Radially Oriented NdFeB Ring Magnets
Radially oriented neodymium iron boron (NdFeB) ring magnets are state-of-the-art ring magnets with diverse magnetization patterns in radial direction. In general, they provide high performance and cost-effective alternatives to arc/segment magnets. According to different production processes, radially oriented NdFeB ring magnets include sintered NdFeB ring magnets, bonded NdFeB ring magnets and hot-pressed NdFeB ring magnets.
single pole radially ring magnet
multi-pole radially ring magnet (straight)
multi-pole radially ring magnet (skew)
Features of Radially Oriented NdFeB Ring Magnets
1. High dimensional accuracy,
2. Optional magnetization patterns including single pole, straight multi-pole and skew multi-pole types,
3. A single ring magnet makes assembly and installation easy and low cost,
4. Simple and stable structure guarantees excellent dynamic balance performance, and
5. Uniform magnetic properties and magnetization waves distribution contribute to low motor noise and smooth torque output.
Although radially oriented NdFeB ring magnets have the above advantages, they need a pressing mold and a magnetizing fixture for production including samples preparation. A set of these custom tools costs 1,000 to 7,000 USD depending on custom magnet’s specifications, so the cost of product development is relatively high in the early stage.
Applications of Radially Oriented NdFeB Ring Magnets
1. Servo motors,
2. Spindle motors,
3. Magnetic couplings,
4. Electrical power steering motors, and
5. DC motors, etc.