High-speed SPM Ac Synchronous machines require magnet retention against centrifugal forces. OD sleeves made from Titanium, Inconel, or 300 series stainless steel are commonly used. The highest tip speed retainable requires the use of carbon-composite sleeves. EEC Motorsolver has been a leader in this solution for many years offering standard sleeve sizes. Custom sizes are also available.
Carbon composite continuous fiber ultra high strength tubing is used to make sleeves for retention of high-speed rotors against centrifugal forces.
Applications for Pre-stressed fitting over rotors:
- High-speed SPM brushless DC&PM-AC synchronous motors and generators to prevent magnet lift-off and balancing stability.
- High-speed Asynchronous rotor end rings.
- High-speed Reluctance-synchronous rotors.
Rotor retention for tip speeds up to 1200m/sec. Most diameters and thicknesses are available on special orders. (Requires tooling charge)
High-speed SPM Ac Synchronous machines require magnet retention against centrifugal forces.