The elastomer spider is the connecting and damping element of a flexible coupling. Its function is to absorb vibration, to reduce shock loads, to compensate for slight misalignment and to transmit torque between shafts safely and efficiently. By virtue of its elasticity and mechanical strength, it contributes to extending the service life of motors, gearboxes, pumps, fans, compressors and other rotating equipment.
OSN offers an extensive range of elastomer spiders for industrial couplings compatible with the main systems on the market, manufactured in various materials and hardness grades in order to meet the specific requirements of each installation.
Spiders are manufactured in NBR and polyurethane, in different hardness grades and with differing mechanical characteristics in order to suit each application. NBR versions are distinguished by their high elasticity and by their good resistance to petroleum-based oils, to numerous chemical agents and to applications requiring a high damping capacity. Specific formulations for elevated working temperatures are also available. Polyurethane (PUR) versions offer excellent mechanical strength, high torque transmission, good wear resistance and an extended service life. They are supplied in several hardness grades, from standard compounds through to high-rigidity versions for applications with greater precision and load requirements.
They are available in different hardness grades with identifying colours, including versions in 85, 90, 92, 96 and 98 Shore A, together with 64 Shore D compounds for high-rigidity applications.
OSN provides technical catalogues containing detailed information on dimensions, materials, hardness grades, working temperatures, torque transmission values and equivalences for the main series of industrial couplings.
