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Torsional flexible couplings

Sprocket elastic polyurethane (YELLOW) - "92 Shore A"

Code rpm / 1 ' Torques (Nm)
TK normal TK Kg.
max max.  
GEB SG 9FF 28.000 3,0 6,0 0,002
GEB SG 14 FF 19.000 7,5 15,0 0,005
GEB SG 19-24 FF 14.000 10,0 20,0 0,007
GEB SG 24-28 FF 10.600 35,0 70,0 0,018
GEB SG 28-38 FF 8.500 95,0 190,0 0,029
GEB SG 38-45 FF 7.100 190,0 380,0 0,049

Sprocket elastic polyurethane (RED) - "98 Shore A"


Code rpm / 1 '
Torques (Nm)
TK normal TK Kg.
max max.  
GEB SG 9 FF 28.000 5,0 10,0 0,002
GEB SG 14 FF 19.000 12,5 25,0 0,005
GEB SG 19-24 FF 14.000 17,0 34,0 0,007
GEB SG 24-28 FF 10.600 60,0 120,0 0,018
GEB SG 28-38 FF 8.500 160,0 320,0 0,029
GEB SG 38-45 FF 7.100 325,0 650,0 0,049

TORSIONAL FLEXIBLE COUPLINGS “GEB HRC”

Material Cast iron GG25
Code Hole(d) Hole max Dimensions
A D M N R L Kg
mm
GEB HRC 70 8 32 23,5 69 60 18,0 20,0 65,0 0,60
GEB HRC 90 10 42 30,0 85 70 22,5 26,0 82,5 1,07
GEB HRC 110 10 55 45,0 112 100 29,0 37,0 119,0 3,05
GEB HRC 130 15 60 55,5 130 105 36,0 47,0 147,0 4,45
GEB HRC 150 20 70 60,0 150 115 40,0 50,0 160,0 6,10
GEB HRC 180 25 80 70,0 180 125 49,0 58,0 189,0 9,20
GEB HRC 230 25 100 90,0 225 155 59,5 77,0 239,5 17,75
GEB HRC 280 30 115 105,5 275 206 74,5 90,0 285,5 35,75

TORSIONAL FLEXIBLE COUPLINGS FOR TAPER BUSHES - “GEB HRC TL”

Material Cast iron GG25
Code Bushing Diameter of the hole(d) Dimensions
min. max. A D M N R L Kg
mm
GEB HRC 70 TL 1008 11 25 23.5 69 60 18.0 20.0 65 0.44
GEB HRC 90 TL 1108 11 28 23.5 85 70 22.5 19.5 69.5 0.72
GEB HRC 110 TL 1610 12 42 26.5 112 100 29.0 18.5 82 1.60
GEB HRC 130 TL 1610 12 42 26.5 130 105 36.0 18.0 89 2.27
GEB HRC 150 TL 2012 15 50 33.5 150 115 40.0 23.5 107 3.30
GEB HRC 180 TL 2517 19 65 46.5 180 125 49.0 34.5 142 5.37
GEB HRC 230 TL 3020 25 75 52.5 225 155 59.5 39.5 164.5 9.53
GEB HRC 280 TL 3525 35 90 66.5 275 206 74.5 51.0 207.5 20.50

TORSIONAL FLEXIBLE COUPLINGS “GEB HRC”

Sprocket rubber band (black)


Code rpm / 1 '
max
Torques (Nm)
TK normal TK max. Kg.
GEB HRC 70 8.100 31 72 0.016
GEB HRC 90 6.500 80 180 0.050
GEB HRC 110 5.200 160 360 0.080
GEB HRC 130 4.100 315 720 0.150
GEB HRC 150 3.600 600 1.500 0.220
GEB HRC 180 3.000 950 2.350 0.380
GEB HRC 230 2.600 2.000 5.000 0.800
GEB HRC 280 2.200 3.150 7.200 1.530

Code Maximum offset  Axial displacement
Angular Radial S
ka (< ) kr(mm) (mm)
GEB HRC 70 1,0° 0,3 +0,2
GEB HRC 90 1,0° 0,3 +0,5
GEB HRC 110 1,0° 0,3 +0,6
GEB HRC 130 1,0° 0,4 +0,8
GEB HRC 150 1,0° 0,4 +0,9
GEB HRC 180 1,0° 0,4 +1,1
GEB HRC 230 1,0° 0,5 +1,3
GEB HRC 280 1,0° 0,5 +1,7


(1) Valid values ​​for n = 600 rpm and considered individually.
For speeds above 600 rpm there is a reduction of
values ​​for offset and displacement.
≤ 0.8 601 - 1000 min-1, rpm
≤ 0.65 1001 - 1500 min-1, rpm
≤ 0.50 1501 - 3000 min-1, rpm


GEAR COUPLINGS “GFB”

Code Hole
Hole MAX
Sleeve Standard hub Long hub
Ød1 Ød2 Ødh B Weight øD C Weight øD C1 Weight
mm   Kg mm   Kg mm   Kg
GFB-14 - 15 40 37 0,02 24 23 0,09 24 40 0,15
GFB-19 - 20 48 37 0,03 30 25 0,15 30 40 0,23
GFB-24 - 24 52 41 0,04 36 26 0,22 36 50 0,40
GFB-28 - 28 66 46 0,07 44 40 0,50 44 55 0,69
GFB-32 - 32 76 48 0,09 50 40 0,67 50 55 0,90
GFB-38 - 38 83 48 0,11 58 40 0,80 58 60 1,30
GFB-42 - 42 92 50 0,14 65 42 1,17 65 60 1,60
GFB-48 - 48 95 50 0,16 67 50 1,43 67 60 1,70
GFB-65 23 65 132 68 0,37 96 55 3,20 96 70 4,05

Code G E M N GFB-SS GFB-SL GFB-LL
L Weight L1 Weight L2 Weight
mm Kg mm Kg mm Kg
GFB-14 4 15 23,5 6,5 50 0,20 67 0,26 84 0,32
GFB-19 4 20 23,5 8,5 54 0,33 69 0,41 84 0,49
GFB-24 4 24 31,5 7,5 56 0,48 80 0,66 104 0,84
GFB-28 4 28 34 19 84 1,07 99 1,26 114 1,45
GFB-32 4 32 33 18 84 1,43 99 1,66 114 1,89
GFB-38 4 38 38 18 84 1,71 104 2,21 124 2,71
GFB-42 4 42 37 19 88 2,48 106 2,91 124 3,34
GFB-48 4 48 37 27 104 3,02 114 3,29 124 3,56
GFB-65 4 65 38 23 114 6,77 129 7,62 144 8,47

GEAR COUPLINGS “GFB”

Characteristics
- Consist in two curved toothed hubs made in steel and one internally toothed sleeve made in
polyamide;
- Able to compensate for axial, radial and angular misalignments of the connected shafts;
- Steel and polyamide combination makes maintenance-free;
- Easy to be mounted both in vertical and horizontal planes;
- Suitable for temperatures from -25° to +100°"


Code Couple Power factor Transmitted power (KW rpm / 1 ')
Nm P/n 750 1000 1500 3000 rpm/ 1 ' J*
norm. max norm. max norm. max norm. max norm. max norm. max max Kg cm2
GFB-14 10 20 0,0010 0,0021 0,79 1,57 1,05 2,09 1,57 3,14 3,14 6,28 14000 0,3
GFB-19 16 32 0,0017 0,0034 1,26 2,51 1,68 3,35 2,51 5,03 5,03 10,05 11800 0,5
GFB-24 20 40 0,0021 0,0042 1,57 3,14 2,09 4,19 3,14 6,28 6,28 12,57 10600 1,0
GFB-28 45 90 0,0047 0,0094 3,53 7,07 4,71 9,42 7,07 14,14 14,14 28,27 8500 3,1
GFB-32 60 120 0,0063 0,0126 4,71 9,42 6,28 12,57 9,42 18,85 18,85 37,70 7500 5,5
GFB-38 80 160 0,0084 0,0168 6,28 12,57 8,38 16,75 12,57 25,13 25,13 50,26 6700 8,7
GFB-42 100 200 0,0105 0,0209 7,85 15,71 10,47 20,94 15,71 31,41 31,41 62,83 6000 14,3
GFB-48 140 280 0,0147 0,0293 10,99 21,99 14,66 29,32 21,99 43,98 43,98 87,96 5600 18,4
GFB-65 380 760 0,0398 0,0796 29,84 59,69 39,79 79,58 59,69 119,37 119,37 238,74 4000 109,0

Mounting instructions
1) Fix the two hubs to the shafts. The inner sides of the hubs must be aligned with the shaft ends;
2) Insert the sleeve on the two hubs and adjust the distance of elements as per size “G”;
3) Fix to this position the two elements to be coupled;
4) The sleeve must be free to move axially.


Codice Maximum offset for each hub Axial displacement
ka (<) kr(mm) (mm)
GFB-14 ± 2° ± 0,3 ±1
GFB-19 ± 2° ± 0,4 ±1
GFB-24 ± 2° ± 0,4 ±1
GFB-28 ± 2° ± 0,5 ±1
GFB-32 ± 2° ± 0,5 ±1
GFB-38 ± 2° ± 0,5 ±1
GFB-42 ± 2° ± 0,5 ±1
GFB-48 ± 2° ± 0,5 ±1
GFB-65 ± 2° ± 0,6 ±1

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