Rubber Spring

What is a rubber spring?

Rubber spring, also known as a rubber suspension spring or rubber buffer, is a type of mechanical spring made from elastomeric materials, typically rubber or rubber-like compounds. It is designed to provide vibration isolation, shock absorption, and damping in various applications.Rubber springs offer several benefits, including high load-bearing capacity, corrosion resistance, low maintenance requirements, and a wide operating temperature range. They are also cost-effective compared to other types of springs and provide reliable performance over a long service life.

In industrial machinery and equipment, rubber springs are used to isolate and dampen vibrations caused by rotating or reciprocating machinery. They are often employed in applications such as vibrating screens, conveyors, crushers, and other equipment where vibration control is crucial. Rubber springs effectively reduce the transmission of vibrations, protecting the machinery and surrounding structures from excessive wear and damage.

Rubber spring material

Rubber springs are typically made from elastomeric materials, which are known for their elastic properties and ability to deform under stress and return to their original shape. The specific material used for rubber springs can vary depending on the application requirements and desired characteristics. Here are some common rubber materials used for manufacturing rubber springs:

Natural Rubber (NR): Natural rubber is derived from the latex sap of rubber trees. It offers excellent elasticity, resilience, and tear resistance. Natural rubber springs provide good vibration isolation and damping properties.

Synthetic Rubber: Various synthetic rubber compounds are used in rubber spring production, including:

a.Neoprene (CR): Neoprene is a versatile synthetic rubber known for its resistance to oil, chemicals, and weathering. It offers good mechanical properties and is commonly used in applications requiring resistance to environmental factors.

b.Styrene-Butadiene Rubber (SBR): SBR is a synthetic rubber with similar properties to natural rubber. It offers good abrasion resistance and is often used in applications requiring durability and resilience.

c.Polyurethane (PU): Polyurethane combines the properties of rubber and plastic, offering high load-bearing capacity, abrasion resistance, and durability. Polyurethane rubber springs are commonly used in heavy-duty applications.

What does adding a spring rubber do?

Adding a spring rubber, also known as a rubber spacer or rubber pad, to a spring assembly can serve several purposes and provide specific benefits. Here are some of the common reasons for adding a spring rubber:

Vibration Isolation: Rubber has excellent vibration isolation properties. By adding a rubber spacer to a spring assembly, it helps absorb and dampen vibrations, reducing the transmission of vibrations to the surrounding structure or equipment. This is particularly useful in applications where vibration control is crucial, such as automotive suspension systems or industrial machinery.

Noise Reduction: Rubber is an effective material for noise reduction. When placed between two components in a spring assembly, a rubber spacer can help reduce noise caused by the contact or impact between the components. It acts as a cushion, absorbing the energy and minimizing noise generation.

Load Distribution: In some cases, a rubber spacer can be used to distribute the load evenly across the spring assembly. By placing the rubber spacer between the spring and the load-bearing surface, it helps distribute the force and prevent localized stress concentration. This can help improve the longevity and performance of the spring assembly.

Height Adjustment: Rubber spacers can be used to adjust the height or preload of a spring assembly. By adding or removing rubber spacers, the overall height of the spring assembly can be modified, allowing for fine-tuning of the suspension or load-bearing system.

What are the advantages and disadvantages of rubber spring?

Advantages:

The shape is not restricted, and the stiffness in each direction can be freely selected according to the design requirements.

Although the elastic modulus is small, a large elastic deformation can be obtained, and it is easy to achieve ideal nonlinear characteristics.

It has a high internal resistance. This has a good effect on the absorption of sudden impact and high-frequency vibration and sound insulation.

The same rubber spring can bear multi-directional loads at the same time, thereby simplifying the structure of the system.

It is easy to install and disassemble, and no lubrication is required, which is conducive to maintenance.

Disadvantages:

High and low temperature resistance and oil resistance are worse than steel springs.

Rubber springs used in engineering are simpler in shape than bellows, but it is quite difficult to calculate their elastic properties.

Because they are not pure elastomers, but viscoelastic materials, their mechanical properties are relatively complex.

How does a rubber spring work?

Working principle of rubber springs is based on the elastic properties of rubber materials. When external force is applied to a rubber spring, the rubber material will deform elastically. The molecular chains of the rubber will stretch and twist under the force, and when the external force is removed, the rubber spring will return to its original shape. The elastic properties of rubber springs enable them to absorb and damp vibrations. When external force acts on a rubber spring, the rubber material deforms elastically and stores energy. Once the external force is removed, the rubber spring releases the stored energy and generates a reaction force, thereby reducing or eliminating the effects of vibration.

Rubber spring specifications

Specification D×H×d﹝mm﹞	Outer diameter D (mm)	Inside diameterd (mm)	Height H (mm)	Work deformation FV (cm)	Stiffness KL (kg/cm)	Working load(Pa)
Ф50×50×Ф18	50	18	50	0.8	50	80
Ф60×60×Ф20	60	20	60	0.8	60	100
Ф80×80×Ф25	80	25	80	0.8	100	200
Ф80×80×Ф30	80	30	80	0.8	100	200
Ф100×100×Ф25	100	25	100	1	140	500
Ф100×100×Ф30	100	30	100	1	140	500
Ф100×130×Ф30	100	30	130	1	150	550
Ф120×120×Ф30	120	30	120	1.2	220	600
Ф120×140×Ф30	120	30	140	1.2	230	650
Ф127×127×Ф30	127	30	127	1.2	230	640
Ф130×130×Ф30	130	30	130	1.3	240	680
Ф140×140×Ф30	140	30	140	1.4	300	700
Ф140×160×Ф30	140	30	160	1.4	350	680
Ф140×160×Ф40	160	40	160	1.4	350	680
Ф160×160×Ф30	160	30	160	1.6	350	750
Ф160×160×Ф40	160	40	160	1.6	350	750
Ф160×160×Ф50	160	50	160	1.6	350	750
Ф160×160×Ф60	160	60	160	1.6	350	750
Ф160×235×Ф40	160	40	235	1.6	400	800
Ф160×240×Ф40	160	40	240	1.6	400	800
Ф180×180×Ф40	180	40	180	1.8	400	800
Ф180×240×Ф40	180	40	240	1.8	400	1000
Ф200×150	200		150	1.5	380	900
Ф200×150×Ф65	200	65	150	1.5	350	800
Ф200×200×Ф40	200	40	200	2	450	1000
Ф200×200×Ф50	200	50	200	2	450	1000
Ф200×300×Ф50	200	50	300	2	480	1300
Ф220×220×Ф40	220	40	220	2.2	500	1500
Ф220×220×Ф50	220	50	220	2.2	500	1500
Ф240×240×Ф50	240	50	240	2.4	550	1800
Ф250×250×Ф50	250	50	250	2.5	580	2000
Ф300×245×Ф80	300	80	245	1	480	2800

What is the difference between rubber spring and steel spring?

Rubber springs and steel springs are two common types of springs, which have some differences in materials, elastic properties and application areas.

Material: Rubber springs are made of rubber materials, while steel springs are made of metal steel.

Elastic properties: Rubber springs have good buffering and rebound properties, can absorb and damp vibrations, and have a certain degree of softness. Steel springs have high elasticity and strength and can withstand large forces and deformations.

Load capacity: Due to the high strength and rigidity of steel springs, they are usually used in applications that need to withstand large loads and deformations, such as automotive suspension systems, industrial machinery, etc. Rubber springs are suitable for light loads and vibration damping occasions, such as building structures, electronic equipment, etc.

Damping effect: Rubber springs have good damping characteristics and can effectively reduce vibration transmission and noise generation. The damping effect of steel springs is relatively low.

How to choose rubber spring

There are several key factors to consider when choosing rubber springs:

Load requirements: First you need to determine the required load range. Rubber springs should have sufficient load carrying capacity to support the required operating load. Load requirements can be determined based on factors such as the size of the vibrating screen, material properties and working conditions.

Vibration characteristics: The vibration characteristics of the vibrating screen are crucial to the selection of rubber springs. The amplitude, frequency and working mode of the vibrating screen need to be considered. Different vibration characteristics may require rubber springs of different hardness, shape and number to achieve the desired vibration control effect.

Environmental conditions: The working environment is also important for the selection of rubber springs. Temperature, humidity, the presence of chemicals, and possible corrosion and wear factors need to be considered. Choose rubber materials with wear resistance, corrosion resistance and high temperature resistance to ensure the long-term stability of the rubber spring in harsh environments.

Spring design: The design of the rubber spring should match the structure and installation method of the vibrating screen. The shape, size and placement of the rubber spring need to be considered to ensure it will fit correctly and provide the required shock absorption and isolation.

Quality and Reliability: It is very important to choose rubber springs with good quality and reliability. High-quality rubber materials and manufacturing processes can ensure that rubber springs have stable performance and long service life.

Rubber Spring Manufacturer

Dahan Factory is committed to designing, manufacturing and selling high-quality rubber springs to meet the shock absorption and vibration control needs of various industries. Dahan pays attention to product quality and performance, using high-quality rubber materials and advanced production processes to ensure that its rubber springs have good elasticity, durability and anti-aging properties. Dahan's rubber springs are widely used in mechanical equipment, automobiles, construction projects, power equipment and other fields. They can effectively absorb and damp vibrations and protect the safe and stable operation of equipment and structures. The products produced have the advantages of reliable performance and strong customizability, which can meet the special needs of customers.