Standard_Parts_Catalogue

Page 2055 | 3.9 Holding with Magnets 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 Retaining Magnets Rod-Shaped, with Internal Thread, with Fitting Tolerance GN 54.2 1 Material of the magnet 2 d 1 3 d 2 How to order 1 2 3 GN54.2-ND-20-M6 2 3 d 1 h6 d 2 h k * t Nominal magnetic forces in N SC ND  6 M 3 20 ±0,2 1,5 5   8  10  8 M 3 20 ±0,2 1,5 5  22  25 10 M 4 20 ±0,2 2 7  40  45 13 M 4 20 ±0,2 2,5 7  60  70 16 M 4 25 ±0,2 3 8 125 150 20 M 6 25 ±0,2 4 6 250 280 25 M 6 35 ±0,3 5 8 400 450 32 M 6 40 ±0,3 6 6 600 700 Retaining magnets GN 54.2 are combined with a brass housing, the iron poles and the plastic insulation into a system that shields and conside- rably strengthens the magnet for optimal transmission of the magnetic flux onto the magnetic surface. This special design is also known by the name “sandwich magnet” or “pole shoe magnet”. * Mounting these retaining magnets directly in steel components will create a magnetic shortcircuit which reduces the retaining power by as much as 15%. To avoid this, the distance k should be maintained bet- ween the brass housing and steel part or installation hole. see also... • More Information to Retaining Magnets → Page 2028 • Retaining Magnets GN 52.2 (with Internal Thread) → Page 2057 • Retaining Magnets GN 52.3 (with Internal Thread) → Page 2058 • Stainless Steel Retaining Magnets GN 52.5 (with Threaded Stud) → Page 2061 Information • Housing Brass • Materials of the magnet: - - SmCo SC Samarium, cobalt Temperature resistant up to 200 °C - - NdFeB ND Neodymium, iron, boron Temperature resistant up to 80 °C • Identification of ND: Magnetic area colored blue • ISO Fundamental Tolerances → Page 2151 • RoHS Specification 1 • Holding Disks GN 70 → Page 2072 • Adhesive Disks GN 70.1 → Page 2073 • Rubber Caps GN 70.2 → Page 2074 Accessories • Housing in stainless steel • Pols in stainless steel • Higher magnetic forces • Temperature resistance up to 280 °C On request