9209 – Neodymium Magnet Ring N40 OD 6mm ID 4mm T 5mm(A)

SKU 9209 is an N40 neodymium ring magnet measuring 6 mm OD × 4 mm ID × 5 mm thick. Its compact annular geometry gives engineers, OEMs, and procurement teams a small stock ring for sensing, alignment, shaft or pin clearance, fixtures, prototypes, and embedded assemblies.

Specifications

Ring magnet design notes

This part is axially magnetized, so the north and south poles are on the two flat annular faces. It is not a true radially magnetized ring. The 4 mm center bore can provide clearance for a shaft, pin, fastener, or other assembly feature, subject to the mechanical tolerances of the application.

The listed pull value is a reference measurement under defined conditions. Air gap, target steel, contact geometry, temperature, surface finish, and the percentage of annular face actually contacting the target all affect real-world performance. Review What Is a True Radial Magnet? when comparing axial and radial ring designs.

Procurement and custom ring magnets

Browse stocked ring magnets for related sizes, compare material options with the Neodymium Magnet Grades Chart, or use the Magnet RFQ Builder for custom OD, ID, thickness, coating, tolerance, magnetization, or production quantities.