Full Flexible Gear Couplings

Under the misalignment condition of two shafts of the equipment, the teeth contact 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. This leads to 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 crowning attachment. It 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. Thus, in turn, there is an increase in the life of the coupling.

Misalignment Details

In case of straight tooth gear coupling the maximum allowable angular misalignment (μ) is .1/2 deg. and in case of Nu-Teck Triple Crowned Tooth Gear Coupling the misalignment is 1.1/2 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 steady load never exceeding horse rating. Infrequent starting. Agitators, Blowers, Can Filling Machines, Conveyors, Fans, Generators, Pumps, Steering Gears, Stokers	1.0	1.5	2.0
MODERATE : Heavy inertia, moderate shock, frequent starting. Peak loads do not exceed 125% 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% average horsepower. 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.
NU-TECK G. C. NO.	H. P. Capacity at 100 R.P.M.	Max. Torque Kg. M.	Max. R.P.M.	Bore Min.	Bore Max.	A	B	C	D	F	G	H	J	M	WR² Kgm²	Wt. In Kg.
GC-100	7	50	8000	12	32	120	93	45	50	75	3	15	40	55	0.03	4.5
GC-101	17	125	6300	20	45	170	115	55	65	110	5	17	49	65	0.14	11
GC-102	42	300	5000	30	60	185	145	70	85	125	5	17	62	80	0.20	15
GC-103	75	540	4000	40	75	220	175	85	105	150	5	20	78	105	0.48	25
GC-104	135	985	3350	50	90	250	215	105	130	175	5	20	96	125	0.95	39
GC-105	210	1505	2800	60	110	290	230	110	155	204	10	25	108	140	1.90	57
GC-106	325	2330	2500	75	125	320	260	125	175	235	10	25	118	155	3.00	85
GC-107	560	4000	2100	90	140	350	290	140	205	265	10	25	136	175	5.25	103
GC-108	720	5140	1900	105	160	380	320	155	230	295	10	25	149	190	8.50	138
GC-109	895	6400	1700	125	180	430	340	165	250	336	10	27	160	205	15.00	210
GC-110	1290	9225	1400	140	220	490	370	180	310	396	10	27	175	220	30.50	277

NU-TECK G. C. NO.	Load Capacity		Max. R.P.M.	Bore Min.	Bore Max.	Dimension In MM									WR² Kgm²	Wt. In Kg.
NU-TECK G. C. NO.	H. P. Capacity at 100 R.P.M.	Max. Torque Kg. M.	Max. R.P.M.	Bore Min.	Bore Max.	A	B	C	D	F	G	H	J	M	WR² Kgm²	Wt. In Kg.
GC-111	1700	12220	1250	160	260	545	410	200	350	451	10	30	192	240	58	550
GC-112	2250	16170	1120	180	300	590	490	240	405	496	10	30	231	280	88	710
GC-113	3025	21660	1000	200	330	680	535	260	440	566	15	35	242	310	138	980
GC-114	4300	30800	900	220	370	730	575	280	500	616	15	35	266	330	291	1320
GC-115	5200	37230	800	250	410	780	655	320	550	666	15	35	305	370	353	1700
GC-115 M	7480	53570	750	300	420	825	690	335	558	690	20	45	320	400	500	2000
GC-116	8380	60000	710	300	455	900	720	350	630	775	20	45	330	420	691	2550
GC-116 M	10145	72000	670	330	480	950	770	375	680	810	20	45	340	460	965	3100
GC-117	11917	85350	630	375	520	1000	820	400	720	855	20	45	386	460	1235	3620
GC-118	15778	113000	560	450	610	1100	920	450	810	950	20	55	430	510	1965	4860

Full Flexible Gear Couplings

NU-TECK Triple Crowned Teeth

Misalignment Details

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