made of high temperature(Cryogenic) resistant material as Inconel 718 , 750 , Nimonic 90 , these disc springs are applied for high temperature&cryogenic(from -50°C up to +500°C) environment and ultra-high temperature&cryogenic(from -250°C up to +700°C) environment. High Temperature Disc Springs (Cryogenic Disc Springs) are widely used in Valves, Heat Exchangers, Boilers, Industrial Furnaces & Ovens, Cryogenic Technology, Special Chemical circumstances, etc.

    Hegong High Temperature Disc Springs are designed & manufactured according to DIN2092 & DIN2093, GB/T 1972-2005, and ISO 19690. The engineers of HEGONG SPRING ® are pleased to design the springs for the specific applications together with the customer’s R&D department. Be free to contact with our engineers.

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  • Cryogenic Disc Springs
  •  Cryogenic Disc Springs

    Cryogenic Disc Springs made of Cryogenic(high temperature) resistant material as Inconel 718 , 750 , Nimonic 90 , these disc springs are applied for high temperature&cryogenic(from -50°C up to +500°C) environment and ultra-high temperature&cryogenic(from -250°C up to +700°C) environment. Cryogenic Disc Springs(High Temperature Disc Springs) are widely used in Valves, Heat Exchangers, Boilers, Industrial Furnaces & Ovens, Cryogenic Technology, Special Chemical circumstances, etc.

    HEGONG Cryogenic Disc Springs are designed & manufactured according to DIN2092 & DIN2093, GB/T 1972-2005, and ISO 19690. The engineers of HEGONG SPRING ® are pleased to design the springs for the specific applications together with the customer’s R&D department. Be free to contact with our engineers

    Material:

    The common material for wholesale Cryogenic Disc Springs include: 30W4CrVA, H13, X22CrMoV12-1, CuBe2, Inconel 718, Inconel 750, Nimonic 90.

    Surface Condition And Corrosion Protection:

    Common surface treatment for Corrosion Resistant Disc Springs is Polish, Electrophoresis.

    Tolerance:

    The Tolerance is according to DIN2093 standards

    Specification:

    HEGONG SPRING ® Cryogenic Disc Springs outer diameter from 6mm up to 600mm and thickness from up to 24mm;

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  • Disc Springs for Ball Bearing
  • Disc Springs for Ball Bearing

    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. 

    The recommended load value is achieved when the disc spring is deflected to 75% of the initial cone heights (ho). The proper designed ho/t ratio makes a load of disc spring remains nearly constant for a large deflection range. 

    Disc springs for valves are designed to operate within 20%-80% of their total deflection. Misuse can result in overload, bigger error, or premature fatigue failure. If your working environment requires disc springs to work outside this range, HEGONG SPRING ® engineers can provide guidance or recommend other solutions. Be free to contact with our engineers Tech@.

    In case use disc springs stack set supplier, it is noting that the ho/t ratio in excess of could cause disc springs to invert and collapse.

    OD of Disc Springs for Ball Bearing is – 358mm ()

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  • Disc Springs for Valves
  • Disc Springs for Valves

    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.

    The role of the Disc Spring inside the valve is to maintain sufficient contact pressure on the joint. Using  Hegong Disc Springs Stacks either in series or parallel, obtain the required force and stroke, to meet the needs of each valve. Disc Springs Stacks apply a pressure and absorb the contraction and expansion that may occur due to pressure, temperature, or relaxation.

    Depending on the working environment, Belleville Springs for Valves can be produced by material such as Inconel750, Inconel718, 17-7PH. These materials have good corrosion resistance and high temperature resistance, can also provide adaptable working loads under harsh conditions and high temperature environments.

    Disc springs are the key part to fix Ball Valve, its performance will directly affect the sealing effect of the valve.

    When we design and manufacture Disc Springs for Ball Valves, we should pay attention to the following points.

    1. The ratio of OD/ID of Disc Springs for Ball Valvesis generally about , which is far less than . So the actual increase of Disc Spring load caused by the shortening of lever arm at positions I and III should be considered in the design and calculation.
    2. Due to the limitation of Ball Valve installation space, we have to consider in design that, the disc spring must provide suitable pressure in a limited space, furthermore, the sensitivity caused by assembly error (it is almost the same order of magnitude as compression of Belleville Spring) should be reduced.
    3. Due to the high rigidity of the China hegong disc spring, it is not appropriate to use the control method of force value of the standard disc spring. So the higher manufacturing and quality control level be required for manufacturer.
    4. For Disc Springs for Valves, its raw material influence the performance much. In some extreme cases, special customized materials are required to meet the stringent requirements.
    5. Due to the above particulars, please consult our engineers Tech@during the preliminary design in order to obtain the optimal design. 

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  • Belleville Washer DIN6796
  •  Belleville Washer DIN6796

    Belleville Washers DIN6796 also be known as "Conical Spring Washers", "Heavy Duty Bolting Washers", "Heavy Duty Safety Washers", "Spring Washers", "Belleville Springs", etc. Belleville Washers are widely used in industries such as national defense, metallurgy, engineering, electric power, machine tools, etc.

    Heavy Duty Safety Washers DIN6796 is a specialty version of Belleville Spring Washer used to improve security of bolt connection, manufactured as per DIN6796 standard. It is applicable to the static bolting applications in the medium and high strength range.

    Belleville Washers supplier helps to balance the stress relaxation in bolt / nut assembly, and has the following functions for loss of preload force, thermal expansion and contraction, and compression of seals caused by wear, deformation and creep of wearing parts:

    1. Have enough elasticity to improve the whole elasticity of the connecting pair.
    2. The inherent elastic force can compensate for the loss of preload force, meet the clamping force requirements, and ensure the reliability of the connection pair.

    Note: Relative movement will occur between the bolt and nut , if the lateral force overcomes the friction between the clamped elements. Generally, the Belleville washers cannot prevent the connection pair from loosening due to the lateral movement. Therefore, it is necessary to detect whether the Belleville washers maintains the clamping force.

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  •  Flange Washers
  •  Flange Washers

    Flange Washers also be known as "Flange Bolting Washers", "Spring Washers", be used for the connection between flange and bolt. Its application equipment includes: Reactor, stirrer and heat exchanger flange bolts; Pumps, Fans, Centrifuge Flanges and Anchor Bolts; Power bus and copper alloy bolts;Pipe flange and valve flange bolt. Flange Washers are widely used in industries such as Petrochemical, Power, Metallurgy, Paper, Pharmaceuticals, Food Processing, etc.

    Bolt flange joints are widely used in pressure vessel and pipe connections, and Leakage is the main failure mode of bolt flange connections. The main causes of leakage includes: differential thermal expansion/contraction, vibration, bolt creep and vibration. By installing flange washers in bolt flange joints, the elastic potential energy stored in the China Flange Bolting Washers can be converted into mechanical energy, to compensate the deformation of gasket and bolt, to ensure the bolt preload meets the sealing requirements, prevent leakage.

    How do we choose the right flange washers?

    Firstly, choose size of wholesale flange washers according to the bolt model & required load value. Then select the suitable raw material further according to the application environment. Material such as H13, 17-7PH, Inconel 718 (see the material document for details) are available in case of high temperature, cryogenic (low temperature) and anti-corrosion environment.

    The common flange washers with high-torque & ultra-high-torque are listed in the table. In case the flange washer in the table cannot meet the work requirements, contact us (Tech@), our technical engineers will work closely with you to specify or design, and then manufacture the proper flange washer for your application.

    Note:

    1. If the discspringsmfg flange washerwith too less load is selected by mistake, when the bolt preload is relaxed by 30%, the minimum preload required for sealing will not be provided. Its effect is equivalent to not using flange washers.
    2. If the flange washer with too much load is selected by mistake, it will exceed the elastic limit of the gasket material, and cause the permanent deformation. Its effect is worse than not using flange washers.

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  • Serrated Safety Washers
  •  Serrated Safety Washers

    Serrated Safety Washers is a kind of Belleville Disc Spring with trapezoid cross section and serrations on both sides. Serrated Safety Washers is connected with bolt or screw, it can prevent bolt relaxation after vibration by increasing the friction resistance.

    Serrated safety washers China are available in two different types: S type is suitable for normal duty, available for screw sizes: 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.

    m10 washer dimensions supplier surface Condition And Corrosion Protection:

    Polish

    Phosphating and oil

    Mechanical Zinc Plating

    Chemical Nickel Plating

    Docromet / Geomet Coating

    Electrophoresis

    If you require an item with different dimensions, material or surface treatment, please contact us (Tech@), our technical engineers will work closely with you to specify or design, and then manufacture the proper serrated safety washer for your application.

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  • Wave Springs
  •  Wave Springs

    Wave springs also are known as "wave spring washers" are round elastic parts with several sine waves on the metal foil ring. There are several structures as the table, including "Single-turn wave springs with partially overlapping", "Single-turn wave springs with gap", "Closed Single-turn wave springs", "Multi-turn (Peak to Peak) wave springs", "Multi-turn (Peak to Peak) wave springs with Shim Ends", "Nested wave springs".

    Wave spring China is a precise elastic element, which is suitable for mounting in the parts with limited installation space and stiffness requirements that other elastic elements cannot meet. Due to its unique structural form, the total height and working height of the wave spring are lower than traditional elastic elements, so it can reduce the space size of the parts and the overall cost of the product, and has an excellent cost performance.

    Due to its unique processing technology, Wave Springs supplier can meet various requirement about mechanical properties and fatigue life by adjusting design parameters. We can also design and process any structure type with an outer diameter of 5mm-200mm.

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  • U-shaped Spring for Elevator Safety Gear
  • U-shaped Spring for Elevator Safety Gear

    U-shaped spring for elevator safety gear also be known as "U-shaped spring", "safety gear spring", "elevator safety gear leaf spring", mainly be used for progressive elevator safety gear.

    Safety gear is the most important safety component in an elevator, the safety of the elevator just can be guaranteed with safe and effective safety gear.

    And the HEGONG safety gear spring is the core component of safety gear, it is the last barrier of elevator safety. When the elevator falls out of control and exceeds the limited speed, the U-shaped spring CHINA starts to work, which stops the lift car in emergency and clamps it on the guide rail, ensure the safety of the elevator passengers.

    We have been working closely with a number of well-known elevator manufacturers, and developed U-spring for a number of progressive safety gears successfully. If you have any questions, please contact us (Tech@), our technical engineers will work closely with you to design, develop the proper spring according to your requirements.

    More information you can click here.

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  • Volute Springs
  •  Volute Springs

    Volute springs, designed&manufactured according to JB/T11698-2013 standard (SHANGHAI HEGONG participated in drafting the standard). Its main features are small size and large load. HEGONG Volute springs is widely used in small spaces and large loads for vibration reduction. It has three structures as Equal helix angle, Equal pitch, and Equal stress.

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  • Ring Springs
  •  Ring Springs

    The ring springs is used cooperatively by the outer ring of interior conical and the inner ring of external conical, through inner ring contraction and outer ring expansion under the action of external force for buffer function ring springs WHOLESALE is mainly used in the projects with limited space and needs strong buffer.

    Design: According to the situation of use and force condition, using the computer aided design system independently developed by the company to confirm the geometric dimension of HEGONG ring spring and related processing requirements.

    More information you can click here.

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