An ISO 9001:2015 Company

Half Flexible Gear Couplings

Under the misalignment condition of two shafts of the equipment, the teethcontact in case of straight cut hub will be as minimum as shown in the figure No. 1

Under heavy loads the ends of the hub teeth will get damaged resulting in the excessive play between hub & sleeve. And, therefore, the reduction in life of coupling.

NU-TECK TRIPLE-CROWNED TEETH
The triple crowned teeth hub is manufactured on a fully automatic hobbing machine with built in crowing attachment which is controlled by hydraulic & electronic systems. Under the misalignment condition of two shafts on the equipment, due to the curvature on teeth flank the contact area is much more and therefore, there is increase in life of coupling.

MISALIGNMENT DETAILS : In case of straight tooth gear coupling the maximum allowable anguler misalignment (μ) is 1.1/2 deg. and in case of NUTECK Triple Crowned tooth Gear Coupling the misalignment is 7.1/2 deg.

SERVICE FACTOR PRIMER MOVER
Driven Unit (Machinery) Electric Motor
or Steam Turbine
Gasoline
or Diesel Engine 4
or mor cyl.
Gasoline
or Diesel Engine,
more then 6 cyl.
LIGHT :
Uniform of Steady load never exceeding horse rating, infrequent starting; Agitators,
Blowers, Can Filling Machines, Conveyors, Fans, Generators, Pumps, Steering Gear,
Stokers.
1.0 1.5 2.0
MODERATE :
Heavy inertia, moderate shock, frequent starting; peak loads do not exceed 125 per cent
average horsepower. Uneven load : Conveyors, Feeders, Welding, Laundry Washers,
Mixers, Paper Mills, Printing Presses, Screens, Textile Industry, Car Pullers.
1.5 2.0 2.5
HEAVY :
Heavy shock conditions or frequent reversing peak loads do not exceed 150 per cent
average horse power. Uneven load. Cranes & Hoists, Crushers, Dredges, Elevators,
Hammer Mills, Lumber Industry, Machine Tools, Metal Mills, Oil Industry, Rubber Industry,
windlass.
2.0 2.5 3.0

NU-TECK
G. C. NO.
LOAD CAPACITY Max.
R.P.M.
Bore
Min.
Bore
Max.
DIMENSION IN MM WR2
Kgm2
Wt.
In Kg.
H. P.
Capacity at
100 R.P.M.
Max.
Torque
Kg. M.
A B C D F G H J M Q F1
GC-100 7 50 8000 12 45 120 93 45 50 75 1.5 15 40 55 46.5 70 0.04 5
GC-101 17 125 6300 20 60 170 115 55 65 110 2.5 17 49 65 57.5 85 0.15 11
GC-102 42 300 5000 30 75 185 145 70 85 125 2.5 17 62 80 72.5 110 0.24 15
GC-103 75 540 4000 40 90 220 175 85 105 150 2.5 20 78 105 87.5 130 0.51 20
GC-104 135 985 3350 50 110 250 215 105 130 175 2.5 20 96 125 107.5 160 1.0 40
GC-105 210 1505 2800 60 130 290 230 110 155 204 5 25 108 140 115 185 2.0 60
GC-106 325 2330 2500 75 150 320 260 125 175 235 5 25 118 155 130 215 3.3 80
GC-107 560 4000 2100 90 170 350 290 140 205 265 5 25 136 175 145 240 5.8 106
GC-108 720 5140 1900 105 200 380 320 155 230 295 5 25 149 190 160 285 9.5 149
GC-109 895 6400 1700 125 220 430 340 165 250 336 5 27 160 205 170 315 16.8 170
GC-110 1290 9225 1400 140 260 490 370 180 310 396 5 27 175 220 185 370 35.0 264