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Ring Magnets

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Ring Magnets

55 products

Showing 1 - 24 of 55 products

Ring magnets offer engineers a compact, circular design that delivers both strength and precision for demanding applications. Their compact circular design makes them ideal for motors, magnetic couplings, precision sensors, and other high-performance assemblies. Our neodymium ring magnets deliver maximum strength in tight spaces, while samarium cobalt ring magnets excel in high-temperature environments and resist corrosion. Both materials provide exceptional magnetic strength, long-term durability, and precise alignment—qualities engineers depend on for consistent, accurate performance.

Whether you need strong ring magnets for rapid prototyping or full-scale production, our selection is engineered to meet exact specifications and keep your application performing at its peak.

Common Uses

Prototyping brushless DC motors & magnetic coupling devices
Magnetic field focusing in sensor & encoder testing
Robotics & automation prototypes requiring precise alignment
Research projects involving rotational motion & magnetic fields
Low-volume production of high-efficiency motor components

Custom Solutions

SuperMagnetMan is the e-commerce brand of SM Magnetics, here to make it easy to get the magnets you need for prototyping, testing, or small-scale use. When you're ready for a custom solution—whether that’s a fully engineered magnetic system, simulation support, or a complete assembly—our team at SM Magnetics is ready to help you bring it to life.

Submit a Custom Magnet Request Form
Contact Us for engineering support and inquiries

Showing 1 - 24 of 55 products

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ring magnets neodymium magnets rare earth magents

ring magnets neodymium magnets rare earth magnets

R0100-10

Sale price$10.00

Only 1 unit left

0.039" (1mm) OD x 0.20" (0.50mm) ID x 0.020: (0.50mm) thick, Set of 10. N50 Neodymium Magnets Rare Earth Magnets! Magnetized through thickness. Nickel Plated. Minimum Order Quantity (MOQ) = 1 set

R0100D-10

Sale price$10.00

In stock, 33 units

0.039" (1mm) OD x 0.020" (0.50mm) ID x 0.020" (0.50mm) thick. Set of 10. N50 Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized across the diameter. Nickel Plated. Minimum Order Quantity (MOQ) = 1 set

SuperMagnetMan Neodymium Ring Magnet. Used as medical magnets, motor magnets, sensor magnets, consumer electronics magnets. These ring magnets are strong rare earth neodymium magnets also used as automotive magnets. www.supermagnetman.com

R0500-50

Sale price$15.00

In stock, 13 units

0.079" (2mm) OD x 0.039" (1mm) ID x 0.039" (1mm) thick. Set of 50. N50 Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized through thickness. Nickel Plated. Minimum Order Quantity (MOQ) = 1 set

R0500D-25

Sale price$16.50

In stock, 6 units

0.079" (2mm) OD x 0.039" (1mm) ID x 0.039" (1mm) thick, Set of 25. N50 Neodymium Magnets Rare Earth Magnets. Ring Magnets magnetized across the diameter. Nickel Plated. Minimum Order Quantity (MOQ) = 1 set

R0525-10

Sale price$12.50

In stock, 156 units

0.118" (3mm) OD x 0.079" (2mm) ID x 0.039" (1mm) thick. Set of 10. N50 Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized through thickness. Nickel Plated. Minimum Order Quantity (MOQ) = 2 set

Tube Magnets Rare Earth Magnets Neodymium Magnets

Tube0077

Sale price$0.75

Sold out

0.157" (4mm) OD x 0.039" (1mm) ID x 0.118" (3mm) thick, N40 Tube Magnets, magnetized through thickness. Nickel Plated. Rare Earth Magnets Neodymium Magnets Minimum Order Quantity (MOQ) = 20 pcs

R0600D

Sale price$0.65

In stock, 515 units

0.157" (4mm) OD x 0.079" (2mm) ID x 0.039" (1mm) thick, N45 Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized across diameter. Not Plated. Minimum Order Quantity (MOQ) = 15 pcs

R0545

Sale price$0.65

In stock, 1576 units

0.157" (4mm) OD x 0.118" (3mm) ID x 0.039" (1mm) thick, N50 Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized through thickness. Nickel Plated. Minimum Order Quantity (MOQ) = 15 pcs

R1001

Sale price$0.70

In stock, 219 units

0.197" (5mm) OD x 0.118" (3mm) ID x 0.059" (1.50mm) thick, N40 Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized through thickness. Nickel Plated. Minimum Order Quantity (MOQ) = 25 pcs

Tube0125D

Sale price$0.75

In stock, 95 units

0.236" (6mm) OD x 0.043" (1.10mm) ID x 0.197" (5mm) long, N52 Tube Magnets, magnetized across diameter. Nickel Plated. Rare Earth Magnets Neodymium Magnets Minimum Order Quantity (MOQ) = 10 pcs

R1005_N50

Sale price$0.50

Sold out

0.250" (6.35mm) OD x 0.125" (3.18mm) ID x 0.125" (3.18mm) thick. N50 Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized through thickness. Nickel Plated. Minimum Order Quantity (MOQ) = 10 pcs

Tube0278

Sale price$1.99

Sold out

0.300" (7.62mm) OD x 0.218" (5.54mm) ID x 0.200" (5.08mm) long, N50 Tube Magnets, magnetized through the length. Nickel Plated. Rare Earth Magnets Neodymium Magnets Minimum Order Quantity (MOQ) = 10 pcs

Tube0178

Sale price$1.95

In stock, 198 units

0.315" (8mm) OD x 0.079" (2mm) ID x 0.236" (6mm) long, N50 Tube Magnets, magnetized through the length. Nickel Plated. Rare Earth Magnets Neodymium Magnets Minimum Order Quantity (MOQ) = 10 pcs

R1004 N45H

Sale price$1.10

Sold out

0.370" (9.4mm) OD x 0.250" (6.35mm) ID x 0.039" (1mm) thick, N45H Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized through thickness. Nickel Plated. Minimum Order Quantity (MOQ) = 10 pcs

R1005C

Sale price$0.75 Regular price$1.00

In stock, 2708 units

0.375" (9.52mm) OD x 0.250" (6.35mm) ID x 0.039" (1mm) thick, N35 Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized through thickness. Nickel Plated. Minimum Order Quantity (MOQ) = 20 pcs

R1005C N45H

Sale price$0.85 Regular price$1.10

In stock, 15564 units

0.375" (9.52mm) OD x 0.250" (6.35mm) ID x 0.039" (1mm) thick, N45H Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized through thickness. Nickel Plated. Minimum Order Quantity (MOQ) = 10 pcs

R1005B

Sale price$1.05

In stock, 2323 units

0.375" (9.52mm) OD x 0.250" (6.35mm) ID x 0.125" (3.18mm) thick, N50 Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized through thickness. Nickel Plating. Minimum Order Quantity (MOQ) = 10 pcs

R1005B N45H

Sale price$1.15

In stock, 2962 units

0.375" (9.52mm) OD x 0.250" (6.35mm) ID x 0.125" (3.18mm) thick, N45H Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized through thickness. Nickel Plated. Minimum Order Quantity (MOQ) = 5 pcs

R1006

Sale price$1.00

Sold out

0.394" (10mm) OD x 0.217" (5.50mm) ID x 0.118" (3mm) thick, N40 Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized through thickness. Nickel Plated. Minimum Order Quantity (MOQ) = 5 pcs

R1013

Sale price$1.50

In stock, 706 units

0.448" (11.40mm) OD x 0.394" (10mm) ID x 0.079" (2mm) thick, N50 Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized through thickness. Nickel Plated. Minimum Order Quantity (MOQ) = 10 pcs

R1013D

Sale price$1.50

In stock, 575 units

0.448" (11.40mm) OD x 0.394" (10mm) ID x 0.079" (2mm) thick, N40 Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized across diameter. Nickel Plated. Minimum Order Quantity (MOQ) = 10 pcs

R1012

Sale price$1.30

In stock, 354 units

0.500" (12.70mm) OD x 0.250" (6.35mm) ID x 0.039" (1mm) thick, N50 Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized through thickness. Nickel Plated. Minimum Order Quantity (MOQ) = 10 pcs

R1014

Sale price$1.99

Sold out

0.500" (12.70mm) OD x 0.250" (6.35mm) ID x 0.250" (6.35mm) thick, N50 Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized through thickness. Nickel Plated. Minimum Order Quantity (MOQ) = 5 pcs

R100745H

Sale price$1.65

Sold out

0.472" (12mm) OD x 0.315" (8mm) ID x 0.118" (3mm) thick, N45H Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized through thickness. Nickel Plated. Minimum Order Quantity (MOQ) = 10 pcs

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0.5-4.9 (8)
5-9.9 (10)
10-15.9 (11)
16-19.9 (12)
20-59.9 (11)
60-140 (2)

0.5-4.9 (15)
5-9.9 (17)
10-19.9 (14)
20-59.9 (6)
60-140 (2)

0.20-0.80 (3)
0.81-1.75 (15)
1.76-3.0 (10)
3.1-5.0 (9)
5.1-25.4 (17)

N35 (1)
N40 (15)
N42 (1)
N45 (1)
N50 (20)
N52 (1)
N48M (1)
N45H (11)
N42SH (1)
SmCo18 (1)
SmCo26 (2)

Nickel (48)
Gold (1)
PTFE (1)
Black Epoxy (1)
Unplated (3)

Through the thickness (43)
Across the diameter (8)
Through the length (2)
Multi-pole (1)

Frequently Asked Questions

What are ring magnets used for?

Ring magnets are commonly used in motors, couplings, sensors, and magnetic assemblies.

What is the difference between neodymium & samarium cobalt ring magnets?

Neodymium magnets are the strongest and most cost-effective but require protective coatings and have lower heat resistance. Samarium Cobalt magnets are slightly less powerful but offer superior temperature stability, natural corrosion resistance, and long-term durability in harsh environments.

Can you produce custom sizes, magnetization direction or coatings?

Yes. Through our engineering division, SM Magnetics, we can design and manufacture custom sizes, magnetization directions, and specialized coatings. You can either submit a custom request form or contact us directly to speak with our experts.

Contact Us

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Customer support

Monday - Friday 8:30am-5:00pm CST

Call us at 205-621-8841

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Email us at sales@supermagnetman.com