N40H Neodymium Iron Boron Motor Arc Magnets

N40H Neodymium Iron Boron Motor Arc Magnets, Powerful Rare Earth Neodymium Segment Curved Magnet, permanent horseshoe sintered magnet, Stator and Rotor Magnet, dc permanent magnet motor generator, Permanent Magnet DC (PMDC) Motor Arc-shaped Magnets

N40H Neodymium Iron Boron Motor Arc Magnets Parameter
Part No. NSGN40H-78
Dimensions Customized sizes
Material Sintered Neodymium-Iron-Boron (NdFeB)
Shape Arc / Segment
Plating Nickel (Ni)
Magnetization Direction Diameter
Grade N40H
Maximum Temperature: 120 Degree
Magnetization: Inside Curve to Outside Curve
Dimensional Tolerance +/-0.005″

Neodymium Iron Boron Magnets, N38H Arc Magnets for Motorcycle Stator
A class of rare earth material, neodymium magnets are available in both sintered and bonded forms,
as well as custom configurations.
Major Characteristics
Most powerful (highest energy product) class of magnet material commercially available.
High Br, relatively high Hc, high BHmax.
Lower cost than samarium cobalt.
Temperature sensitive.
Susceptible to oxidation.
With careful design, some grades will function up at temps up to 200°C (392°F.
Energy product ranges from 10 MGOe to 53 MGOe
Relative cost Index (by weight): 40

In order to quote the best price to you in timely, please kindly provide the following information when you send the inquiry:
Material type and grade required
Size and shape, if available, a sketch or drawing with dimensions and tolerances.
Coating of the magnets
Application of the magnets
Max working temperature
Quantity required
Magnetized or not? Magnetization direction?

Arc magnets are a unique shape which are designed especially for motors, generators and alternators and are commonly used for both rotors and stators. They are also used in magnetic flywheel assemblies. In motor design a ring of magnets with alternating polarities on the inner radius rotate in close proximity to a number of copper coils. As the copper passes through the magnetic fields an electric current is induced within the copper.

Four or more magnets with an equal number of north and south polarity on the inner radius can be used to create a multi-pole ring. All arc magnets are available with either pole on the inner radius.

Coating of Neodymium Permanent Magnets