ATRA-FLEX A-Series Couplings

Reduce Cost of Maintenance and Downtime

For reliability and total low cost of ownership, customers turn to ATRA-FLEX flexible couplings. We are proud to provide

high-quality couplings that have been proven to increase efficiency and productivity for industrial applications worldwide since 1980.

How it Works

A-Series is the original patented ATRA-FLEX design. The A-Series close coupled couplings consist of four parts, two flex hubs, insert, and ring. The flex hubs are installed on the shafts with the ring fitted over the flex hub. After coupling alignment, the insert is placed around the flex hubs engaging with the bottom lobes of the insert. The ring is then fitted over and engaged with the insert. No fasteners or special tooling is required. In the event of a lockup, the insert will shear, minimizing the possibility of damaging your rotational equipment. The rugged polyurethane insert is the only spare part and can be replaced and inspected in minutes without having to move the equipment or the shaft hubs. The inserts are available in a range of hardness to meet most torsional stiffness and torque requirements and offers very high resistance to chemicals and temperature shifts.

 

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Features

  • Unique twist and lock-on ring means no fasteners or tools required to install the coupling.
  • No lubrication.
  • Withstands a temperature range from -60° to 350° Fahrenheit depending on insert type.
  • M-Series and T-Series available with upgraded features and a larger torque and bore capacity.

INSERT YELLOW
A00 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A11
CONTINUOUS (LB-IN) 105 265 340 1,325 2,650 5,300 13,230 21,200 42,350 79,400 120,300 300,000
INTERMITTENT (LB-IN) 176 411 819 2,205 4,410 8,820 22,050 35,280 70,560 132,300 200,500 500,000
INSERT RED
A00 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A11
CONTINUOUS (LB-IN) 89 225 289 1,126 2,253 4,505 11,246 18,020 35,998 67,490 102,255 255,000
INTERMITTENT (LB-IN) 150 349 696 1,874 3,749 7,497 18,743 29,988 59,976 112,455 170,425 425,000
INSERT ORANGE
A00 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A11
CONTINUOUS (LB-IN) 200 503 646 2,518 5,035 10,070 25,137 40,280 80,465 150,860 228,570 570,000
INTERMITTENT (LB-IN) 334 838 1,556 4,190 8,379 16,758 41,895 67,032 134,064 251,370 380,950 950,000
INSERT BROWN
A00 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A11
CONTINUOUS (LB-IN) 85 214 275 1,070 2,140 4,280 10,683 17,119 34,198 64,116 97,142 242,250
INTERMITTENT (LB-IN) 142 356 661 1,781 3,561 7,122 17,805 28,489 56,977 106,832 161,904 403,750