R424DIA - Neodymium Diametric Ring Magnet - 1/4" Dia x 1/8" ID x 1/4" Thi

• Dimensions: 1/4" od x 1/8" id x 1/4" thick
• Tolerances: ±0.004" x ±0.004" x ±0.004"
• Material: NdFeB, Grade N42
• Plating/Coating: Ni-Cu-Ni (Nickel)
• Magnetization Direction: Diametrical
• Weight: 0.0399 oz. (1.13 g)
• Pull Force, Case 1: 1.36 lbs
• Pull Force, Case 2: 1.91 lbs
• Surface Field: 5299 Gauss
• Max Operating Temp: 176ºF (80ºC)
• Brmax: 13,200 Gauss
• BHmax: 42 MGOe

These rings are diametrically magnetized, which means they are magnetized perpendicular to the axis of the hole. The poles are located on opposite sides of the circular faces. They can be placed on a shaft to work with sensors or to generate electricity.


This size is also available axially magnetized in grade N42 as part number R424.