GN 57.2-ARetaining magnets

with 1 female thread

rectangular-shaped, with rubber jacket

GN 57.2-A

Catalogue
l1
d1
b1
b2
d2
h1
h2
h3
l2
l3
m
Nominal magnetic forces FH1 in N (no air gap)
GN 57.2-HF-70-M5-A-SW
70
M 5
50
43.5
12
13
8
6
61.5
20.5
27.5
45
GN 57.2-ND-70-M5-A-SW
70
M 5
50
43.5
12
13
8
6
61.5
20.5
27.5
290

Types

  • Type A: with 1 female thread
  • Type B: with 2 female threads
  • Type D: with 2 bores

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

The retaining magnets GN 57.2 with rubber jacket form a system together with the steel part that is especially strong, shielding the magnet, increasing 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.

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