Mechanical Rotators

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  • Rotating unions for steam, hot oil and water applications
    Rotating unions (also referred to as rotary unions, rotary joints, rotary swivels and rotary couplings) transfer fluids from a stationary source to rotating equipment. In theory, rotating unions are simple mechanical devices. They are comprised of two main components: a stationary member
  • Silicone Based Insulation Material for High Speed/Voltage Rotating Machines
    This paper introduces the key requirements for resin rich electrical insulation materials for rotating machinery. The key requirements, or stresses that insulation are subject to, are summarized as T.E.A.M. (thermal, electrical, ambient, and mechanical). Resin rich insulation materials can be based
  • Silicone Based Electrical Insulation Material for High Speed/Voltage Rotating Machines
    This paper introduces the key requirements for resin rich electrical insulation materials for rotating machinery. The key requirements, or stresses that insulation are subject to, are summarized as T.E.A.M. (thermal, electrical, ambient, and mechanical). Resin rich insulation materials can be based
  • Rotating Motion: The Role of Ball Bearings
    Ball bearings are mechanical components designed to reduce friction between moving parts while supporting rotary motion. They consist of an inner ring, an outer ring, and a set of steel or ceramic balls positioned between them. Balls made of steel or ceramic, are precisely spaced by a cage
  • Energy Efficiency Improvement with Permanent Magnet Motors and Variable-Frequency Drives
    In the induction motor, slip frequency (i.e., the frequency difference between stator rotating flux and mechanical rotating speed) induces current in the rotor windings. The interaction between rotating magnetic field and induced rotor current produces a driving force, but the motor current causes
  • Spinning Mass Mechanical Gyroscopes
    In early times, people discovered the spinning top, a toy with a unique ability to balance upright while rotating rapidly. Ancient Greek, Chinese and Roman societies built tops for games and entertainment. The Maori in New Zealand have used humming tops, with specially-crafted holes, in mourning
  • Whitepaper: Calculating the Moment of Inertia
    The most difficult mechanical parameter in torque motor sizing, tends to be the moment of inertia. It is the rotative equivalent of moving mass.
  • Avoiding Coupling Failure: Considerations in Design Selection
    Mechanical couplings have a principal use in the connection of rotating shafts for the transfer of rotary motion and torque. As with all mechanical devices, a coupling must match its intended purpose and application parameters, including many different performance, environmental, use and service

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