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Cushyfloat Mounting The Cushyfloat mounting is a general purpose unit designed to provide effective isolation of vibration and noise arising from both static and mobile equipment. Originally designed for use with marine engines, the Cushyfloat is a simple to install, compact, low profile mounting. It combines 3 way control of the suspended equipment with relatively large static deflections where the rubber is loaded in shear and compression. The design incorporates bump and rebounds control features which limit excessive movement under shock loading. Top metal gives protection against oil contamination and the protective finish resists corrosion attack. The propeller thrust on marine applications is accommodated. There are four sizes in the standard range with varying degrees of rubber hardness catering for point loads from 32Kg to 3000kg. Natural frequencies as low as 8Hz are possible.
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Cushyfoot® mountings have two rubber elements, used in shear and compression, to provide excellent stiffness characteristics for the isolation of a wide range of vibration frequencies. There are three sizes, 17-0290 for loads up to 230 kg per mounting, 17-0213 for loads up to 1250 kg and 17-0346, which will carry up to 1280 kg per mounting, but will provide up to 16 mm static deflection. The Cushyfoot mounting benefits from the following Features: • A wide load range from 50 to 1280 kg • Clear branding for product identification • Strong casting for safety and reliability • Dissimilar horizontal stiffness gives optimum isolation and motion control Typical applications Include: • Diesel engines • Generator sets • Compressors • Fans • Hydraulic units • Lift machinery
Buffer type ANB consists of a cylindrical rubber body bonded to a square base plate of steel. Each corner of the baseplate has a fixing hole. The special high-hysteresis rubber compound is used to ensure as much energy absorption as possible. The volume of the rubber is used at optimum efficiency. For new machine developments, simpler designs and lighter calculated forces can be considered enabling a lower cost. Through the damping of the rubber, a high degree of energy absorption is achieved. The rubber is stiffer under dynamic conditions compared to static or pseudo-static loading; hence more energy is absorbed for a given deformation. The shock buffer type ANB is used to effectively limit the movement of equipment or machine components.
The metal spacer incorporated into the design provides a higher ratio of compression to shear stiffness, increasing the load carrying capacity in compression mode or combined compression and shear mode. The 17-1780 engine mount has a void in the rubber section to allow the use of a center damping device. The 17-1780 can be equipped with a rebound washer for mobile applications
Each bush comprises of a high tolerance conical metals with high-quality natural rubber compounds featuring low creep and high tear and tensile properties. This provides for high fatigue resistance at high loads and movements. They also provide superior shock attenuation whilst providing good control in the radial and axial directions. Conical bearings are used usually in pairs to transfer radial and axial loads whilst allowing large torsional movement and some conical. These are therefore suitable in applications where controlled flexibility is required such as in large travel suspension systems.
Spherical roller bearings are ideal for their vertical loading and insulation against low-amplitude vibrations. Masses that experience or themselves cause minor vibration amplitudes according to deflection can be mounted on spherical roller bearings. This makes this mount configuration suitable for selected engines, compressors, units, mounting equipment and also heavy duty switch cabinets, control systems, stationary control panels, measurement equipment. Typical applications include: • Engine • Compressors • Heavy duty switch cabinets • Control systems • Stationary control panels • Measuring equipment
Equally suited for isolating the vibrations from low-speed machines and equipment, the type BA and type Double U-Shear are designed to protect sensitive and lightweight units from external shock vibrations. Both mountings utilize bonded rubber in shear to permit high deflection and provide excellent isolation of low frequencies. The BA shear is a half section, suitable for very light loads
The compactor shear mount supports high compressive loads with low shear stiffness. They are suitable for the suspension of vibratory compactor drums on compactor roller vehicles and vibratory screen equipment. Compactor shears benefit from high tensile strength due to the bonding of superior grade rubber compounds to steel mounting plates. They can be deployed in pairs at an angled arrangement, loaded in combined compression and shear, to optimize vibration isolation performance.
Rubber stop washers are versatile components for effectively limiting movement. They are preferably used for axial path limitation with Conical Mounts or Bushes. These elastomer-coated washers have different stiffnesses and dampening properties. Typical applications include: • Buffers • Used with the Metacone range for rebound protection • Universal applications
Height Adjusters (HA) are available in various sizes to suit the small and medium range of Trelleborg AVS mountings. It allows mounts to be retrofitted to existing installations where original spares are unobtainable. The HA range are made in corrosion protected grade 8 steel. The steel is zinc plated. The Height Adjuster is supplied complete with washer and nut for fastening to the mounting and two nuts and a lock washer for the engine foot fastening. The Height Adjusters allow ease of aligning when installing equipment. When installing secure the bolt into the mounting, it is recommended to apply thread lock adhesive. For optimum solutions where close coupling tolerances are required, allow the mountings to settle for 48 hours before final alignment of the engine installation.
Type VT has been designed so that upon installation the rubber section is subjected to shear loads, thus providing high deflection even at low loads. Two different parts are available. The VT-upper provides for protection against tension preventing the isolated unit from falling down if overloading occurs. VT-lower is designed to accept horizontal compression loads and allow shear deflection vertically. Typical applications include: • Instrument cabinets • Light machinery • Fans • Refrigeration units
Overload and rebound washers (top and bottom) are necessary to limit maximum movement in the event of shock loading.
The latest generation of Cushyfloat is a completely new and innovative design that offers engine manufacturers and boat builders Maximum versatility. This product has multiple performance benefits for customers whose requirements may be varied and challenging for conventional solutions.
The Cushyfloat HT (High Thrust) mounting has been developed to meet the increased torque output and higher thrust load requirements of many modern marine power units. By careful design of the rubber section, relatively high degrees of flexibility in the vertical and lateral modes are combined with high stiffness in the longitudinal fore and aft direction, thereby giving good vibration isolation properties and minimum movement under thrust forces. The design incorporates bump and rebound control features which limit excessive movements under shock loading. The mountings have a high inbuilt tensile strength which renders them suitable for the suspension of power units in lifeboat applications. The top gives protection against oil contamination and the protective finish resists corrosion attack. Two designs and different rubber compounds allow loads between 85 and 1070Kg to be accommodated.
Trelleborg Mini HD Cushyfloat mounts combine 3-way control of suspended equipment with large static deflections where the rubber is loaded in shear and compression. The design incorporates bump and rebounds control features which limit excessive movement under shock loading. The easy to install mount features prominent use of lightweight engineered plastics which offer greater environmental protection with no compromise in product performance.
The robust construction of the cushymount is designed to withstand high impact forces, incorporating a built-in buffer to limit the vertical and horizontal movement of the suspended equipment, without the need for external limiting devices. Dissimilar stiffness rates in the two horizontal modes optimize the suspension system to avoid resonances with the main engine orders, while ensuring a high degree of vibration isolation during operation with rotational speeds as low as 500 rpm. The supports are approved by Lloyd's Register of Shipping and may be available with a height adjustment function for special circumstances.
The Cushymount benefits from large deflections, high load capacity and long service life. The product incorporates an integral adjustable buffer to limit horizontal and vertical movements of suspended equipment under shock loading, without the need for external devices such as links or buffers. The mounting assembly consists of four bonded rubber to metal circular springs loaded in shear and compression, to give optimum load-deflection properties in both vertical and horizontal directions. The rubber spring elements are protected from physical damage and oil/fluid contamination by the robust S.G. iron castings in which they are housed.
Cylindrical mounts, also known as bobbins, can be used in a wide variety of industrial applications to permit relative movement of suspended mass to the ground, and isolate the effects of noise, vibration and shock. The mountings are available in a large range of sizes with low to high load carrying capacity, and also have standard metric threads of varying lengths. They are most effective when fitted to take loads in shear and compression, but can also be used in pure shear or compression directions.
In common with the range of smaller Equi-Frequency mounts, these heavy duty parts have substantially the same stiffness in all directions and are designed to meet the shock requirements of BR8470 (UK MOD). With two sizes of mounts produced in two rubber compounds, it is possible to support static loads from 40 to 215kN. Parts are available with ferrous and non magnetic metal parts. Rubber sections are protected with an MOD approved protective lacquer to reduce oil and ozone attack.
General-purpose low-profile mounting for use where space is restricted. Suitable for stationary applications. May also be used to protect delicate or sensitive equipment from shock or disturbances. Each design has substantially the same stiffness in vertical and horizontal directions. Load range 11 kg to 54 kg. Can be used as a small anti-shock mounting when static loadings are derated.
APPLICATION Optimal vibration isolation for a wide range of applications. For smaller, light-weighted equipment that needs optimal vibration isolation at both high and low frequencies, such as generator sets, pumps, small diesel engines, compressor units, ventilators, measuring equipment, etc. MATERIAL Rubber part: Highest quality natural rubber Metal: Aluminum IDENTIFICATION The type is marked in the mounting plate ADVANTAGES Approved by Lloyd’s Register Optimum vibration isolation Easy and quick installation Build in end-limiter to protect against overload Capable of handling both vertical and horizontal forces Natural rubber gives maximum vibration isolation One type fits all weights between 50 and 400 kg Stock item.
APPLICATION Optimum vibration isolation for a wide range of applications. For smaller, light-weighted equipment that needs optimal vibration isolation at both high and low frequencies, such as generator sets, pumps, small diesel engines, compressor units, ventilators, measuring equipment, etc. MATERIAL Rubber part: Highest quality natural rubber Metal: Aluminum/Steel IDENTIFICATION The type is marked in the mounting plate. ADVANTAGES Approved by Lloyd’s Register Optimum vibration isolation Easy and quick installation Build in end-limiter to protect against overload Capable of handling both vertical and horizontal forces Natural rubber gives maximum vibration isolation One type fits all weights between 50 and 400 kg Stock item
APPLICATION Optimal vibration isolation for a wide range of applications. For larger, medium-weighted equipment under extreme conditions that needs optimal vibration isolation at both high and low frequencies, such as generator sets, pumps, diesel engines, compressor units, ventilators, measuring equipment, small deck houses, cabins, cooling units, etc. MATERIAL Rubber part: Highest quality natural rubber Metal: Aluminum/Steel IDENTIFICATION The type is marked in the mounting plate. ADVANTAGES Approved by Lloyd’s Register Optimum vibration isolation Easy and quick installation Build in end-limiter to protect against overload Capable of handling both vertical and horizontal forces Natural rubber gives maximum vibration isolation One type fits all weights between 50 and 2200 kg Stock item
APPLICATION Optimal vibration isolation for a wide range of applications. For larger, medium-weighted equipment under extreme conditions that needs optimal vibration isolation at both high and low frequencies, such as generator sets, pumps, diesel engines, compressor units, ventilators, measuring equipment, small deck houses, cabins, cooling units, etc. MATERIAL Rubber part: Highest quality natural rubber Metal: Aluminum/Steel IDENTIFICATION The type is marked in the mounting plate. ADVANTAGES Approved by Lloyd’s Register Optimum vibration isolation Easy and quick installation Build in end-limiter to protect against overload Capable of handling both vertical and horizontal forces Natural rubber gives maximum vibration isolation One type fits
APPLICATION Optimal vibration isolation for a wide range of applications. For larger, heavy-weighted equipment under extreme conditions that needs optimal vibration isolation at both high and low frequencies, such as generator sets, pump units, large diesel engines, compressor/cooling units, gearboxes, windmills, deck house mountings, control cabins. MATERIAL Rubber part: Highest quality natural rubber Metal: Aluminum IDENTIFICATION The type is marked in the mounting plate. ADVANTAGES Type approvals available on request Optimum vibration isolation Easy and quick installation Build in end-limiter to protect against overload Capable of handling both vertical and horizontal forces Natural rubber gives maximum vibration isolation One type fits all weights between 1000 and 6000 kg Stock item
APPLICATION Optimal vibration isolation for a wide range of applications. For larger, heavy-weighted equipment under extreme conditions that needs optimal vibration isolation at both high and low frequencies, such as generator sets, pump units, large diesel engines, compressor/cooling units, gearboxes, windmills, deck house mountings, control cabins. MATERIAL Rubber part: Highest quality natural rubber Metal: Aluminum/Steel IDENTIFICATION The type is marked in the mounting plate. ADVANTAGES Type approvals available on request Optimum vibration isolation Easy and quick installation Build in end-limiter to protect against overload Capable of handling both vertical and horizontal forces Natural rubber gives maximum vibration isolation One type fits all weights between 1000 and 6000 kg Stock item
APPLICATION Optimal vibration isolation for a wide range of applications. For larger, heavy-weighted equipment under extreme conditions that needs optimal vibration isolation at both high and low frequencies, such as large generator sets, pump units, large diesel engines, compressor/cooling units, gearboxes, windmills, deck house mountings, control cabins. MATERIAL Rubber part: Highest quality natural rubber Metal: Aluminum/Steel IDENTIFICATION The type is marked in the mounting plate. ADVANTAGES Type approvals available on request Optimum vibration isolation Easy and quick installation Build in end-limiter to protect against overload Capable of handling both vertical and horizontal forces Natural rubber gives maximum vibration isolation For loads between 2.750 and 12.000 kg Stock item
The innovative Trelleborg Evolo 633 TwistLock for modular and skid based units solve the vibration issues causing potential damage and noise in the units, while the flexibility and easy handling of the TwistLock is maintained. Personnel on offshore platforms are often facing vibration challenges caused by modular and skid based units. These vibrations are transmitted throughout the steel structure and may result in unforeseen damage or failure. Additionally, these vibrations affect the living and working environments of offshore workers. Eventually, this will negatively affect production, as poor working conditions often lead to inefficiency, a decrease of morale on the platform, and noncompliance with working conditions and safety regulation.
This mount is suitable for both mobile and static applications, for the protection of sensitive equipment from external vibration or for vibration isolation. Flanged instrumountings can become fail-safe if fitted with a washer to the top and bottom of the rubber section.
This load bearing spring with restrained motion capability has additional features such as high dampening to deliver decreased motion near resonance frequencies and an isolator to provide vibration isolation at a specified frequency.
Evolo 631 Divided Spindle GRADE A-F APPLICATION Optimum vibration isolation for a wide range of applications. For larger, heavy-weighted equipment under extreme conditions that needs optimal vibration isolation at both high and low frequencies, such as generator sets, pump units, large diesel engines, compressor/cooling units, gear boxes, windmills, deck house mountings, control cabins. MATERIAL Rubber part: Highest quality natural rubber Metal: Aluminum/Steel IDENTIFICATION The type is marked in the mounting plate. ADVANTAGES Type approvals available on request Optimum vibration isolation Easy and quick installation Build in end-limiter to protect against overload Capable of handling both vertical and horizontal forces Natural rubber gives maximum vibration isolation One type fits all weights between 1000 and 6000 kg Stock item
APPLICATION Optimal vibration isolation for a wide range of applications. For larger, heavy-weighted equipment under extreme conditions that needs optimal vibration isolation at both high and low frequencies, such as generator sets, pump units, large diesel engines, compressor/cooling units, gear boxes, windmills, deck house mountings, control cabins. MATERIAL Rubber part: Highest quality natural rubber Metal: Aluminum/Steel IDENTIFICATION The type is marked in the mounting plate. ADVANTAGES Type approvals available on request Optimum vibration isolation Easy and quick installation Build in end-limiter to protect against overload Capable of handling both vertical and horizontal forces Natural rubber gives maximum vibration isolation Stock item
APPLICATION Optimal vibration isolation for a wide range of applications. For larger, heavy-weighted equipment under extreme conditions that needs optimal vibration isolation at both high and low frequencies, such as large generator sets, pump units, large diesel engines, compressor/cooling units, gearboxes, windmills, deck house mountings, control cabins. MATERIAL Rubber part: Highest quality natural rubber Metal: Aluminum/Steel IDENTIFICATION The type is marked in the mounting plate. ADVANTAGES Type approvals available on request Optimum vibration isolation Easy and quick installation Build in end-limiter to protect against overload Capable of handling both vertical and horizontal forces Natural rubber gives maximum vibration isolation For loads between 2750 and 12.000 kg Stock item
APPLICATION Optimal vibration isolation for a wide range of applications. For larger, heavy-weighted equipment under extreme conditions that needs optimal vibration isolation at both high and low frequencies, such as large generator sets, pump units, large diesel engines, compressor/cooling units, gearboxes, windmills, deck house mountings, control cabins. MATERIAL Rubber part: Highest quality natural rubber Metal: Aluminum/Steel IDENTIFICATION The type is marked in the mounting plate. ADVANTAGES No need for additional shims due to compensation of any height differences in set-up Type approvals available on request Optimum vibration isolation Easy and quick installation Build in end-limiter to protect against overload Capable of handling both vertical and horizontal forces Natural rubber gives maximum vibration isolation For loads between 2750 and 12.000 kg Stock item
The GK Mount is specifically designed for the isolation of heavy machinery with low interfering frequencies. It is widely used under concrete foundations supporting heavy machinery.
Hydro bushes are Elastomer springs with integrated hydraulic damping. Suitable for mountings of combustion engines, cabs, pumps and compressors, mainly in agricultural machines and construction machinery.
The Hydro Mount DL, as a hydraulically damping rubber mount, solved the designer’s conflict of how to mount a mass that is excited by a wide frequency spectrum. Particularly if low frequencies – between 5 Hz and 15 Hz – can occur as the excitation frequency, on the one hand, high damping in the natural frequency range of the system, and on the other, a good isolation property above this natural frequency (supercritical mounting) is necessary.
The mount design, the chosen fluid and the hydraulic mechanism provide the characteristic wide-band damping. In cases with remote excitation frequencies in the lower frequency range, the use of this hydro mount permits an optimal mounting. By precise reduction of the fluid chamber stiffness of one of the chambers, a significantly improved compromise of effective vibration reduction and structure-borne sound isolation is achieved as opposed to the hydro mounts without this design.
Instrument mounts are utilized for vibration insulation of electronic components, measuring devices and precise mechanical apparatuses and for instrument panels or control panels in industrial applications. A common requirement of these mounts is that they keep vibrations or shock load introduced via the anchorages away from the instrument or device. The mounts help to protect sensitive instruments from external shock loads in mobile and non-mobile use.
The Level Mount is installed in minutes by following the instructions provided. There is no need to fix the machine to the floor since the rubber base of the mounting keeps the machines in place. Whenever necessary, the machine can be easily re-positioned. The level is adjusted with load applied. The rubber element of the level mount is oil and chemical resistant. All metal parts are zinc-plated and chromated for protection against corrosion. Models TF 250, TF 600 and TF 1200 are also available in S/S (ISO 2604/11, BS 3605:1). The mount, with level adjuster, is suitable for a wide range of free standing workshop machines. Typical applications include: • Lathes and Milling machines • Grinding machines • Presses • Plate shears • Nibbling machines • Punches and cutters
The Low-Frequency mounts are designed for shear as well as compressive loads. The continual tensile load should be avoided. These anti-vibration mounts are designed to give large deflection for small loads and are used to protect suspended equipment against vibration and impact. Typical applications include: Light instruments Light fans and compressors Computer and electronic units Shock mounting for light applications
MCR mountings are designed for mobile applications where the disturbing frequencies are high and restricted movement is needed. The MCR mount is an easy to install single part mount that can be used to take up a small bracket and chassis misalignment, it provides isolation of high-frequency vibration and offers shock protection of vehicle-mounted equipment.
The MDS mounting is easy to install based on a 2 part single bolt installation. There is no requirement for radius or chamfered installation hole and a steel flange prevents rubber wear at the bracket interface. The bonded steel snubbing cup limits vertical movements and prevents excessive strain in rubber. The cup is encapsulated in rubber to prevent corrosion.
Metaxentric Bushes are similar to conventional UD Bushes but with inner and outer sleeves offset radially. This feature provides a greater rubber thickness and hence increased flexibility in the normal direction of loading, whilst maintaining control in other modes and still allowing torsional movement. The rubber section is relieved to eliminate harmful tensile stresses.
The Novibra M-mount is specifically designed to give large deflection at low loads, whilst being compact in weight and easy to install. The M-Mount is ideal for applications involving isolation of low frequency vibrations in all planes. Also suitable for shock attenuation due to the designed ability to offer large deflection, it provides passive vibration isolation on electronic instruments, measuring equipment and test cells.
RA mount uses the rubber profile in shear and compression to obtain good vertical flexibility with the advantage of horizontal stability. For normal speeds of approx. 1500 rpm, the RA provides a degree of isolation of 75-85%. For better isolation, the alternative RAEM or M-Series can be chosen. Its unique construction and the latest production methods make the RA a high-performance mount, with a number of advantages such as corrosion protection to cope with arduous environments and a domed shaped cover to protect against oil contamination.
Similar in design to the RA/RAEM range, type RAB uses rubber in shear and compression for optimum stiffness characteristics and horizontal stability. Especially effective on small 1, 2 and 3 cylinder diesel engines where the special compound employed provides effective isolation of vibration while eliminating much of the excessive movement normally associated with 1-3 cylinder engines.
The RAEM is a universal mounting for applications demanding maximum vibration isolation. It is a further development of the RA mount, where EM stands for 'extra soft' and is suitable for both light and heavy machines. Its unique construction and the latest production methods make the RAEM mounting a high performance mount, with a number of advantages such as, corrosion protection to cope with arduous environments and a domed shaped cover to protect against oil contamination.
This range of mountings is suited to the suspension of heavy equipment and machinery and is extensively used as a flexible mounting for large medium-speed diesel marine propulsion units. The ratio of compression to shear stiffness rates can be varied by incorporating rigid interleave plates in the rubber section, thereby enabling the overall suspension properties to be optimized to isolate the major disturbing vibrations. The mountings are usually installed in a Vee arrangement and when correctly positioned, afford a high level of vibration isolation whilst at the same time keep movements of the suspended equipment, under the action of external forces, to a minimum
SAW mounting consist of a cylindrical shaped rubber section with integrally bonded inter-leaf metal plates bonded of two square heavy duty outer metal fixing plates. Designed for large compression forces with minimum deformation, while providing low shear stiffness rates. The combination of a stable low installation height, high compression strength and low shear stiffness makes the SAW a versatile high performance anti-vibration mounting. By connecting two SAW elements in series i.e. on top of the other, an increased isolation efficiency is achieved in both shear and compression planes. Where larger deflection are required in the vertical plane, SAW mountings are mounted at a calculated angle configuration to provide the optimum spring rate,
The robust and failsafe design enables suitability for ROPS and FOPS cab structures. The mount offers a load range from 180 to 380kg with a rising-rate stiffness characteristic to help limit motion and transmitted acceleration. It’s simple press fit and tapered cap to allow cab/clevis to slip over mount without catching. The TCM also features a built-in vertical motion limiter to prevent excessive cab displacements during a shock input, a feature which also protects the bush from overload therefore ensuring long service life.
UH is an antivibration mounting designed to accommodate axial static and shock loads in both directions. The dynamic natural frequency is constant irrespective of the static load. Mounting type UH is particularly suitable for the suspension of both mobile and static cabs as well as platforms on agricultural vehicles. When fitted with overload/rebound washers, a high strength fail-safe installation is provided.
The bush consists of two concentric sleeves with rubber securely bonded between them. Designed to accommodate torsional movement and axial and radial loads. The rubber is pre-stressed to give maximum dynamic strength and durability. The bonded rubber takes up full movement so lubrication or other bearing maintenance in not required. The bush has excellent sound and vibration isolation characteristics, enabling structures fitted with the Metalastik UD sleeve to be silent and vibration free.
The Metacone product range is designed for high load capacity with relatively large static deflections. The high loading for a given size is achieved by utilizing the rubber to best advantage in shear and compression. Typically the mountings are assembled with overload and rebound washers to control and limit movement of the suspended equipment under shock loads. Their compact fail-safe design is available for a wide range of loadings, with in some cases, alternative fixings. Cut-outs in rubber sections on various sizes provide different vertical/horizontal stiffness ratios.
The CAB mount has been designed to provide optimum suspension characteristics. This has been achieved through ensuring the Compression and Shear stiffness characteristics being relatively stiff in their respective directions. The CAB mounts can withstand small shock loadings to help improve driving conditions for the operator. The mount should be installed with washers top and bottom to ensure a failsafe system.
Vee-Keillager mountings have ideal stiffness characteristics for rail vehicle engine suspensions. The vertical stiffness rate ensures that when the mounting is properly loaded, the vertical's natural frequency doesn't coincide with the body's bending frequency. The high longitudinal stiffness controls shunting shock motion. The mounting is usually connected to the solebars via that base casting, and a buffer is attached to the Vee section casting to limit tensile loads. This high load capacity mounting has a relatively large rubber volume providing a high degree of vibration and noise isolation, making it ideally suited for suspending engines installed in public service and goods vehicles.
A heavy duty flexible bearing which combines high load capacity with the ability to accommodate torsional and angular movements in all planes without lubrication and metal to metal wear. It is available with center bore or solid member depending on fixing requirements. General guidance notes for selection: • Properties quoted for the components in this document relate to continuous steading loading or deformation conditions. • For continuous dynamic cyclic loading or deformation, the maximum values should be reduced to approximately 30% of the figures quoted, depending on frequency. For medium and low incidence loading and deformation, the tabled values may be increased up to 2 to 3 times. Combined stressing in the different modes and the effects of stress reversals may require a more critical assessment. Typical applications include: • Traction and braking reaction rods • Hydraulic damper fixings
Height Adjusters (HA) are available in various sizes to suit the small and medium range of Trelleborg AVS mountings. It allows mounts to be retrofitted to existing installations where original spares are unobtainable. The HA range are made in corrosion protected grade 8 steel. The steel is zinc plated. The Height Adjuster is supplied complete with washer and nut for fastening to the mounting and two nuts and a lock washer for the engine foot fastening. The Height Adjusters allow ease of aligning when installing equipment. When installing secure the bolt into the mounting, it is recommended to apply thread lock adhesive. For optimum solutions where close coupling tolerances are required, allow the mountings to settle for 48 hours before final alignment of the engine installation. Notes: For all applications with Thrust loads HAD type height adjusters must be used. Table to show maximum height. On request, Trelleborg AVS application engineers can make the necessary calculations for the Anti Vibration and Shock Systems using Vibration Software.
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