Fenner Gear Couplings

Fenner Gear Coupling

MISALIGNMENT : The crowning 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.

SELECTION OF THE COUPLINGS :

The following details are required for selection of the coupling : 1. Type of driven machine.

  1. Power absorbed by the driven machine and Peak load.
  2. Speed and Diameter of the connecting shafts and space available for accommodating the coupling.
  3. Maximum misalignment to be compensated.
  4. Surrounding temperature.
  5. 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. Fenner gear coupling 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

  1. e) Coupling size : By referring to the Table, coupling size FGC 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 FGC 5 is selected for the application.

Custom built Fenner gear coupling / Gear Spacer Couplings and Torsion Shaft Gear Couplings are also manufactured & supplied as per requirements. Please contact Fenner with all details.

Fenner Gear Couplings
Fenner Gear Coupling
Fenner Gear Coupling
MISALIGNMENTS

Fenner Curved Tooth Flexible Gear Coupling are the result of many years of experience in the field of Mechanical Power Transmission.

These Fenner Gear Coupling are distinguished by their mechanical flexibility and compensation of Angular, Parallel and Axial misalignments of the connected shafts. They 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 Coupling basically consist of two hubs, with crowned external teeth and two outer sleeves with internal spur teeth.

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 interchangeability.

HUBS : The teeth of Fenner Gear Coupling 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 generated to ensure correct profile. The coupling sleeves are joined together with high tensile steel bolts (class 8.8 IS : 1367) fitted using a gasket in between them.

'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 temperature upto 120 C

SEAL CARRIERS : Seal carriers have been provided for sizes from FGC 11 to FGC 19 facilitate inspection and replacement of 'O' rings without disturbing the alignment.

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 Fenner 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 C and for temperature above 80 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 equivalant.

Fenner Gear Couplings
Half Flexible Couplings
Fenner Gear Couplings
Couplings Sizes 1 To 10
Fenner Gear Couplings
Couplings Sizes 11 To 19

Fenner Gear Coupling

 

Coupling No/Size Power at 100 rpm in Kw Maximum Torque in Nm Hub Bore (mm) Dimensions (mm)
Flex Rigid
Min. Max Max A B D E F G G1 H J
FGC 1 11.5 1100 14 55 60 170 115 17 55 5 78 90 110 65
FGC 2 28.5 2720 20 60 75 185 145 17 70 5 85 110 125 85
FGC 3 51.5 4920 30 75 90 220 175 20 85 5 107 130 150 105
FGC 4 96.5 9220 40 100 110 250 215 20 105 5 138 160 178 125
FGC 5 150 14320 46 120 130 290 240 25 115 10 166 185 204 140
FGC 6 230 21960 50 125 150 320 260 25 125 10 176 215 230 155
FGC 7 390 37250 60 145 170 350 290 25 140 10 208 240 260 175
FGC 8 515 49180 70 165 200 380 330 25 160 10 230 285 290 200
FGC 9 644 61500 80 200 220 430 340 25 165 10 270 315 332 210
FGC 10 930 88800 100 230 260 490 370 25 180 10 315 370 390 230
FGC 11 1265 120800 110 260 280 545 410 30 200 10 350 380 445 270
FGC 12 1600 152800 150 300 310 590 490 30 240 10 404 420 490 300
FGC 13 2880 275000 160 330 340 680 535 35 260 15 442 480 555 320
FGC 13 A 3980 380000 200 340 370 730 575 35 275 25 470 520 595 350
FGC 14 3980 380000 200 370 370 730 575 35 280 15 500 520 610 340
FGC 14 A 4765 455000 230 360 400 780 635 35 305 25 510 560 640 373
FGC 15 4765 455000 230 410 400 780 655 40 320 15 540 560 660 385
FGC 16 6800 650000 260 450 460 900 720 40 350 25 630 650 750 425
FGC 16 A 8375 800000 300 490 530 1000 815 40 385 25 700 750 855 470
FGC 17 9000 850000 300 520 530 1000 820 40 400 20 720 750 855 490
FGC 17 A 10730 1025000 320 540 570 1100 920 40 440 40 750 820 955 525
FGC 18 11800 1120000 320 620 570 1100 920 55 450 20 820 820 950 535
FGC 18 A 12700 1200000 400 600 700 1250 1000 55 475 50 840 920 1050 560
FGC 19 15500 1470000 400 710 700 1250 1000 55 485 30 915 920 1050 560

 

Coupling No/Size Maximum Speed RPM Approx. Weight in Kg. Approx. Gd2 Value
in Kg M 2
Clamping Bolt Size No. Of Bolts Max. Misalignment Capacity Amount of
Grease / Oil
Full Flex Half Flex Full Flex Half Flex Parallel
(mm)
Axial Float
(mm)
Angular per Gear Mesh Kg. Ltr.
FGC 1 6700 11 10.5 0.14 0.11 M12 x 50 6 0.80 0.5 1.5° 0.25 0.20
FGC 2 6100 16 15 0.21 0.18 M12 x 50 6 0.95 0.50 0.40
FGC 3 5200 26 26 0.45 0.44 M16 x 60 6 1.10 0.80 0.60
FGC 4 4500 41 42 0.98 0.88 M16 x 60 8 1.30 1.00 0.80
FGC 5 3950 63 63 1.90 1.90 M20 x 75 8 1.45 1.80 1.50
FGC 6 3500 86 87 3.05 3.06 M20 x 75 8 1.55 1.0 2.40 2.00
FGC 7 3250 120 120 5.25 5.20 M20 x 75 10 1.80 3.50 3.00
FGC 8 3000 165 170 8.52 8.63 M20 x 75 12 1.90 4.00 4.00
FGC 9 2600 210 220 15.00 15.00 M24 x 80 10 2.25 5.50 5.00
FGC 10 2300 310 320 28.67 29.00 M24 x 80 12 2.60 8.50 8.00
FGC 11 2100 454 430 52.00 46.18 M24 x 90 12 3.30 2.0 12.50 12.00
FGC 12 1900 630 590 88.60 76.57 M24 x 90 14 3.50 14.00 16.00
FGC 13 1550 887 850 155.00 140.00 M30 x 110 14 6.65 16.00 20.00
FGC 13 A 1400 1050 1050 215.00 203.00 M30 x 110 16 7.35 3.0 18.00 24.00
FGC 14 1400 1097 1050 230.00 203.00 M30 x 110 16 7.35 18.00 24.00
FGC 14 A 1350 1310 1350 300.00 305.00 M30 x 110 18 8.15 25.00 33.00
FGC 15 1350 1440 1350 352.00 305.00 M30 x 110 18 8.15 25.00 33.00
FGC 16 1150 2120 2000 670.00 611.20 M36 x 120 18 8.55 40.00 49.00
FGC 16 A 1050 3057 2900 1210.00 1132.00 M36 x 120 20 9.15 55.00 64.00
FGC 17 1050 3100 2900 1275.00 1132.00 M36 x 120 20 9.15 55.00 64.00
FGC 17 A 950 4196 4050 2030.00 1913.00 M36 x 120 20 9.65 60.00 72.00
FGC 18 950 4370 4050 2198.00 1913.00 M36 x 150 20 9.65 60.00 72.00
FGC 18 A 825 5430 5200 3410.00 3179.00 M48 x 160 20 10.25 70.00 80.00
FGC 19 825 5590 5200 3588.00 3179.00 M48 x 160 20 10.25 70.00 80.00
FGC 1 Coupling
Fenner FGC 1 Coupling
FGC 2 Coupling
Fenner FGC 2 Coupling
Fenner Coupling
Fenner FGC 3 Coupling
Fenner Coupling
Fenner FGC 4 Coupling
Fenner FGC 5 Couplings
Fenner FGC 6 Couplings
Fenner FGC 7 Couplings
Fenner FGC 8 Couplings
Fenner FGC 9 Couplings
Fenner Coupling
Fenner FGC 10 Coupling
FGC 11 Coupling
Fenner FGC 11 Coupling
Fenner Coupling
Fenner FGC 12 Coupling
Fenner Coupling
Fenner FGC 13 Coupling
Fenner FGC 13A Couplings
Fenner FGC 14 Couplings
Fenner FGC 14A Couplings
Fenner FGC 15 Couplings
Fenner FGC 16 Couplings
Fenner FGC 16A Couplings
Fenner FGC 17 Couplings
Fenner FGC 17A Couplings
Fenner FGC 18 Couplings
Fenner FGC 18A Couplings
Fenner FGC 19 Couplings