We carry an extensive line of Lord mounts, which are designed to manage the

vibration, noise and shock that can cause mechanical systems to fail. The key to

isolating vibration is to reduce its transmission to a component or supporting

structure. In a nutshell, the rubber in a mount acts as a

Rubber Spring with its own

natural frequency, and this frequency partly depends on the stiffness of the spring.

But why is rubber such an ideal material in this type of situation?
The answer to this question requires knowing some basic facts about both natural

and synthetic rubbers. This includes defining what we commonly call rubber. Lord

Corporation’s Design Monograph DM1101a (available upon request) states, it “is a

synthetic or natural material whose long, coiled, high-molecular weight chains have

been cross-bridged by certain chemical ingredients to form a network. It is

characterized by the ability to accept and recover from extreme deformation of 200

percent or more. The term elastomer includes natural rubber and the many synthetic

materials that possess rubber-like properties.” The diagram below shows the chemical

structure of natural rubber, cis-polyisoprene. Natural rubber is composed of long

chains consisting of at least 10,000 similar chemical units.
In addition, rubbers used for industrial and engineering applications generally

are compounded with fillers that affect the properties of the vulcanizate. The

fillers usually consist of carbon black, and the formulation used with greatly affect

the properties of the rubber, such as tear and abrasion resistance, modulus,

hysteresis and creep. Also, other chemicals may be added which protect the rubber

from sunlight, ozone and oxygen.
The ability to formulate rubbers with specific properties makes it so versatile

and useful in an almost limitless number of applications. Natural rubber in

particular is especially valuable as Rubber Springs material because of its longevity,

resilience, low cost, resistance to a wide range of temperatures, and ability to bond

to metals. Natural rubber is used in many of our Lord Mounts because of these

characteristics and its ability to reduce the transmission of both vibration and

noise in harsh environments. For example, it can resist the the heat and chemicals

encountered in vehicle engines, and its resistance to swelling when immersed in

liquids means it can also successfully withstand underwater conditions for many

years.


What is a Rubber Gasket?
Rubber Gaskets are elastic

components used for mechanically sealing the microscopic gap between two mating

surfaces or joints. Examples of these surfaces are flange faces of piping and

fittings, mating surfaces of an automotive cylinder head and engine block, tank rim

and cover, door edges, frames, and so on. Rubber gaskets seal surfaces by flowing in

and filling the surface irregularities of rigid parts. The sealing effect is created

by the parts exerting compressive forces which plastically deform the gasket.
The sealing capability of rubbers is attributed to their elastomeric nature.

Rubbers, natural or synthetic, belong to a family of materials called elastomers.

Elastomers are classes of polymers that have a highly elastic nature created by

cross-linking long polymer chains into amorphous structures. The intermolecular

forces between the polymer chains are relatively weak; this allows them to be

reconfigured upon application of stress. Because of this property, an elastomeric

Rubber Flange

Gaskets can easily conform to the profile of the surfaces creating a tight

seal.
Advantages of Rubber Gaskets
Rubber gaskets, compared to their metallic and other non-metallic counterparts,

offer several benefits due to their unique set of properties. Elasticity, or the

ability to be deformed, is the key attribute of rubber that allows it to form tight

seals. Rubber gaskets are also easier to process and can be formulated from different

raw materials. Below are some of the advantages of rubber gaskets.


Vibrating Screen Rubber Gaskets are manufactured by combining raw rubber and

additive materials and forming them into the desired profile. Like any other

polymers, rubbers have excellent formability. In its liquid or uncured state, whether

it be the thermosetting or thermoplastic type, rubber flows easily into molds and

dies. Once hardened or cured, the material can be easily cut or machined to near-

perfect dimensions. In contrast with metallic and other non-metallic gasket types,

the production of rubber gaskets requires low heat and pressure. Thus, cheaper

tooling is used, and lower operating costs are involved.
Rubber Seals are natural or

synthetic rubber products used to seal or fill gaps, insulate spaces from atmospheric

conditions or water and protect surfaces from corrosion. Rubber seals are used in

many industrial, commercial and consumer settings. Many kinds of manufacturing

equipment require use of rubber seals, especially in manufacturing processes that

involve pressurized liquids or gasses. Machinery that is sensitive to dust

accumulation or environmental conditions may also be shielded by some variety of

rubber sealant.
Rubber Seal

Strip is an essential component in aerospace and marine applications in which

atmospheric stabilization is necessary. In consumer contexts, rubber seals can be

found in garden hoses, swimming pool pump systems, kitchens, bathrooms, as insulation

and weatherstripping and in many other applications. A rubber seal can be a gel,

film, putty or strip and will adhere to glass, ceramics, concrete, paper, bricks,

other rubber materials, textiles, leather, metal, wood, plastic and many composite

materials and porous surfaces. Rubber is an elastometer and can be created from

harvesting and processing natural latex; it can also be produced synthetically by

processing certain hydrocarbons. Both natural and synthetic rubber must undergo a

series of shaping and treatment processes in order to become useful rubber seals.
Rubber Mounts are a type of

shock absorber used to relieve stress and kinetic energy that is produced by

vibrations in devices such as engines, production machinery and more. Vibration is

defined as a series of oscillations that move at a cyclic pace at varying frequencies

and when applied consistently to motor parts or components can drastically increase

the rate of material deterioration.
Rubber mounts typically have two parts: an isolator and fasteners. They are

classified according to applications and specific characteristics such as marine,

cone, shear, center bonded, machine leveling, stationary or hanging, shear and

specialty. In general, the fasteners are composed of threaded metal, while the

isolator core is composed of natural or synthetic rubber used to absorb vibration.
The Rubber Shock Absorber

and pads are made of recycled or synthetic rubber that provides excellent

physical and chemical properties. The vibration dampening materials offer protection

for both your machines and your floors from the harmful vibrations emitted when the

equipment is working. Additionally, anti-vibration rubber pads reduce the amount of

noise generated by the movements of the machinery. A rubber insulator, whether it is

made of recycled or synthetic rubber, is strong enough to withstand abrasive

conditions while also elastic enough to provide cushioning to absorb the force of

impact.