Full Flexible Gear Couplings – A full gear coupling has a toothed hub which is fixed in both driver and driven shaft, and sleeves which has internal teeth meshing with the hub.These couplings have extensive applications in steel plants, cranes, conveyors, rolling mills, paper factories, rubber industry, sugar industry, thermal power houses, etc.
NU-TECK Straight Tooth Gear Teeth : Straight tooth gear couplings feature un-curved gear flanks that limit angular misalignment to just 0.5° per half coupling. Under heavy loads, this design concentrates stress at the tooth ends, often causing excessive play and premature wear
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.
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.
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.
Gear couplings are highly favored in heavy-duty industrial environments where high torque capacity and durability are required. Common uses include:
- Heavy machinery in steel and paper mills
- Conveyor systems
- Pumps, fans, and blowers
- Hoist mechanisms and crane drive.
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