Shaft Couplings
DYNALINE | GEAR GRIP | GUARDEX STYLE 'M' | GUARDEX STYLE 'I' | SUPERFLEX
GUARDEX 'LJW' STRAIGHT JAW COUPLING | GUARDEX TAPERED GRID COUPLING
GUARDEX 'SWJW' WRAP CHANGE-IN-PLACE JAW COUPLING | GUARDEX CURVED JAW COUPLING
GUARDEX DISC MEMBRANE COUPLING | GUARDEX 'SG' STEEL GEAR | OIL BURNER COUPLINGS
SUPERFLEX The Guardian SUPERFLEX Coupling consists of two cast iron (GGG40) hubs, a super elastic flexible rubber element of 55° shore "A" hardness, and bolts with self locking nuts required for assembly. The rubber elements are provided with an outer metallic band that is to be removed after mounting. This allows the rubber to expand from its original pre-stressed condition. As a result of this, the allowable torsional load of the rubber element is influenced favorably, i.e., a lower tensile stress and a higher permissible vibratory torque load. The SUPERFLEX Coupling has been used world-wide on a variety of applications including light towers, gen-sets, compressors, welding sets and other construction machinery with large driven inertias. |
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| Electric motor or engine with 4 or more cylinders | Engine with 2-3 cylinders | Single-cylinder engine | |
| Light duty (e.g. conveyer belts) |
1.0 | 1.3 | 1.7 |
| Medium duty (e.g. washing machines) |
1.3 | 1.7 | 2.0 |
| Heavy Duty (e.g. dredging engines) |
1.7 | 2.0 | 2.3 |
| Extra Heavy (e.g. hammer mills) |
2.0 | 2.3 | 2.7 |
| Torsional Angle | Axial Displacement | Radial Displacement | Angular Displacement |
| nom. 8º max. 20º |
nom. .125-.379 max. .250-.785 |
nom. .040-.080 max. .080-.156 |
nom. 2-3º max. 4-6º |
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| SF-4 | SF-8 | SF-16 | SF-27 | SF-55 | SF-80 | SF-120 | SF-240 | |||
| TKN TKmax nmax |
nom. torque max. torque max. speed |
IN# IN# RPM | 384 885 9,000 | 708 1,770 7,500 | 1,416 3,540 6,500 | 2,390 6,549 5,000 | 4,868 12,213 4,000 | 7,080 17,258 3,500 | 10,620 26,108 3,000 | 21,240 52,215 2,000 |
| dmax | max. bore | IN | 1.102 | 1.378 | 1.654 | 2.362 | 2.952 | 3.346 | 3.740 | 5.118 |
| D | DIME NSIONAL DATA | IN | 4.173 | 5.276 | 5.945 | 7.520 | 9.449 | 10.236 | 10.157 | 13.228 |
| D1 | IN | 2.559 | 3.346 | 3.937 | 5.197 | 6.693 | 7.323 | 8.268 | 11.024 | |
| D2 | IN | 1.575 | 2.047 | 2.520 | 3.521 | 4.331 | 5.039 | 5.709 | 7.874 | |
| D3 | IN | 3.583 | 4.646 | 5.591 | 7.126 | 9.213 | 10.000 | 11.063 | 14.961 | |
| L | IN | 3.976 | 4.567 | 5.827 | 6.181 | 8.189 | 10.197 | 11.811 | 14.961 | |
| L1 | IN | 1.437 | 1.654 | 2.007 | 2.106 | 2.874 | 3.760 | 4.370 | 5.512 | |
| N1 | IN | -- | -- | -- | -- | -- | -- | 3.543 | 4.646 | |
| L2 | IN | 1.102 | 1.260 | 1.811 | 1.969 | 2.441 | 2.677 | 3.071 | 3.937 | |
| L3 | IN | .453 | .453 | .531 | .551 | .787 | 1.063 | 1.102 | 1.260 | |
| M | weight | # | 4.41 | 6.62 | 11.00 | 24.25 | 48.50 | 70.56 | 92.61 | 187.43 |
| J | mass mom. of inertia | # IN SEC2 | .023 | .053 | .106 | .319 | 1.142 | 1.690 | 1.903 | 6.859 |
| CTdyn | dyn, torsional stiffness | IN #/ RAD |
2,522 | 5,045 | 10,089 | 18,762 | 38,055 | 60,446 | 127,440 | 469,935 |
| bolts, DIN 912 (8.8) | 6 x M8x60 |
6 x M10x55 |
6 x M12x75 |
6 x M14x80 |
6 x M20x110 |
6 x M20x120 |
8 x M20x130 |
8 x M27x160 |
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| tightening torque-bolts | FT# | 19 | 37 | 59 | 96 | 295 | 295 | 295 | 738 | |
NOTE: IN# / 8.85 = NM (Newton Meters)
COUPLING ASSEMBLY INSTRUCTIONS | COUPLING SELECTION | POWER RATINGS
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