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Download GC-GEAR COUPLINGS - Deutsche Messe 3 LINE-UP GC – Small Sizes GC-50 – GC-200 GC – Large Sizes

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  • MENU

    GC-GEAR COUPLINGS

    Version:00.001EN / 25.02.2013 1

    The only fully customizable gear coupling in the market

  • 2

    TA

    BLE

    OF C

    ON

    TE

    NT

    S

    LINE-UP 3

    TABLE OF DIMENSIONS Table 1 4

    MATERIALS 5

    SEALS Figure 1 6

    HARDWARE Table 2 7

    ATTACHMENTS Figures 2 & 3 8

    LUBRICATION Table 3 9

    ALIGNMENT PRECISION Tables 4 & 5, diagram 1 10 - 11

    INSTALLATION 12

    MAINTENANCE 13

    WARRANTY TERMS 14

    REFERENCES 15

    GC-GEAR COUPLINGS

  • 3

    LIN

    E-U

    P

    GC Small Sizes GC-50 GC-200

    GC Large Sizes GC-220 GC-500

    GCY One-piece Sleeve

    GCTELA For Rolls with Angular Position Adjustment

    GCOB Brake Disc Between Flanges, Offset

    GCX With Intermediate Shaft

    GCB Brake Disc Between Flanges

    GCDE Disengaging Version

    GCJ Outer Sleeves Attached to Shafts

    GCT With Shear Pins

    GCL Long Axial Stroke

    GCV For Vertical Drives

    GC-GEAR COUPLINGS

  • Torque transfer capacity is given with the base material without heat treatment and with a safety factor of 1.5.

    Dimensions Dh and Dn given in table 1 are locked. Other dimensions can be chosen according to the range given.

    Puller holes Dph and M can be freely chosen. The recommended dimensions are listed in table 1.

    TA

    BLE O

    F D

    IM

    EN

    SIO

    NS

    4

    Table 1: Dimensions

    Dimensions

    Type Tnom Tmax D Dh Dn D1/D2 L Ln1/Ln2 S Dph M

    GC-60 3 050 6 100 148-250 105 83 20-60 124-254 60-150 6-100 70 M8

    GC-70 4 200 8 400 169-250 126 100 20-70 154-254 70-150 6-100 86 M8

    GC-90 8 400 16 800 209-300 162 135 30-90 174-254 80-150 6-100 110 M10

    GC-110 14 600 29 800 233-300 186 160 40-110 204-404 100-200 6-100 144 M10

    GC-130 17 200 34 400 308-400 246 200 50-130 253-613 120-300 12-150 168 M16

    GC-160 35 400 70 800 336-500 262 220 60-160 293-613 140-300 12-150 196 M16

    GC-180 47 500 95 000 366-500 303 255 80-180 373-813 160-400 12-200 226 M20

    GC-200 64 800 129 600 428-600 345 290 80-200 376-820 180-400 16-200 246 M20

    GC-220 103 600 207 200 458-600 394 320 80-220 416-820 200-400 16-200 284 M20

    GC-240 165 000 330 000 497-700 440 360 100-240 462-820 220-400 22-250 314 M24

    GC-260 219 000 438 000 534-800 474 380 100-260 563-820 280-400 22-250 330 M24

    GC-300 250 500 501 000 580-800 518 431 160-300 563-820 300-400 22-250 390 M30

    GC-365 345 000 690 000 668-800 586 480 180-365 630-830 300-400 30-250 422 M30

    GC-400 480 000 960 000 730-800 642 530 200-400 630-830 300-450 30-300 478 M30

    GC-450 661 000 1 322 000 830-900 720 621 200-450 630-930 300-450 30-300 560 M30

    GC-500 790 000 1 580 000 882-900 742 651 200-500 730-1030 350-500 30-300 600 M30

    GC-GEAR COUPLINGS

  • Standard materials:

    Sleeve and hub: 42CrMo4 QT

    End flanges: S355

    Intermediate shafts and misc. parts: S355

    Special materials:

    AiSi304 / AiSI316 (GCRST)

    34CrNiMo6 (GCHD)

    AlSiMg (GCAL)

    GC-Couplings do not have any special surface finishing as standard. Available finishes:

    Painting (hubs are not painted)

    Blueing and parkerizing

    Anodizing

    Zinc plating

    Available heat treatments:

    Nitriding

    Induction hardening (teeth only)

    Carburizing

    MA

    TE

    RIA

    LS

    5

    GC-GEAR COUPLINGS

    Some finishes and heat treatments are material dependant

  • Available seal materials:

    NBR70 Nitrile rubber, -20 c - +120 c

    FPM70 Viton rubber, -18 c - +220 c

    EPDM Ethylene rubber, -45 c - +130 c

    PTFE-coated Silicone, -40 c - +205 c

    The seals limit the maximum allowable angular misalignment of the coupling. Angular misalignment can be increased by changing the seals.

    The flange connection between the outer sleeves is not sealed. A sealing lacquer such as Loctite 510 is recommended.

    Oil lubricated couplings are equipped with special seals.

    Seal configurations:

    GC-50 GC-200: One piece sleeve with O-ring groove

    GC-220 GC-500: Separate end flanges for O-rings

    Figure 1: GCT-Coupling seals

    6

    SE

    ALS

    Seals should be stored separately

    from the coupling if the storage period is several months

    GC-GEAR COUPLINGS

  • 7

    Only DIN standard hardware is used in GC couplings.

    All hardware should be grade 8.8 or higher.

    The flange connection between the outer sleeves is achieved with fitted screws and metal lock nuts, which also center the sleeves together.

    Standard hardware is either zinc plated or parkerized. Special hardware, such as stainless steel, is available on request.

    All screws should be torqued according to table 2.

    HA

    RD

    WA

    RE Tightening Torques

    Values listed are valid for lightly oiled threads

    Thread Grade 8.8 Grade 10.9 Grade 12.9

    M8 25 Nm 36 Nm 43 Nm

    M10 49 Nm 72 Nm 84 Nm

    M12 85 Nm 125 Nm 145 Nm

    M16 210 Nm 310 Nm 365 Nm

    M20 425 Nm 610 Nm 710 Nm

    M24 730 Nm 1050 Nm 1220 Nm

    M30 1450 Nm 2100 Nm 2450 Nm

    Table 2: Tightening Torques

    Hardware of lower grade than the

    originals must not be used

    GC-GEAR COUPLINGS

  • The most common attachment is a fitted bore and a keyway.

    GC couplings are available with a variety of attachments:

    Bore & keyway or multiple keyways

    MAV locking devices and shrink discs

    Bore with oil release grooves

    Conical bore

    DIN5480 spline

    Form shafts, such as rectangular

    Flange connections

    Hub and shaft fit is always chosen according to customer demand. H7/m6 or J7/m6 is recommended for most applications.

    The necessary attachment may serve as the sizing base for the entire coupling, large shaft with a low torque, for example.

    Figure 2: Fitted bore & Keyway

    Figure 3: Stepped bore with

    Oil release grooves

    AT

    TA

    CH

    ME

    NT

    S

    8

    GC-GEAR COUPLINGS

  • The lubricant should have EP (Extreme Pressure) additives and of NLGI class 0, 00 or 1.

    Recommended lubricants are listed in table 3.

    Operating temperature, speed and load should all be considered when choosing the correct lubricant. Lubricant suppliers should be consulted if uncertainty of the proper lubricant remains.

    LU

    BR

    IC

    AT

    IO

    N

    9

    Incorrect lubricant quality or amount

    will lead to premature wear

    Recommended Lubricants

    Supplier Brand Name NLGI class Temperature

    Mobil Mobilux EP 0 0 -30 - +120 C

    Mobilith SHC 007 00 -50 - +230 C

    Glber Glberplex GE 11-680 0, 00 -30 - +180 C

    Neste Couprex 1 -0 - +110 C

    Allrex EP 0 0 -30 - +120 C

    Shell Albida GC1 1 -10 - +120 C

    Alvania EP (LF) 0 0 -50 - +230 C

    Castrol Longtime PD-9 0 -40 - +140 C

    Teboil DKW Grease 0 -30 - +100 C

    Table 3: Lubricants

    Greases and oils should not be

    mixed together

    GC-GEAR COUPLINGS

  • 10

    Max. Deviations

    Type X

    GC-60 1,0 0,09

    GC-70 1,0 0,09

    GC-90 1,0 0,09

    GC-110 1,0 0,09

    GC-130 1,0 0,21

    GC-160 1,0 0,21

    GC-180 1,0 0,21

    GC-200 1,0 0,28

    GC-220 1,0 0,28

    GC-240 1,0 0,38

    GC-260 1,0 0,38

    GC-300 1,0 0,38

    GC-365 1,0 0,52

    GC-400 1,5 0,52

    GC-450 1,5 0,52

    GC-500 1,5 0,52

    ALIG

    NM

    EN

    T P

    RE

    CIS

    IO

    N

    Alignment precision requirements for special versions can be found in the assembly drawing of the coupling.

    Values listed in table 4 are valid for a coupling in normal use, rotating at max. 1500 1/min. Radial misalignment X is given at the largest allowed angular misalignment and according to the shortest value S listed in table 1.

    Maximum tooth backlash for each coupling is listed in table 5.

    The relationship between angular misalignment, rotating speed and torque transfer capacity is give in diagram 1. The values are approximate.

    Table 5: Backlash Table 4: Deviations

    Max. Backlash

    Type Backlash

    GC-60 0,52

    GC-70 0,52

    GC-90 0,61

    GC-110 0,61

    GC-130 0,81

    GC-160 0,81

    GC-180 1,02

    GC-200 1,02

    GC-220 1,20

    GC-240 1,20

    GC-260 1,38

    GC-300 1,67

    GC-365 1,71

    GC-400 1,94

    GC-450 1,94

    GC-500 1,94

    GC-GEAR COUPLINGS

  • 11

    0%

    10%

    20%

    30%

    40%

    50%

    60%

    70%

    80%

    90%

    100%

    0,01 0,10 0,20 0,30 0,40 0,50 0,60 0,70 0,80 0,90 1,00

    To

    rqu

    e tr

    an

    sfe

    r, [

    % T

    n m

    ax]

    Angular misalignment, [ / Coupling]

    0.05 x n

    0.10 x n

    0.20 x n

    0.30 x n

    0.40 x n

    0.50 x n

    0.60 x n

    0.70 x n

    0.80 x n

    0.90 x n

    1.00 x n

    ALIG

    NM

    EN

    T P

    RE

    CIS

    IO

    N

    Diagram 1: Angular misalignment and velocity in relation to torque trans

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