M5051 - Arc Motor Magnets - 20mm OD x 15mm ID x 13mm L - N52 - Nickel Plated


Length 0.512" (13mm)
Inside Diameter 0.591" (15mm)
Outside Diameter 0.787" (20mm)
Grade Neodymium 52
Max Working Temp 60°C
Coating Nickel
Direction of Magnetism Radially magnetized
MOQ 1
Price:
Sale price$9.90
Stock:
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Additional Resources

Pull Force Calculator

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Coating Specifications

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Material Grades & Curves

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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.

About the Product

Neodymium arc magnets are built for rotor and stator prototypes, magnetic couplings, and curved fixtures. The arc radius nests on hubs or housings so you can assemble partial or full rings to tune pole count and air gap. Magnetization is typically axial through thickness, with radial options for motor development. Tight arc angle, ID/OD, and thickness tolerances support repeatable fits and balance. Estimate attraction with the pull-force calculator, then review grade and temperature limits in the material data and select coatings that suit your test environment.

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