MEGI Compression/Shear Mounts are the preferred choice for resilient support of small- to medium-sized units in all areas of machine, equipment and engine construction. Numerous sizes and types with different metal fittings make possible a wide variety of designs and sundry applications.
MEGI Compression/Shear Mounts | from kg... | to kg... | Natural frequency... | |
Type A, B, C | Standard mounts suitable for normal requirement profiles. Can withstand pressure and shear stressing. Various metal connections for more design freedom. |
5 | 1700 | 300 |
Type AK | For large masses with small dimensions. | 30 | 450 | 300 |
Type D, S | For attachmentfree setup of assemblies with low excitation forces. | 90 | 400 | 300 |
MEGI Railstrips Are ideal for suspension of heavy and extra-heavy machines, equipment and foundations. The range of products is perfectly tailored to meet all practical requirements and enables users to develop their own individual solutions. The railstrip lengths can be adapted to different requirements. As a result, the railstrips are ideal for mountings with different loads at individual bearing points.
MEGI Railstrips | from kg... | to kg... | Natural frequency... | |
Type 1. 2 | Universal mounts for very large masses. Load adaptation achieved by correct selection of railstrip lengths. Ideal for mounting applications involving asymmetrical positioning of the center of gravity. |
160 | 4000 | 300 |
Angle Mount | Same spring characteristics in vertical and lateral directions. Low natural vibration values. Very good stability of masses mounted in traverse direction. |
250 | 900 | 250 |
U-Shape Mount | Moderate natural vibration values in vertical direction combined with very good lateral stability. Load adjusted by means of rail length selection. Thus well suited for bearings with asymmetrical positioning of center of gravity. |
20 | 150 | 360 |
MEGI Buffers | |
Parabola Spring | Buffer mount with gently sloped characteristic curve. Large deflection and high end forces for good energy absorption. |
Impact Mount | Buffer with moderate spring travel for absorption of moderate energy levels. |
Buffer Railstrips | Buffer element for absorption of large amounts of energy with high end forces. |
MEGI Combi Mounts | from kg... | to kg... | Natural frequency... | |
With Compression/Shear Mount | Same spring characteristics in vertical and lateral directions. Low natural vibration frequencies. Very good stability of mounted mass in transverse direction. |
100 | 400 | 220 |
With Railstrip | Same spring characteristics in vertical and lateral direction. Low natural vibration values. Very good stability of mounted mass in transverse direction. |
750 | 4500 | 220 |
MEGI Components (different variations) | from kg... | to kg... | Natural frequency... | |
Dome Mounts | Spring mounts with high stress resistance. Nearly same spring values in vertical and lateral direction. | 150 | 2000 | 430 |
Heavy-duty Mounts | Different spring values in the three spatial directions. | 70 | 1000 | 430 |
Instrument Mounts | For mounting small masses with good transverse stability. | 10 | 220 | 260 |
Bell Mounts | Breakaway-proof mounts for absorption of statically acting tensile forces. | 10 | 70 | 450 |
Ceiling Mounts | Breakaway-proof mount for absorption of statically acting tensile forces. Suitable for rough suspensions. |
20 | 140 | 350 |
Shear Mounts | For mounting small masses with low natural frequencies. | 8 | 25 | 200 |
Hydromount | Mounting component with integrated hydraulic damping. Also suitable for absorption of impact energy. |
25 | 150 | 370 |
Flange Mount | With integrated end stops for high resistance to impact stress in press and pull direction. | 60 | 240 | 300 |
Ring Mount, Torsion Bush | Primarily for torsional stress. Also suitable for axial stress. | 40 | 190 | 670 |
Torsion Mount | Maintenance-free, spring-lock articulated mount. Easy to attach. | 80 | 200 | 770 |
Air Bearing | For very low natural frequencies, with high damping and automatic level control. | 700 | 2000 | 50 |
Construction
The constructive principle: A binding system is attached to the metal components, and the metal components are then inserted into the vulcanization mold. The rubber is injected and vulcanized in the heated mold.
Elastomere
The shape and material of the elastomer spring body comply with an exactly defined spring behavior. Continental offers a practice-oriented range composed of NR, CR and acrylonitrile polymers with various hardness values.
Natural rubber (NR) is preferred for anti-vibration applications. It stands out for its high rebound elasticity and low creep values. NR is not resistant to continuous oil exposure. The occasional use of small amounts of oil will not affect the function and service life.
Chloroprene rubber (CR) is oil resistant to a certain extent and is the preferred choice for applications in which enhanced weathering resistance is required. Acrylonitrile-butadiene rubber (NBR) is used for applications requiring oil resistance.
Properties of different elastomers
Elastomer | Natural rubber | Chloropren-Kautschuk | Acrylonitrile-butadiene rubber |
Symbol as per DIN ISO 1629 | NR | CR | NBR |
Hardness range as per DIN 53 505 Shore A | 45 ... 80 | 45 ... 80 | 45 ... 80 |
Tensile strength For the most favorable hardness range as per DIN 53 504 N/mm2 | 25 | 18 | 18 |
Elongation at tear for the most favorable hardness range as per DIN 53 504 % | 500 | 350 | 350 |
Rebound resilience as per DIN 53 512 | excellent | very good | very good |
Damping as per DIN 53 513 | low | medium | medium |
Temperature application range [°C] | -50 ... 70 | -30 ... 90 | -25 ... 80 |
Compression set as per DIN 53 517 | low | low | low |
Resistance to aging as per DIN 53 578 | moderate | very good | good |
Resistance to weathering as per DIN 53 578 | moderate | very good | moderate |
Electric properties | Antistatic insulation for low hardness levels, antistatic to conductive for higher hardness levels | Antistatic insulation for low hardness levels, antistatic to conductive for higher hardness levels | Antistatic insulation for low hardness levels, antistatic to conductive for higher hardness levels |
Resistance to water | good | moderate | good |
Resistance to alkalis | good | good | good |
Resistance to acids | good | good | good |
Resistance to oil, greases | minor | moderate | good |
Metal parts
The metal parts are adapted to provide the properties required in actual practice. Easy to attach, they conduct and distribute the load in the elastomer spring body.
The metal surfaces are protected from corrosion by means of painting or electrolytic zinc extraction with follow-up passivation.
Bonding
Bonding between elastomer spring bodies and metal parts is effected by bonding agents employed at the time of vulcanization. The two-layer systems used - consisting of a primer and a cover coat - guarantee a strong, corrosion-resistant bond.
Modern processes for pretreating metal parts and vulcanization, along with constant quality inspections at all stages of processing, ensure a uniformly high standard.