N35 neodymium ring magnet measuring 25 mm OD × 20 mm ID × 5 mm thick, axially magnetized with Ni-Cu-Ni coating and a listed 14.57 lb pull force. SKU 9453.
SKU 9453 is an N35 neodymium ring magnet measuring 25 mm OD × 20 mm ID × 5 mm thick. Axially magnetized and nickel plated, it gives engineers, OEMs, and procurement teams a broad metric ring geometry for sensing, alignment, shaft or tube clearance, fixtures, prototypes, and production assemblies.
| Outer Diameter | 25 mm |
|---|---|
| Inner Diameter | 20 mm |
| Thickness | 5 mm |
| Tolerance | ±0.004 in |
| Material | NdFeB |
| Grade | N35 |
| Coating | Ni-Cu-Ni |
| Magnetization | Axial |
| Listed Remanence (Br) | 12,100 gauss |
| Listed Maximum Energy Product | 35 MGOe |
| Listed Pull Force | 14.57 lb |
| Approximate Weight | 0.234 oz |
| Listed Maximum Temperature | 80°C / 176°F |
Axial magnetization places the north and south poles on the two flat annular faces. The large 20 mm center opening can accommodate a shaft, tube, bushing, fastener, or other assembly feature while leaving a narrow magnetic annulus around the bore.
The listed pull force is a reference value under controlled conditions. Air gap, steel thickness, surface finish, contact area, temperature, and load direction all affect actual performance. Use the Magnet Pull Force Calculator for preliminary screening and review What Is a True Radial Magnet? when comparing axial and radial ring designs.
Browse stocked ring magnets for related sizes, compare grades with the Neodymium Magnet Grades Chart, or submit the Magnet RFQ Builder for custom OD, ID, thickness, coating, tolerance, magnetization, or production requirements.
| Weight | 0.014610 lbs |
|---|---|
| Dimensions | 0.984252 × 0.984252 × 0.196850 in |
| Diameter | 25mm |
| Inner Diameter | 20mm |
| Thickness | 5mm |
| Strength / Grade | N35 |
| Pull Force | 11-20lbs |
| Magnetization Direction | Axial |
| Shape | Ring |
| Surface | Coating | Thickness(microns) | Color | Resistance |
|---|---|---|---|---|
| Passivation | 1 | Silver Grey | Temporary Protection | |
| Nickel | Ni Ni Ni Cu Ni |
10-20 | Bright Silver | Excellent Against Humidity |
| Zinc | Zn Cu Zn |
8-20 | Bright Blue Shinny Color |
Good Against Salt Spray Excellent against Salt Spray |
| Tin | Ni Cu Sn | 15-20 | Silver | Superior Against Humidity |
| Gold | Ni Cu Au | 10-20 | Gold | Superior Against Humidity |
| Copper | Ni Cu | 10-20 | Gold | Temporary Protection |
| Epoxy | Epoxy Ni Cu Epoxy Zn Epoxy |
15-25 | Black, Red, Grey |
Excellent Against Humidity & Salt Spray |
| Chemical | Ni | 10-20 | Silver grey | Excellent Against Humidity |
41 in stock (can be backordered)
| Title | Quantity | Price Per Magnet |
|---|---|---|
| Quantity Discounts | 1 - 9 | 0% $7.50 |
| Quantity Discounts | 10 - 49 | 6.15% $7.04 |
| Quantity Discounts | 50 - 99 | 10% $6.75 |
| Quantity Discounts | 100 - 999 | 15% $6.38 |
| Quantity Discounts | 1000 - 4999 | 30% $5.25 |
| Quantity Discounts | 5000 - 9999 | 40% $4.50 |
| Quantity Discounts | 10000 + | 50% $3.75 |
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