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TACF disc coupling

Disc coupling: by definition, transmits torque from a driving to a driven bolt tangentially on a common bolt circle.

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  • Description
  • Disc coupling: by definition, transmits torque from a driving to a driven bolt tangentially on a commobolt circle. Torque is transmitted between the bolts through a series of thin, stainless steel discs assembled in a pack. Misalignment is accomplished by deforming of the material between the bolts.

    A disc coupling is a high performance motion control (Servo) coupling designed to be the torque transmitting element (by connecting two shafts together) while accommodating for shaft misalignment. It is designed to be flexible, while remaining torsionally strong under high torque loads. Typically, disc couplings can handle speeds up to 10,000 RPM.

    There are two different styles of disc coupling:

    Single Disc Style couplings are composed of two hubs (the ends of the coupling, which are typically made from aluminum, but stainless steel is used as well) and a single, flat, stainless steel disc spring

    Double Disc Style coupling is also composed of two hubs, but has an additional center spacer sandwiching two disc springs. The center spacer can be made out of the same material as the hubs, but is sometimes available in insulating acetal, which makes the coupling electrically isolating.

    The difference between the two styles is that single disc couplings cannot accommodate parallel misalignment due to the complex bending that would be required of the lone disc. Double disc styles allow the two discs to bend in opposite directions to better manage parallel offset. The discs are fastened to the hubs (and center spacer on double disc styles) with tight fitting pins that do not allow any play or backlash between the disc and the hubs. The discs can be bent easily and as a result, disc couplings have some of the lowest bearing loads available in a motion control coupling.

    Torsionally stiff and still flexible, disc couplings are a great solution for high speed applications. The downside is that they are more delicate than the average coupling and can be damaged if misused. Special care should be taken to ensure that misalignment is within the ratings of the coupling.

    Advantages of disc coupling

    1.  Eliminates the need for lubrication and coupling maintenance

    2.  Coupling can be inspected without disassembly

    3.  Condition of disc packs can be inspected with a strobe light while the machine is running

    4.  Note: It is not recommended that couplings be operated without coupling guards.

    5.  Easy to assess equipment misalignment

    6.  Torsionally rigid without any backlash

    7.  No wearing parts

    8.  Resistance to harsh environments

    9.  Long life when properly sized and aligned

    10. High power density (higher torque for a given outside diameter)

    Model NO.

    Power/Speed

    (Kw/rpm)

    Nominal torque

    (KNm)

    Peak torque

    (KNm)

    A

    (mm)

    B

    (mm)

    C max (mm)

    F

    (mm)

    Wmin

    (mm)

    W available sizes

    20#(seamless sleeve)

    W available sizes

    Q235-B(spiral sleeve)

    TACF8363

    6.6

    63

    140

    365

    260

    195

    200

    244

    426x12

    508x10457x10

    TACF8396

    8.5

    81.11

    197

    398

    280

    210

    215

    272

    ------

    529x10508x10457x10

    TACF8425

    11

    105

    217

    427

    294

    220

    230

    272

    ------

    630x10529x10508x10457x10

    TACF8457

    14

    133.7

    320

    459

    322

    240

    240

    298

    ------

    630x10529x10508x10457x10

    TACF8493

    17

    162.3

    355

    495

    352

    260

    260

    324

    ------

    720x10630x10529x10508x10457x10

    TACF0537

    25

    238.75

    548

    539

    374

    275

    280

    350

    ------

    720x10630x10529x10508x10457x10

    TACF0580

    35

    334.25

    770

    582

    415

    300

    305

    350

    ------

    720x10630x10529x10508x10457x10

     

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Tanso

Cangzhou Tanso Couplings Co., Ltd. (the former Botou Tianshuo Couplings Factory) specializes in the research and production of expansion coupling sleeve, mechanical drives and mechanical seals.