GN 50.5 Retaining Magnets Steel, Disk-Shaped, with Tapped Hole


Product description


GN 50.5 retaining magnets, in combination with the steel housing and the plastic ring or plastic cover, form a system that shields and strengthens the magnet for optimal transmission of the magnetic flux onto the magnetic surface.

For diameter d1 ≥ 50 mm, the magnetic surface is provided with a full-surface plastic cover.

To ensure that the magnetic properties are not negatively impaired, the mounting screws should be made of a non-magnetic material, such as stainless steel, brass or plastic.


Steel, zinc plated

Magnet material
Neodymium, iron, boron
Temperature resistant up to 176 °F (80° C)

Plastic cover
Technopolymer (Polyamide PA)

RoHS compliant


Magnet holding disks GN 70
Self-adhesive disks GN 70.1
Rubber caps GN 70.2

Technical drawing

Hide technical drawing
GN 50.5 Steel Retaining Magnets, Disk-Shaped, with Tapped Hole sketch

Part Options / Table

Show / Hide columns


Dimensions in: Inch | Metric
d3htNominal magnetic forces
0.394 ±0.004M 30.180.177 ±0.0040.064.27 lbf (19 N)
0.512 ±0.004M 30.180.177 ±0.0040.068.99 lbf (40 N)
0.630 ±0.004M 30.240.177 ±0.0040.0616.86 lbf (75 N)
0.787 ±0.004M 40.240.236 ±0.0040.1023.60 lbf (105 N)
0.984 ±0.004M 40.180.276 ±0.0080.1235.97 lbf (160 N)
1.260 ±0.004M 50.220.276 ±0.0080.1274.19 lbf (330 N)
1.575 ±0.004M 50.410.315 ±0.0080.24112 lbf (500 N)
1.850 +0.008/-0.004M 80.270.362 +0.008/-0.0120.24166 lbf (740 N)
1.969 ±0.004M 80.410.394 ±0.0080.22180 lbf (800 N)
2.480 ±0.004M 100.460.551 ±0.0080.33247 lbf (1100 N)
2.953 -0.012/-0.020M 100.460.591 ±0.0080.33393 lbf (1750 N)

Build & Price

3D Product Configurator
Magnet material

Diameter d1

Selected Part

Total US Dollars (net)
Call / Email for Delivery Time
Please note our quantity discounts (US Dollars).
≥ 100$3.17
Prop 65: Not compliant
Cancer and Reproductive Harm -
RoHS: Compliant
This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).
Weight: 0.004 lbs
If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351
All Prices are in US Dollars. Taxes Not Included.

CAD Download

Other Data Formats

Email CAD File

To receive an email with a CAD download without creating an account, please enter your e-mail address. Max of 3 CAD files per day unless you create an account.

Please enter the code above.

CAD Download Tutorial About CAD Downloads
Save as Favorites

Please enter the code above.

Need Help?

Our service team is available from Monday to Friday between 7:30 AM and 5:00 PM Central Time: 800-877-8351

Special Requests | Contact our sales team

GN 50.5-ND-50GN 50.5-ND-10GN 50.5-ND-40GN 50.5-ND-32GN 50.5-ND-75GN 50.5-ND-25GN 50.5-ND-20GN 50.5-ND-16GN 50.5-ND-47GN 50.5-ND-63GN 50.5-ND-13

This could also be interesting...

An error has occurred!
We have received your callback request and will contact you soon.
JW Winco Services

Our service team is available from Monday to Friday between 7:30 AM and 5:00 PM Central Time

Request Callback
Your Contact

You are looking for a Winco partner near you? Please select the country.