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NC Series Ameriflex Diaphragm Couplings
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Ameridrives® International's reputation has been built on specialized designs for demanding applications. We are now pleased to offer the industry another coupling for a wider range of applications.
Designed specifically for the rigorous demands of the turbomachinery industry, the Ameriflex multiple convoluted diaphragm coupling was introduced in 1971. Since then, continuous refinements have made Ameriflex the industry leader in reliability and design flexibility. The new NC Series Ameriflex was developed as a natural extension of our proven designs, using the latest engineering technologies.
Fewer parts combined with modern manufacturing techniques, result in a cost-effective coupling while maintaining the same quality and performance standards proven by over 25 years experience with thousands of Ameriflex operating trouble free.
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Available in both NC and NCS series.
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Simplified, economical design
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Meets API-671 requirements
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Diaphragms designed for infinite life using FEA verified by strain gage and dynamic testing
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15-5 PH integral filler diaphragms maintain flex area separation
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¼° misalignment
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Low axial and bending loads
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Piloted construction for low repeatable unbalance
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Maintenance free for years of dependable service
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Inherent fail-safe feature of the multiple diaphragm design
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Coupling Data - NC Series
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Coupling
Size
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Max. Cont.
Torque
(In.-lb.)
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Peak
Torque
(In.-lb.)
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Rated
Speed
(RPM)
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Max.
Axial
Travel
(in.)
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Coupling
O.D.
(in.)
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Shaft to
Shaft
Min.
(in.)
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Bore
Dia.
Max.
(in.)
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7
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53,000
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80,000
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10,000
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.050
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7.12
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5.06
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4.00
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9
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120,000
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180,000
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10,000
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.090
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9.81
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5.75
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5.50
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11
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210,000
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315,000
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10,000
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.120
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11.75
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5.94
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6.50
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13
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333,000
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500,000
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8,000
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.140
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13.56
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7.63
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7.75
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15
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500,000
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750,000
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8,000
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.160
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15.56
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7.81
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9.00
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