Ameridrives (Zurn) Couplings
Ameriflex®
DIAPHRAGM COUPLINGS NC SERIES

Ameriflex NC Series Coupling

Ameriflex NC Series Coupling

Ameriflex Diaphragm Couplings NC Series

Ameridrives International's reputation has been built on specialized designs for demanding applications. We are now pleased to offer the industry another diaphragm 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 NC series Ameriflex was developed as a natural extension of our proven designs, using the latest engineering technologies.

Fewer parts combined with modern manufacturing technlogies, result in a cost-effective coupling while maintaining the same quality and performance standards proven by over 25 years experience with thousands of Ameriflex Couplings operating trouble-free.

Advantages and Features
  • Simplified economical design

  • Meets API-671 requirements

  • Diaphragms designed for infinite life using FEA verified by strain gage and dynamic testing

  • 15-5 PH integral filler diaphragms maintain flex area separation

  • 1/4 degree misalignment

  • Low axial and bending stiffness

  • Piloted construction for low repeatable unbalance

  • Maintenance free for years of dependable service

 

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Coupling Data - NC Series
Coupling Size Max. Torque in.-lb. Peak Torque in.-lb. Rated Speed RPM Max. Axial Travel in. Coupling O.D. in. Shaft to Shaft Min. in. Bore Diam. Max. in.
7 53,000 80,000 10,000 .050 7.12 5.06 4.00
9 120,000 180,000 10,000 .090 9.81 5.75 5.50
11 210,000 315,000 10,000 .120 11.75 5.94 6.50
13 333,000 500,000 8,000 .140 13.56 7.63 7.75
15 500,000 750,000 8,000 .160 15.56 7.81 9.00
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Specializing in:
Flexible Gear Couplings
Diaphragm Couplings NC Series
Americardan Universal Joints
Flexible Mill Spindles
Metal Labyrinth Seal Couplings
High Performance Class I Gear Couplings
High Performance Multiple-convoluted Diaphragm Couplings
Repair and Maintenance