8399 – N35 Neodymium Ring Magnet 14 OD × 12 ID × 5 mm

SKU 8399 is an N35 neodymium ring magnet measuring 14 mm outside diameter × 12 mm inside diameter × 5 mm thick. It is axially magnetized, placing the poles on the two flat annular faces, and finished with Ni-Cu-Ni plating. The central bore and narrow ring wall suit compact sensors, alignment features, fixtures, prototypes, and production assemblies where the specified geometry fits the available space.

Specifications

Design notes for this thin-wall ring magnet

Confirm pole orientation, operating air gap, target-steel thickness, adhesive selection, and dimensional stack-up in the final assembly. Sintered neodymium is hard and brittle, so avoid impact, snap-together collisions, uneven clamping, and excessive mechanical stress. Use controlled installation methods when assembling magnets near steel or other magnets.

The listed 8.16 lb pull force is a comparison value under defined contact conditions, not a guaranteed safe working load. Air gaps, target-steel thickness, surface roughness, misalignment, and shear loading can reduce usable holding force. Validate performance in the final assembly.

Use the magnet pull force calculator for preliminary screening and compare materials in the neodymium magnet grade chart. Browse neodymium ring magnets, or submit the magnet RFQ builder for volume pricing or custom requirements.