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Diaphragm coupling
Diaphragm coupling

DalianDiaphragm coupling

The diaphragm coupling is a metallic flexible coupling that can compensate for deviations in the radial, axial, and angular directions. Compared to conventional diaphragm couplings, it features a compact structure, strong corrosion resistance inherent in the diaphragm itself, high load-carrying capacity, light weight, and suitability for high rotational speeds.

Category:

DalianDiaphragm Disc Coupling

Phone: +86 24 25830257

Product Description

Product features:
The diaphragm coupling is a metallic flexible coupling that can compensate for deviations in the radial, axial, and angular directions. Compared to conventional diaphragm couplings, it features a compact structure, strong corrosion resistance inherent to the diaphragm disc itself, high load-carrying capacity, light weight, and suitability for high rotational speeds.

Application scenarios:
Suitable for industries such as compressors, high-speed turbines, fans, and pumps, and also applicable to various high-speed shaft transmission systems in sectors including petroleum, chemical engineering, and general machinery.

SK3 Series Diaphragm Coupling
It can compensate for angular misalignment of up to 1/3°. If a smaller overall dimension is required, you can choose the SK4 or SK5 series.



Figure: SK3 Series Diaphragm Coupling
 

Technical Parameters and Main Dimensions of the SK3 Series Diaphragm Couplings

Model Nominal torque
kN·m 		Peak torque
kN·m 		Instantaneous torque
kN·m 		Maximum rotational speed
revolutions per minute 		Maximum shaft hole d D L H Moment of inertia
kg·m² 		Weight
Kilogram 		Misalignment absorption capability
mm Axial mm Angular.
SK388 0.27 0.36 0.48 60000 40 88 50 60 0.002 2.52 0.8 0.33
SK3110 0.62 0.85 1.12 45000 50 110 60 80 0.005 4.71 1.0 0.33
SK3160 2.25 2.96 3.98 32000 75 160 90 115 0.03 12 1.5 0.33
SK3186 4.52 5.95 7.98 28000 95 186 100 140 0.07 19.9 2.0 0.33
SK3238 9.98 13.2 17.5 22000 125 238 140 190 0.28 45 2.5 0.33
SK3285 19.98 26.5 35.2 18000 155 285 180 235 0.75 81.5 3.2 0.33
SK3336 35.6 47 62.5 16000 190 336 200 285 2 140 4.0 0.33
SK3380 49.95 66.4 88.8 14000 215 380 240 325 3.7 202 4.5 0.33
SK3436 79.96 105.8 142.2 12000 250 436 280 380 7.8 320 5.1 0.33
SK3485 112.3 147.5 198.6 11000 280 485 320 425 13.5 432 5.7 0.33
SK3576 200 265.5 352 9000 340 576 390 510 35 750 7.0 0.33
SK3672 224.5 298.6 395.6 6500 400 672 450 600 80 1250 7.8 0.33
SK3835 448.8 598.2 791.3 5000 490 835 550 745 230 2350 9.8 0.33
SK31010 800.2 1058 1397 4000 600 1010 650 910 620 4200 12.0 0.33
SK31165 1398 1856 3272 3600 700 1165 780 1050 1270 6400 14.0 0.33


SK4 Series Diaphragm Coupling
It can compensate for angular misalignment of up to 1/4°. If a smaller overall dimension is required, you can choose the SK5 series; if greater compensation capability is needed, you can select the SK3 series.

Table SK4: Technical Parameters and Main Dimensions of the Diaphragm Coupling

Model Nominal torque
kN·m 		Peak torque
kN·m 		Instantaneous torque
kN·m 		Maximum rotational speed
revolutions per minute 		Maximum shaft hole d D L H Moment of inertia
kg·m² 		Weight
Kilogram 		Misalignment absorption capability
mm Axial mm Angular.
SK488 0.34 0.45 0.6 60000 40 88 50 60 0.002 2.53 0.6 0.25
SK4110 0.78 1.05 1.41 45000 50 110 60 80 0.005 4.89 0.8 0.25
SK4160 2.78 3.7 4.96 32000 75 160 90 115 0.031 12.8 1.2 0.25
SK4186 5.56 7.48 9.93 28000 95 186 100 140 0.072 20.3 1.5 0.25
SK4238 12.4 16.62 22 22000 125 238 140 190 0.288 46 2.0 0.25
SK4285 25.2 33 44.3 18000 155 285 180 235 0.772 83.2 2.5 0.25
SK4336 44.88 60 79.2 16000 190 336 200 285 2.02 145.7 3.1 0.25
SK4380 62.5 82.5 110 14000 215 380 240 325 3.75 205.4 3.5 0.25
SK4436 98.8 132 176.5 12000 250 436 280 380 7.96 324.1 4.1 0.25
SK4485 140.5 185 248.7 11000 280 485 320 425 13.72 438.6 4.5 0.25
SK4576 249.7 330 440 9000 340 576 390 510 35.61 757.7 5.5 0.25
SK4672 280.2 370 390 6500 400 672 450 600 80.43 1260 6.0 0.25
SK4835 558 745 985 5000 490 835 550 745 231.1 2380 7.6 0.25
SK41010 1118 1332 1966 4000 600 1010 650 910 622.3 4220 9.5 0.25
SK41165 1802 2386 3183 3600 700 1165 780 1050 1283 6420 11.0 0.25


SK5 Disc Coupling with Membrane
It can compensate for angular misalignment of up to 1/5. If a greater compensation capability is required, you can choose the SK3 or SK4 series.

Table SK5: Technical Parameters and Main Dimensions of the Membrane Disc Coupling

Model Nominal torque
kN·m 		Peak torque
kN·m 		Instantaneous torque
kN·m 		Maximum rotational speed
revolutions per minute 		Maximum shaft hole d D L H Moment of inertia
kg·m² 		Weight
Kilogram 		Misalignment absorption capability
mm Axial mm Angular.
SK588 0.48 0.65 0.85 60000 40 88 50 60 0.002 2.82 0.4 0.2
SK5110 1.1 1.5 1.95 45000 50 110 60 80 0.006 5.46 0.6 0.2
SK5160 4 5.3 7 32000 75 160 90 115 0.032 13.5 0.8 0.2
SK5186 8 10.5 14 28000 95 186 100 140 0.073 22.1 1.0 0.2
SK5238 17.7 24 32 22000 125 238 140 190 0.289 47.8 1.3 0.2
SK5285 35.2 47.5 61.2 18000 155 285 180 235 0.775 83.3 1.7 0.2
SK5336 62.5 82.8 109.8 16000 190 336 200 285 2.08 147.2 2.1 0.2
SK5380 88.7 120 156 14000 215 380 240 325 3.77 207.5 2.4 0.2
SK5436 140.2 185 245.3 12000 250 436 280 380 7.98 328.6 2.8 0.2
SK5485 198 265 349.7 11000 280 485 320 425 13.85 441.2 3.1 0.2
SK5576 350 470 630.4 9000 340 576 390 510 35.72 761.3 3.8 0.2
SK5672 400 528 705.8 6500 400 672 450 600 80.76 1265 4.2 0.2
SK5835 802 1052 1395 5000 490 835 550 745 232.2 2385 5.3 0.2
SK51010 1610 2119 2803 4000 600 1010 650 910 624.4 4230 6.5 0.2
SK51165 2495 3302 4411 3600 700 1165 780 1050 1288 6450 7.6 0.2

 

 

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