INDUSTRIAL COUPLINGS

Bolted Couplings

UTAS API 671 Standard bolted coupling designs range from 6-inch overall diameter to 22.5-inch overall diameter for use in light- to heavy-duty applications. The bolted design configuration gives us greater flexibility to create custom designs using various material and diaphragm profiles.

Each bolted coupling selection can be customized for your application.

  1. Peak torque is 140% of the rated torque. Couplings subjected to transient conditions should be evaluated using the peak torque. Limit torque is 165% of the rated torque. Couplings subjected to a “one-time” momentary load should be evaluated using the limit torque.
  2. Axial deflection is based on the rated torque listed.
  3. Total parallel offset equals the value shown multiplied by the distance between flexures.
  4. Total coupling weight was calculated using an 18 in. DBSE and two hubs at maximum bore diameter.

* Contact Collins Aerospace engineering for coupling selections requiring: higher speed, axial/angular misalignment or torque.

Type SizeRated Torque
(in-lb)
Axial Deflection
(± in.)
Misalignment per End
(± Deg)
Parallel Offset
(in./in.)
Limit Speed
(RPM)
Coupling OD
(inches)
Max Taper Bore
(inches)
Coupling Weight
(lbs)
30519,0000.0630.3330.005831,0006.0552.7548.3
40526,0000.0500.2500.004437,0006.0552.7549.5
50532,0000.0390.2000.003541,0006.0552.7550.8
30638,0000.0750.3330.005831,0007.0553.4584.7
40651,0000.0600.2500.004432,0007.0553.4586.4
50663,0000.0460.2000.003532,0007.0553.4588.7
30883,0000.1060.3330.005824,0009.1754.75161.7
408113,0000.0850.2500.004425,0009.1754.75164.4
508141,0000.0610.2000.003525,0009.1754.75167.8
310158,0000.1250.3330.005820,00010.9305.95264.4
410211,0000.1000.2500.004421,00010.9305.95267.5
510264,0000.0760.2000.003521,00010.9305.95273.1
312289,0000.1560.3330.005816,00013.0507.33446.7
412386,0000.1250.2500.004417,00013.0507.33452.7
512482,0000.0910.2000.003517,00013.0507.33462.4
314429,0000.1750.3330.005814,00014.8058.32578.1
414572,0000.1400.2500.004415,00014.8058.32585.9
514715,0000.1010.2000.003515,00014.8058.32598.2
316682,0000.2060.3330.005812,00016.8059.66877.3
416910,0000.1650.2500.004413,00016.8059.66888.1
5161,138,0000.1120.2000.003513,00016.8059.66904.8
318925,0000.2310.3330.005810,00018.80510.671152.5
4181,234,0000.1850.2500.004411,00018.80510.671164.6
5181,543,0000.1310.2000.003511,00018.80510.671177.1
3221,763,0000.2810.3330.005810,00022.55013.102080.7
4222,352,0000.2250.2500.004411,00022.55013.102104.2
5222,938,0000.1550.2000.003511,00022.55013.102117.3

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