Globa 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.

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Description:

Neodymium (NdFeB) ring magnets are powerful rare-earth magnets with a circular shape and a central hole. They offer high magnetic strength and versatility and are commonly used in motors, sensors, loudspeakers, and various industrial applications.

Specifications:

  • Material: Neodymium Iron Boron (NdFeB)
  • Shape: Ring (Circular with a Center Hole)
  • Tolerance: ±0.004″ for all dimensions
  • Grade: N52 (one of the strongest commercially available grades)
  • Plating/Coating: Nickel (Ni-Cu-Ni) or Epoxy (for corrosion resistance)
  • Magnetization Direction: Axial or Diametrical
  • Maximum Operating Temperature: ~80°C (for standard N-grade magnets)

Key Features:

  • High Magnetic Strength – N52 grade provides a strong magnetic field in a compact size.
  • Easy Mounting – The central hole allows secure attachment with screws, bolts, or rods.
  • Corrosion Resistance – Coated with Nickel, Zinc, or Epoxy for durability and rust prevention.
  • Wide Applications – Used in motors, electronics, medical devices, and industrial equipment.

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.GradeSizeInquiry
R211N421/8″ od x 1/16″ id x 1/16″ thickInquiry
R212N421/8″ od x 1/16″ id x 1/8″ thickInquiry
R211N521/8″ od x 1/16″ id x 1/16″ thickInquiry
R311N423/16″ od x 1/16″ id x 1/16″ thickInquiry
R313N423/16″ od x 1/16″ id x 3/16″ thickInquiry
R411N421/4″ od x 1/16″ id x 1/16″ thickInquiry
R412N421/4″ od x 1/16″ id x 1/8″ thickInquiry
R412N521/4″ od x 1/16″ id x 1/8″ thickInquiry
R421N421/4″ od x 1/8″ id x 1/16″ thickInquiry
R422N421/4″ od x 1/8″ id x 1/8″ thickInquiry
R422N521/4″ od x 1/8″ id x 1/8″ thickInquiry
R424N421/4″ od x 1/8″ id x 1/4″ thickInquiry
R424DIAN421/4″ od x 1/8″ id x 1/4″ thickInquiry
R428N421/4″ od x 1/8″ id x 1/2″ thickInquiry
R6036DIAN423/8″ od x 3/32″ id x 3/8″ thickInquiry
R621N423/8″ od x 1/8″ id x 1/16″ thickInquiry
R622N423/8″ od x 1/8″ id x 1/8″ thickInquiry
R624N423/8″ od x 1/8″ id x 1/4″ thickInquiry
R636N423/8″ od x 3/16″ id x 3/8″ thickInquiry
R8201N421/2″ od x 1/8″ id x 1/32″ thickInquiry
R821N421/2″ od x 1/8″ id x 1/16″ thickInquiry
R822N421/2″ od x 1/8″ id x 1/8″ thickInquiry
R822N521/2″ od x 1/8″ id x 1/8″ thickInquiry
R824N421/2″ od x 1/8″ id x 1/4″ thickInquiry
R828N421/2″ od x 1/8″ id x 1/2″ thickInquiry
R828DIAN421/2″ od x 1/8″ id x 1/2″ thickInquiry
R834DIAN421/2″ od x 3/16″ id x 1/4″ thickInquiry
R841N421/2″ od x 1/4″ id x 1/16″ thickInquiry
R842N421/2″ od x 1/4″ id x 1/8″ thickInquiry
R842N521/2″ od x 1/4″ id x 1/8″ thickInquiry
R844N421/2″ od x 1/4″ id x 1/4″ thickInquiry
R844N521/2″ od x 1/4″ id x 1/4″ thickInquiry
R848N421/2″ od x 1/4″ id x 1/2″ thickInquiry
R84X0N421/2″ od x 1/4″ id x 1″ thickInquiry
RA22N425/8″ od x 1/8″ id x 1/8″ thickInquiry
RA24N425/8″ od x 1/8″ id x 1/4″ thickInquiry
RA2ADIAN425/8″ od x 1/8″ id x 5/8″ thickInquiry
RC21N423/4″ od x 1/8″ id x 1/16″ thickInquiry
RC22N423/4″ od x 1/8″ id x 1/8″ thickInquiry
RC44N423/4″ od x 1/4″ id x 1/4″ thickInquiry
RC44N523/4″ od x 1/4″ id x 1/4″ thickInquiry
RC48N423/4″ od x 1/4″ id x 1/2″ thickInquiry
RC4CDIAN423/4″ od x 1/4″ id x 3/4″ thickInquiry
RC4CN523/4″ od x 1/4″ id x 3/4″ thickInquiry
RC62N423/4″ od x 3/8″ id x 1/8″ thickInquiry
RC86N423/4″ od x 1/2″ id x 3/8″ thickInquiry
RE44N427/8″ od x 1/4″ id x 1/4″ thickInquiry
RX024DIAN421″ od x 1/8″ id x 1/4″ thickInquiry
RX032N421″ od x 3/16″ id x 1/8″ thickInquiry
RX038DCBN421″ od x 0.195″ id x 0.375″ id x 1/2″ thick, Sized to accept #10 screw ReversibleInquiry
RX038DCBN521″ od x 0.195″ id x 0.375″ id x 1/2″ thick, Sized to accept #10 screw ReversibleInquiry
RX04X0N421″ od x 1/4″ id x 1″ thickInquiry
RX04X0DIAN421″ od x 1/4″ id x 1″ thickInquiry
RX054N421″ od x 5/16″ id x 1/4″ thickInquiry
RX054EN421″ od x 5/16″ id x 1/4″ thick, Epoxy CoatedInquiry
RX054N521″ od x 5/16″ id x 1/4″ thickInquiry
RX068N421″ od x 3/8″ id x 1/2″ thickInquiry
RX082N421″ od x 1/2″ id x 1/8″ thickInquiry
RX088N421″ od x 1/2″ id x 1/2″ thickInquiry
RX08X0N421″ od x 1/2″ id x 1″ thickInquiry
RX424N421 1/4″ od x 1/8″ id x 1/4″ thickInquiry
RX4C2N421 1/4″ od x 3/4″ id x 1/8″ thickInquiry
RX822N421 1/2″ od x 1/8″ id x 1/8″ thickInquiry
RX828N421 1/2″ od x 1/8″ id x 1/2″ thickInquiry
RX84X8N421 1/2″ od x 1/4″ id x 1 1/2″ thickInquiry
RX84X8DIAN421 1/2″ od x 1/4″ id x 1 1/2″ thickInquiry
RX864N421 1/2″ od x 3/8″ id x 1/4″ thickInquiry
RX884N421 1/2″ od x 1/2″ id x 1/4″ thickInquiry
RX8C2N421 1/2″ od x 3/4″ id x 1/8″ thickInquiry
RX8C4N421 1/2″ od x 3/4″ id x 1/4″ thickInquiry
RX8CCN421 1/2″ od x 3/4″ id x 3/4″ thickInquiry
RXC48N421 3/4″ od x 1/4″ id x 1/2″ thickInquiry
RXC88N421 3/4″ od x 1/2″ id x 1/2″ thickInquiry
RY046N422″ od x 1/4″ id x 3/8″ thickInquiry
RY04X0N422″ od x 1/4″ id x 1″ thickInquiry
RY04Y0N422″ od x 1/4″ id x 2″ thickInquiry
RY04Y0DIAN422″ od x 1/4″ id x 2″ thickInquiry
RY084N422″ od x 1/2″ id x 1/4″ thickInquiry
RY0X04N422″ od x 1″ id x 1/4″ thickInquiry
RZ048N423″ od x 1/4″ id x 1/2″ thick (Ground Shipping Only)Inquiry
RZ0X84N423″ od x 1 1/2″ id x 1/4″ thickInquiry
RZ0Y0X0N423″ od x 2″ id x 1″ thickInquiry

 We are dedicated to supplying high-quality, stable products, including refractory metals, deposition materials (sputtering target & evaporation materials), rare earth elements, permanent magnets, and advanced ceramic products.

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E-mail：sales@gesmaterials.com

560 17th St, Oakland, CA 94612, USA

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