17X44X11mm Good Price Magnetic Bearing E17 Magneto Ball Bearing E17 E13 Magneto Magnetic Bearing with Size 13*30*7mm Deep Groove Ball Bearing Magnetic Ball Bear
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| Hardness: | HRC60--62 |
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Basic Info.
- Model NO.
- E13 Magneto Magnetic Bearing With Size 13*30*7mm D
- Clearance
- C2 C0 C3
- Cage
- Steel Nylon Brass
- Type
- Open Zz 2RS
- Material
- Chrome Steel Gcr15
- Service
- OEM
- Grease
- Sheel Great Wall
- Precision
- P0 P6 P5
- Package
- Industry or Single Box
- Transport Package
- Industry or Single Box
- Specification
- Standard
- Trademark
- UJK
- Origin
- China
- HS Code
- 84821020
- Production Capacity
- 100000
Packaging & Delivery
- Package Size
- 15.00cm * 30.00cm * 12.00cm
- Package Gross Weight
- 2.000kg
Product Description
Version 1: Comprehensive Technical Overview
Magneto (Permanent) Magnetic Bearing: A Frictionless Solution Using Permanent Magnets
A Magneto Magnetic Bearing, more precisely known as a Permanent Magnet Bearing, is a type of passive magnetic bearing that utilizes the powerful, persistent repulsive or attractive forces between permanent magnets to levitate a rotating shaft without any physical contact. Unlike active magnetic bearings, which require electromagnets, sensors, and complex control systems, magneto bearings operate entirely passively, offering a truly contact-free and maintenance-free solution.
Key Principles & Features:
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Passive Operation: Relies solely on the inherent magnetic fields of high-grade permanent magnets (e.g., Rare-Earth magnets like Neodymium (NdFeB) or Samarium-Cobalt (SmCo)). No external power, control systems, or sensors are required.
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Zero Physical Contact: Eliminates mechanical friction, leading to virtually infinite life, no wear, and no need for lubrication.
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Ultra-High Speeds: The absence of friction allows for extremely high rotational speeds (RPM) limited only by the rotor's centrifugal strength.
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Low Maintenance & Clean Operation: With no lubrication needed, they are ideal for vacuum environments, cleanrooms, and applications where contamination is a critical concern (e.g., semiconductor manufacturing, medical devices).
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Inherent Stability Challenges: Pure permanent magnet designs are often passively unstable in at least one axis (usually axial). Therefore, they are frequently used in hybrid systems, paired with other bearing types (like mechanical backup bearings or active magnetic bearings) or special magnet arrangements to achieve full stability.
Common Applications:
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High-Vacuum Pumps: Turbomolecular pumps and scroll pumps where lubrication would cause contamination.
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High-Speed Spindles: For milling, drilling, and other precision machining tools.
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Aerospace & Defense: Gyroscopes, reaction wheels, and turbine equipment.
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Semiconductor Manufacturing: Wafer handling robots and process chamber equipment.
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Consumer Appliances: High-end HVAC systems and inverter compressors.
Note on Terminology: The term "Magneto" in this context is a historical reference to permanent magnets (from "magnetoelectric") and is used to distinguish them from active electromagnetic systems.
Version 2: Concise & Impactful Summary
Magneto Magnetic Bearing: The Power of Passive Levitation
A Magneto Magnetic Bearing uses the permanent, powerful force of rare-earth magnets to suspend a rotor without physical contact. This passive technology eliminates friction, wear, and the need for lubrication, enabling ultra-high speeds and maintenance-free operation in the most demanding environments.
Ideal for applications where cleanliness, reliability, and high performance are critical, such as in vacuum systems, high-speed spindles, and precision medical equipment.
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