Standard_Parts_Catalogue

Page 1528 | 3.4 Installing, Lifting, Damping with Leveling Feet, Lifting Gear and Rubber Elements GN 253 Buffers Blunt Conical Shape, Steel 1 d 1 2 d 2 3 Length l 4 Hardness How to order (With threaded stud) 1 2 3 4 GN253-38-M8-30-55 1 d 1 2 d 2 4 Hardness How to order (With internal thread) 1 2 4 GN253-19-M5-55 1 2 3 d 1 d 2 Length l d 3 h s t Spring rate ≈ in N/mm Hardness 55 Max. load in N Hardness 55 Max. travel ≈ in mm Hardness 55 19 M  5 6 10 20 12   16   2  5  28  110  4    25 M  6 8 12 25 16,5 20,5 2  6  82  430  5,25 32 M  8 10 16 30 21   26   2  8 140  910  6,5  38 M  8 10 16 30 24,5 32   2  8 125 1200  9,5  50 M 10 12 20 40 32   43   2 10 155 1620 10,5  Buffers GN 253 are used as end stops or setup elements, e.g. for con- veyors. They absorb vibrations and have a damping effect. see also... • Buffers GN 352 / GN 452 → Page 1531 • Buffers GN 353 → Page 1526 • Buffers GN 453 → Page 1527 Information • Rubber NBR (Perbunan ® ) - - Black - - Vulcanized to the cover plate - - Temperature resistant up to 80 °C - - Hardness Shore A ±5 Soft * 40 Medium 55 Hard * 70 • Cover plates, threaded bushings, threaded studs Steel Zinc plated, blue passivated • Elastomer Characteristics → Page 2158 • RoHS Specification 4 * not available from stock, requires a minimum order quantity