Contoured Diaphragm Flexible Couplings

  • Exceptional balance repeatability
  • Weld free design eliminates weld zone material degradation
  • Modular bolted and splined components allow for easy maintenance 

Built To Any Specification

  • Available configurations include API 671”,  API 610” , AGMA 9000 & 9110 balance, AGMA 9002 & 9112 keyed fits, AGMA 9003 & 9103 keyless fits
  • Low and High Speed Bolted Designs
  • Low moment configuration available
  • Can be built to accommodate torque management devices and other accessories

Standard Rating Specifications

DesignationOD (in)Rated Torque (in-lbs)Peak Torque (in-lbs)Limit Torque (in-lbs)Axial Misalignment (in-lbs)Angular Misalignment (deg)Rated Speed (RPM)
3066.0019,00024,70030,3500.0540.3320,000
4066.0027,80034,20043,1000.0440.2520,000
5066.0032,00041,80051,7800.0360.2020,000
3077.2036,20046,60057,1000.0680.3318,000
4077.2051,80064,10080,3000.0550.2518,000
5077.2061,80080,500100,1100.0440.2018,000
3088.7069,00085,800110,0000.0940.3316,000
4088.7098,000120,900147,0000.0680.2516,000
5088.70117,000150,000189,5000.0550.2016,000
31010.50131,300167,300210,0000.1120.3313,000
41010.50184,000231,000285,5000.0850.2513,000
51010.50220,200286,200356,7000.0670.2013,000
31212.60250,200325,200400,4000.1360.3311,000
41212.60339,500432,200543,3000.1060.2511,000
51212.60416,000540,800673,9000.0820.2011,000
31515.20476,700619,700763,0000.1650.3310,000
41515.20638,000815,1001,020,8000.130.2510,000
51515.20784,2001,019,5001,270,4000.10.2010,000
31818.30906,0001,177,8001,450,0000.1960.339,000
41818.301,190,0001,516,5001,904,0000.160.259,000
51818.301,480,0001,924,0002,397,6000.1220.209,000
32222.001,730,0002,212,9002,681,0000.240.338,000
42222.002,210,0002,797,0003,481,0000.1970.258,000
52222.002,793,0003,630,0004,525,0000.1480.208,000

Ratings shown above are consistent with API 671. Please contact us directly if your application has additional requirements not covered in the table.