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Axially magnetized: the poles are on the two flat faces of the ring.NS
Magnetization directionAxially magnetized: the poles are on the two flat faces of the ring.Arrows show the direction of magnetization inside the magnet, pointing toward north.

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.

9453 – Neodymium Magnet Ring N35 NiCuNi OD 25mm x ID 20mm x 5mm(A)

Description
Additional information
Coatings
Magnetization

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.

Specifications

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

Design and application notes

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.

Procurement and custom ring magnets

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.

N35 ring magnet OD 25 mm x ID 20 mm x 5 mm dimensional drawing — SKU 9453

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

Coatings

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
Axially magnetized: the poles are on the two flat faces of the ring.NS
Magnetization directionAxially magnetized: the poles are on the two flat faces of the ring.Arrows show the direction of magnetization inside the magnet, pointing toward north.

41 in stock (can be backordered)

Quantity Price Per Magnet
1 - 9 $7.50
10 - 49 $7.04
50 - 99 $6.75
100 - 999 $6.38
1000 - 4999 $5.25
5000 - 9999 $4.50
10000 + $3.75
EAN / UPC: 694685270522GTIN: 694685270522 SKU 9453 Categories , Tags , , ,
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True radial magnetization, ISO 9001, U.S. inventory on both coasts, same-day shipping by 2PM EST.

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