Standard_Parts_Catalogue

Page 2071 | 3.9 Holding with Magnets 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 Raw magnets GN 55.4 are unshielded block-shaped magnets. Owing to their vast range of different magnet materials and sizes, they are suitable for virtually universal use. They are mostly attached by gluing. When used without air gap, individual raw magnets always have lower magnetic forces than a magnet system in which shielding and magne- tic return enormously intensify the force acting at the adhesion surface. Depending on the air gap between magnet and mating component, in- dividual raw magnets - unlike magnet systems - can have substantially higher magnetic forces. In the event that no suitable retaining magnets / magnet systems are available, raw magnets may be used in combination with appropriate hol- ding constructions to build up highly specific magnet systems. see also... • More Information to Retaining Magnets → Page 2028 Information GN 55.4 Raw Magnets Block-Shaped 1 Material of the magnet 2 Length l 3 b 4 h How to order 1 2 3 4 GN55.4-ND-18-16,5-4 • Materials of the magnet: - - SmCo SC Samarium, cobalt Plain Temperature resistant up to 200 °C - - NdFeB ND Neodymium, iron, boron Nickel-plated Temperature resistant up to 80 °C • RoHS Specification 1 • In other dimensions • Made of hard ferrite (HF) On request 2 3 4 Length l ±0,1 b ±0,1 h ±0,1 Nominal magnetic forces in N Packaging units SC Sm Co ND Nd Fe B  7,5  4   1,5  3,4   5 10  7,5  6   2    5     8 10 10    7,5 2    7,5  11 10 12    9,5 2,5 11    17  5 16   12,5 2,5 15    24  5 18   16,5 4   29    50  4 26   20,3 5   51    77  2 33   26,3 6,5 85   125  1 b h l