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TACL 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)

    AG

    (mm)

    B

    (mm)

    C max (mm)

    F

    (mm)

    Wmax

    (mm)

    W available sizes

    20# (seamless sleeve)

    W available sizes

    16Mn(seamless sleeve)

    TACL6247

    1.28

    12.22

    32

    247

    297

    182

    130

    140

    159

    159x4.5152x5146x6

    140x7

    TACL6272

    2.16

    20.62

    45

    272

    324

    196

    140

    150

    180

    180x6168x6159x6

    159x5146x8

    TACL8302

    3.46

    33

    78

    302

    350

    224

    155

    165

    180

    180x7168x10

    180x6168x8168x7

    TACL8333

    4.13

    39.44

    101

    333

    394

    238

    170

    180

    219

    219x6203x8194x8

    194x6180x8168x8

    TACL8363

    6.6

    63

    140

    363

    420

    260

    185

    200

    244

    244x8219x10203x12

    244x6.5219x8,203x10

    TACL8396

    8.5

    81.11

    197

    396

    452

    280

    200

    215

    272

    272x10244x14219x16

    272x10245x10219x14

    TACL8425

    11

    105

    217

    425

    487

    294

    210

    230

    272

    272x10244x14219x16

    272x10245x10219x14

    TACL8457

    14

    133.7

    320

    457

    527

    322

    230

    240

    298

    298x12272x14

    298x10272x12272x10

    TACL8493

    17

    162.3

    355

    493

    563

    352

    250

    260

    324

    324x10298x12272x14

    324x9298x10272x12

    TACL0537

    25

    238.75

    548

    537

    617

    374

    265

    280

    350

    350x12,324x16

    350x10324x14324x12

    TACL0580

    35

    334.25

    770

    580

    648

    415

    290

    305

    350

    350x12,324x16

    350x10324x14324x12

    TACL0630

    42

    401.1

    920

    630

    688

    452

    320

    330

    400

    400x16376x18

    400x14350x14

     

    keywords:
    • disc coupling
    • diaphragm couplings
    • high speed coupling
    • membrane coupling
    • high performance coupling
    • coupler manufacturer

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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.