Elastomer round cords
Seals and damping elements
Elastomer round cords are extruded solid profiles of circular section, laid into grooves as continuous stock or cut to length to form sealing rings. This category holds 86 versions to DIN ISO 3302-1 tolerance class E1, in diameters from 1.5 to 13 mm, supplied on rolls of 5 m and 10 m.
Selection follows cord diameter, elastomer type and roll length. The range covers NBR as well as EPDM at 70 Shore A, plus FKM at 75 Shore A, rated from -15 to +200 °C. Intermediate sizes such as 2.62, 3.53 and 5.33 mm match common O-ring cord thicknesses.
Round cord serves in machine building plus jig making, sealing covers, flaps and housings whose perimeter falls outside standard O-ring sizes. The seal is cut to length from the roll and closed into a ring inside the groove. NBR as well as EPDM at 70 Shore A suit general plant plus ventilation equipment, while FKM at 75 Shore A covers positions up to +200 °C.
