Standard_Parts_Catalogue

Page 2049 | 3.9 Holding with Magnets 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 GN 57.2 Retaining Magnets Rectangular-Shaped, with Rubber Jacket The retaining magnets GN 57.2 with rubber jacket form a system together with the steel part that is especially strong, shielding the magnet, incre- asing the depth of its effect and optimally concentrating the magnetic flux on the rubberized magnetic surfaces. This makes these magnets particularly well suited for use on surfaces that may have thick coats of paint or feature rounded or uneven shapes. The rubber protects sensitive surfaces from being damaged by the magnet and also delivers a high friction coefficient, resulting in high lateral displacement forces. see also... • More Information to Retaining Magnets → Page 2028 Information • Steel part Zinc plated • Materials of the magnet: - - Hard ferrite HF Temperature resistant up to 200 °C - - NdFeB ND Neodymium, iron, boron Temperature resistant up to 80 °C • Rubber jacket Elastomer (TPE) ≈ 50 Shore A (Magnetic surface) ≈ 90 Shore A (Mounting surface) Black SW • Elastomer Characteristics → Page 2158 • RoHS Specification 1 5 4 Type A With 1 internal thread B With 2 internal threads D With 2 bores 2 3 l 1 d 1 b 1 b 2 d 2 h 1 h 2 h 3 l 2 l 3 m Type A / B Type D 70 M 5 5,5 50 43,5 12 13 8 6 61,5 20,5 27,5 l 1 Nominal magnetic forces F H1 in N (no air gap) Nominal magnetic forces F H2 in N (6 mm air gap) HF ND HF ND Type A Type B Type D Type A Type B Type D Type A Type B Type D Type A Type B Type D 70 45 45 45 290 290 290 16 11 14 68 72 70 1 Material of the magnet 2 l 1 3 d 1 4 Type 5 Color How to order 1 2 3 4 5 GN57.2-HF-70-5,5-D-SW