Global Elements Solutions

Neodymium Ring Magnets

Neodymium ring magnets are high-performance rare-earth magnets with a circular shape and a central hole, offering exceptional magnetic strength and versatility. They are widely used in motors, sensors, loudspeakers, and industrial applications where strong and reliable magnetism is required. With various sizes, grades, and coatings available, our neodymium ring magnets provide excellent durability and corrosion resistance. Whether for engineering projects, electronics, or custom applications, these magnets deliver powerful performance in a compact design.

inquiry

Description:

GESmaterials offers a wide range of neodymium ring magnets from grade N35 up to the high-strength N52. We carry many diameter and thickness options to fit different applications. For easy installation, our countersunk ring magnets can be directly mounted with screws, making them suitable for both professional use and DIY projects.
All ring magnets are organized by diameter and then thickness, from the smallest to the largest.

Specifications:

  • Material: Neodymium Iron Boron (NdFeB)
  • Shape: Ring (Circular with a Center Hole)
  • Tolerance: ±0.004″ (0.1mm) for all dimensions
  • Grade: N35 N38 N40 N42 N45 N48 N50 N52
  • Plating/Coating: nickel (Ni-Cu-Ni), black nickel, gold, rubber, and plastic. （Our standard finish is a triple-layer Ni-Cu-Ni coating for corrosion protection and a smooth silver surface.）
  • Magnetization Direction:

      Through-thickness axial polarization

 

      Through-diameter diametric polarization

Common Applications:

  • Motors & Generators – Essential for high-performance electric motors and alternators.
  • Electronics & Sensors – Used in magnetic sensors, speakers, and microphones.
  • Industrial & Mechanical Uses – Magnetic couplings, holding systems, and filtration applications.
  • DIY & Engineering Projects – Perfect for crafts, scientific experiments, and prototype designs.

Neodymium Ring Magnets

The most popular grades for Neodymium Ring Magnets are N42 & N52. Regular neodymium ring magnets:
Part No.GradeSize
R211N421/8″ od x 1/16″ id x 1/16″ thick
R212N421/8″ od x 1/16″ id x 1/8″ thick
R211N521/8″ od x 1/16″ id x 1/16″ thick
R311N423/16″ od x 1/16″ id x 1/16″ thick
R313N423/16″ od x 1/16″ id x 3/16″ thick
R411N421/4″ od x 1/16″ id x 1/16″ thick
R412N421/4″ od x 1/16″ id x 1/8″ thick
R412N521/4″ od x 1/16″ id x 1/8″ thick
R421N421/4″ od x 1/8″ id x 1/16″ thick
R422N421/4″ od x 1/8″ id x 1/8″ thick
R422N521/4″ od x 1/8″ id x 1/8″ thick
R424N421/4″ od x 1/8″ id x 1/4″ thick
R424DIAN421/4″ od x 1/8″ id x 1/4″ thick
R428N421/4″ od x 1/8″ id x 1/2″ thick
R6036DIAN423/8″ od x 3/32″ id x 3/8″ thick
R621N423/8″ od x 1/8″ id x 1/16″ thick
R622N423/8″ od x 1/8″ id x 1/8″ thick
R624N423/8″ od x 1/8″ id x 1/4″ thick
R636N423/8″ od x 3/16″ id x 3/8″ thick
R8201N421/2″ od x 1/8″ id x 1/32″ thick
R821N421/2″ od x 1/8″ id x 1/16″ thick
R822N421/2″ od x 1/8″ id x 1/8″ thick
R822N521/2″ od x 1/8″ id x 1/8″ thick
R824N421/2″ od x 1/8″ id x 1/4″ thick
R828N421/2″ od x 1/8″ id x 1/2″ thick
R828DIAN421/2″ od x 1/8″ id x 1/2″ thick
R834DIAN421/2″ od x 3/16″ id x 1/4″ thick
R841N421/2″ od x 1/4″ id x 1/16″ thick
R842N421/2″ od x 1/4″ id x 1/8″ thick
R842N521/2″ od x 1/4″ id x 1/8″ thick
R844N421/2″ od x 1/4″ id x 1/4″ thick
R844N521/2″ od x 1/4″ id x 1/4″ thick
R848N421/2″ od x 1/4″ id x 1/2″ thick
R84X0N421/2″ od x 1/4″ id x 1″ thick
RA22N425/8″ od x 1/8″ id x 1/8″ thick
RA24N425/8″ od x 1/8″ id x 1/4″ thick
RA2ADIAN425/8″ od x 1/8″ id x 5/8″ thick
RC21N423/4″ od x 1/8″ id x 1/16″ thick
RC22N423/4″ od x 1/8″ id x 1/8″ thick
RC44N423/4″ od x 1/4″ id x 1/4″ thick
RC44N523/4″ od x 1/4″ id x 1/4″ thick
RC48N423/4″ od x 1/4″ id x 1/2″ thick
RC4CDIAN423/4″ od x 1/4″ id x 3/4″ thick
RC4CN523/4″ od x 1/4″ id x 3/4″ thick
RC62N423/4″ od x 3/8″ id x 1/8″ thick
RC86N423/4″ od x 1/2″ id x 3/8″ thick
RE44N427/8″ od x 1/4″ id x 1/4″ thick
RX024DIAN421″ od x 1/8″ id x 1/4″ thick
RX032N421″ od x 3/16″ id x 1/8″ thick
RX038DCBN421″ od x 0.195″ id x 0.375″ id x 1/2″ thick, Sized to accept #10 screw Reversible
RX038DCBN521″ od x 0.195″ id x 0.375″ id x 1/2″ thick, Sized to accept #10 screw Reversible
RX04X0N421″ od x 1/4″ id x 1″ thick
RX04X0DIAN421″ od x 1/4″ id x 1″ thick
RX054N421″ od x 5/16″ id x 1/4″ thick
RX054EN421″ od x 5/16″ id x 1/4″ thick, Epoxy Coated
RX054N521″ od x 5/16″ id x 1/4″ thick
RX068N421″ od x 3/8″ id x 1/2″ thick
RX082N421″ od x 1/2″ id x 1/8″ thick
RX088N421″ od x 1/2″ id x 1/2″ thick
RX08X0N421″ od x 1/2″ id x 1″ thick
RX424N421 1/4″ od x 1/8″ id x 1/4″ thick
RX4C2N421 1/4″ od x 3/4″ id x 1/8″ thick
RX822N421 1/2″ od x 1/8″ id x 1/8″ thick
RX828N421 1/2″ od x 1/8″ id x 1/2″ thick
RX84X8N421 1/2″ od x 1/4″ id x 1 1/2″ thick
RX84X8DIAN421 1/2″ od x 1/4″ id x 1 1/2″ thick
RX864N421 1/2″ od x 3/8″ id x 1/4″ thick
RX884N421 1/2″ od x 1/2″ id x 1/4″ thick
RX8C2N421 1/2″ od x 3/4″ id x 1/8″ thick
RX8C4N421 1/2″ od x 3/4″ id x 1/4″ thick
RX8CCN421 1/2″ od x 3/4″ id x 3/4″ thick
RXC48N421 3/4″ od x 1/4″ id x 1/2″ thick
RXC88N421 3/4″ od x 1/2″ id x 1/2″ thick
RY046N422″ od x 1/4″ id x 3/8″ thick
RY04X0N422″ od x 1/4″ id x 1″ thick
RY04Y0N422″ od x 1/4″ id x 2″ thick
RY04Y0DIAN422″ od x 1/4″ id x 2″ thick
RY084N422″ od x 1/2″ id x 1/4″ thick
RY0X04N422″ od x 1″ id x 1/4″ thick
RZ048N423″ od x 1/4″ id x 1/2″ thick (Ground Shipping Only)
RZ0X84N423″ od x 1 1/2″ id x 1/4″ thick
RZ0Y0X0N423″ od x 2″ id x 1″ thick

Inquiry to GES Materials

Please describe the product(s) for which you would like more information/quotation.Items marked with an asterisk(*) are required.