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  • Laser Welding Tightly-Wound Coils (.pdf)
    example of this type of application is known as a flexible drive shaft. The application consists of joining an inner and outer coil, where both are very tightly wound under high tension. Table 1 lists the specifics for the coil. Laser welding is well suited to this particular type of application due
  • Eliminating compliance in servosystems
    A traditional motor-mounting arrangement consists of a housed motor coupled to a lead or ball-screw shaft by a flexible coupling and a motor mount. A direct drive consists of a rotor assembly fabricated directly on the ball screw, eliminating duplicate motor parts, compliant couplings, and brackets
  • MTBF APPROACHING INFINITE
    The concept of fatigue resistance in flexible shaft coupling design has been highly valued by R+W since its inception in 1990. For much of its first two decades in business the company focus was almost exclusively on couplings for high performance servo drive technology. When it comes to machinery
  • Taking torque around corners
    of couplings can join rotating drives when there is just a small misalignment between shafts ( <3°). But designs with misalignments approaching 10° or more leave just three choices: Cardan-type universal joints (automotive-style needle bearing and block-and-pin), and flexible shafts. joints, also
  • Metal Chains
    There are three methods of transmitting power mechanically from shaft to shaft: chain drives, gears, and flexible belts. The chief advantage of chains and belts over gears is chains can be used with arbitrary shaft center distances. Also, compared with gears, chains are simpler and generally less
  • What to look for in a servocoupling
    Torque, shaft misalignment, stiffness, rpm, and space requirements are some of the factors to consider when selecting a coupling for servo applications. Servocouplings come in a variety of designs but all have zero backlash. Servocouplings are typified by their ability to transmit torque with zero
  • Servos Find a Packaging Niche
    on the back of a manufacturing engineer's neck, look first at the old-fashioned drive-shaft packaging lines. They may not be flexible or precise, but their mechanical linkages make them very, very predictable. A PLC using ladder logic engages one function after another. It is a system that is relatively easy
  • Synchronous Belts
    of attractive features that put them in applications where there is no real need for shaft synchronization. They are thin and flexible, so they operate well on miniature drives and in applications involving high speeds or small pulleys. Preliminary studies indicate they may be the most efficient

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