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Gear Couplings

Nylon Gear Couplings
Star Jaw Couplings

Curved Tooth Flexible Gear Couplings
AGNEE Gear Couplings are distinguished by their mechanical flexibility and compensation of Angular, Parallel and Axial misalignments of the connected shafts. Gear Couplings are made for extensive use in Metal Rolling Mills, Paper Machinery, Cranes, Dredgers, Rubber and Plastic Industries, Cement Plants, Conveyors and Elevators, Compressors, Fans and Blowers, Screens and other general industries. Flexible Gear Couplings basically consist of two hubs, with crowned external teeth and two outer sleeves with internal spur teeth. 
 

   
Coupling couplings

FEATURES: Gear Hubs and the outer sleeves are manufactured from carbon steel and are hardened to the required degree. They are machined to fine tolerances for proper meshing of the gears as well as for inter-changeability.

HUBS : The teeth of Gear Hubs are crowned and are generated by involute system. The amount of crowning and backlash values are so chosen as to ensure the best results in torque transmission, greater flexibility and smooth operations.

SLEEVES : The internal teeth of the sleeves are produced in gear shaper ensuring the correct profile. These teeth are also generated by involute system.

The coupling sleeves are joined together with high tensile steel (class 8.8 IS : 1367) fitted bolts.

'O' RINGS : The setting of special 'O' Rings at the ends of coupling hubs prevents leakage of lubricants and entry of dust. The 'O' rings can also withstand high degree of O temperature upto 120 C.

POWER RATINGS :The normal power ratings are given in the Table. For selection of the correct size of couplings, proper service factor depending on the type  of machines and the peak load should be considered.

SERVICE FACTOR :Generally, for medium duty use a service factor of 1.5. For heavy duty use a factor of 2 and for extra heavy duty a factor of 3 should be used. For special applications please contact AGNEE with full details.

LUBRICATION :The coupling must be filled with grease or oil. It is recommended to use grease where the maximum temperature is within 80 degree C and for temperature above 80 degree C, oil should be used.

When using grease it is suggested to fill the coupling completely with Lithium based grease with EP additives (NLGI-No.1 consistency). When the coupling is to be filled with oil, fill half the coupling with EP Gear Oil.

RECOMMENDATION FOR GREASE & OIL:
Grease : Indian Oil - Servogem - EP 1 or equivalent.
Oil : Indian Oil - Servomesh SP 680 or equivalent.

Features:
 

  • High Torque Rating
     
  • Large Bore Capacity
     
  • Interchangeability
     
  • Improved Lubrication System
     
  • Better Fastener Design

    Power rating and Dimensional Details in mm

     
  • Dimensions of Couplings Dimensions of Couplings
     
    Coupling No.
    NO. /SIZE

    H.P. per 100 rpm

    Torque
    rating
    in Kgm

    Hub Bore

    Max.

    Speed

    RPM

         Dimensions MM

    Weight in Kgs

    Approx. GD^2  Value  Kg m^2

    No. of Bolts

     

    Amount

    Grease / Oil

     

    Flexible

    Half

    Max.

    Max.

    A

    B

    D

    E

    F

    G

    G1

    H

    J

    Kg.

    Ltr

    AGC-0

    7

    50

    35

    50

    8000

    120

    93

    15

    45

    5

    50

    70

    75

    55

    4.2

    0.14

    6

    0.2

    0.2

    AGC-1

    14

    100

    50

    60

    6300

    170

    115

    17

    55

    5

    65

    85

    110

    65

    10.5

    0.21

    6

    0.3

    0.25

    AGC-2

    35

    250

    60

    75

    5000

    185

    145

    17

    70

    5

    85

    110

    125

    85

    15

    0.45

    6

    0.6

    0.5

    AGC-3

    63

    450

    75

    90

    4000

    220

    175

    20

    85

    5

    105

    130

    150

    105

    26

    0.98

    6

    1

    0.7

    AGC-4

    119

    850

    90

    110

    3300

    250

    215

    20

    105

    5

    130

    160

    178

    125

    42

    1.90

    8

    1.5

    1.5

    AGC-5

    182

    1300

    110

    130

    2800

    290

    240

    25

    115

    10

    155

    185

    204

    140

    63

    3.05

    8

    2.5

    2

    AGC-6

    280

    2000

    125

    150

    2500

    320

    260

    25

    125

    10

    175

    215

    230

    155

    87

    5.25

    8

    3

    2.5

    AGC-7

    490

    3500

    140

    170

    2100

    350

    290

    25

    140

    10

    205

    240

    260

    175

    120

    8.52

    10

    3.5

    3

    AGC-8

    630

    4500

    160

    200

    1900

    380

    330

    25

    160

    10

    230

    285

    290

    200

    170

    15.00

    12

    4.5

    4.5

    AGC-9

    784

    5600

    180

    220

    1700

    430

    340

    25

    165

    10

    250

    315

    332

    210

    220

    28.67

    10

    6

    6

    AGC-10

    1148

    8200

    220

    260

    1400

    490

    370

    25

    180

    10

    310

    370

    390

    230

    320

    52.00

    12

    8.5

    8

    MISALIGNMENT: The crowing of the teeth allows the coupling to withstand parallel misalignment upto a maximum of 10.25 mm and angular misalignment upto a maximum of 1.5 per gear mesh. The coupling can also absorb axial displacement of the shafts upto a maximum of 3 mm.


    misalignment of coupling

    FOR SELECTION OF THE COUPLINGS, THE FOLLOWING DETAILS ARE REQUIRED :
    1. Type of driven machine.
    2. Power absorbed by the driven machine and Peak load.
    3. Speed and Diameter of the connecting shafts space available for accommodating the coupling.
    4. Maximum misalignment to be compensated.
    5. Surrounding temperature.
    6. Any other special feature of the drive.

    Example : A gear couplings is required to transmit 250 KW from an Electric Motor running at 730 rev/min to a Pulper Machine. Considering the peak load as 180% of full load, the Motor shaft as 100 mm and the Pulper shaft as 110 mm, select a suitable gear coupling.

    a) Service factor : 2 (for heavy duty application)
    b) Peak load : 180% of full load.
    c) Design power : 250 x 180/100 x 2 = 900 KW
    d) Power to be transmitted at 100 rev/min : 900 x 100 / 730 = 123.3 KW
    e) Coupling size : By referring to the Table coupling size NGC 5, has got a rating of 150 KW at 100 rev/min which exceeds the required power of 123.3KW. The bore range is 60 mm to 110 mm. Hence, size AGC 5 is selected for the application.

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