Metric Size, Steel
Retaining Magnet Assemblies

Disc-Shaped, With Thru Hole
GN 50.4

RoHS Compliant


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Specification
Information

Housing: Steel, zinc plated
Magnet: Hard ferrite SrFe (HF type)

Shipping

GN 50.4 magnets are a shielded magnetic assembly.
To ensure that the magnetic forces are not impaired, the mounting screws must be made of non-magnetic material.
Type HF temperature resistant to 390°F (200°C),
See also Types of Retaining Magnet Assemblies, Materials Composition of Retaining Magnet Assemblies, and Pulling Force Information for Retaining Magnet Assemblies.

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 HF Type

Dimensions in:

millimeters
(inches)

Part Number d1
Dia.
d1
tolerance
d2 d3 d4 d5 h
Thickness
h
tolerance
t Nominal Pulling Forces [N]
50.4-HF-16
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16
(.63)
+/- .1
(+/- .004)
3.5
(.14)
-- 7.5
(.30)
-- 4.5
(.18)
+ .2 / -.1
(+ .008/- .004)
-- 14
50.4-HF-20
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20
(.79)
+/- .1
(+/- .004)
4.1
(.16)
-- 10.5
(.41)
-- 6
(.24)
+ .2 / -.1
(+ .008/- .004)
-- 27
50.4-HF-25
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25
(.98)
+/- .1
(+/- .004)
5.5
(.22)
-- 12
(.47)
-- 7
(.28)
+ .3 / -.1
(+ .012/- .004)
-- 36
50.4-HF-32
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32
(1.26)
+/- .1
(+/- .004)
5.5
(.22)
-- 12
(.47)
-- 7
(.28)
+ .3 / -.1
(+ .012/- .004)
-- 72
50.4-HF-40
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40
(1.57)
+ .2 / -.1
(+ .008/- .004)
5.5
(.22)
-- 13.5
(.53)
-- 8
(.31)
+ .4 / -.1
(+ .016/- .004)
-- 90
50.4-HF-50
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50
(1.97)
+ .2 / -.1
(+ .008/- .004)
-- 8.5
(.33)
-- 22
(.87)
10
(.39)
+ .5 / -.1
(+ .020/- .004)
8.5
(.33)
180
50.4-HF-63
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63
(2.48)
+ .3 / -.1
(+ .012/- .004)
-- 8.5
(.33)
-- 24
(.94)
14
(.55)
+ .5 / -.1
(+ .020/- .004)
12
(.47)
290
50.4-HF-80
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80
(3.15)
+ .5 / -.1
(+ .020/- .004)
-- 8.5
(.33)
-- 11.5
(.45)
18
(.71)
+ .5 / -.1
(+ .020/- .004)
15
(.59)
540
50.4-HF-100
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100
(3.94)
+ .5 / -.1
(+ .020/- .004)
-- 10.5
(.41)
-- 34
(1.34)
22
(.87)
+ .5 / -.1
(+ .020/- .004)
18
(.71)
680