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An extremely high precision
coupling primarily used for power exchange between and impeller and a
driving shaft. Can also be used in shaft-to-shaft power transfer designs.
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High precision couplings for high speed power transfer.
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Made under rush time constraints
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Cryogenic gas compression applications
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Gas expanding impeller/turbine combinations
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High torque transfer ability
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Indexing of impeller to turbine allows for greater control during balancing
Gas turbine drive shaft
with V-Tooth coupling ground on end. 
Closed Aluminum
Impeller with a recessed V-Tooth coupling.

High speed
turbine shaft with V-Tooth coupling ground on end.

Gas turbine vain
diffusers with V-Tooth coupling ground on mating faces.

Hirth Coupling
ground on a 17-4 stainless steel impeller
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