Isoflex Technologies Component
Gearbox Coupling IFC-4200-90
Isoflex IFC-4200-90 flexible coupling for 4-bolt gearbox flanges: 78 mm bolt circle, 125 mm OD, rated 400 Nm heavy duty / 600 Nm medium duty.
Description
The Isoflex IFC-4200-90 is a flexible gearbox coupling for 4-bolt gearbox output flanges. Isoflex couplings provide a sacrificial link designed to fail before gearbox damage occurs, allow controlled engine movement to isolate vibration and help alleviate thrust-induced driveline misalignment. Designed for marine use, they are also used in industrial drivelines.
Technical data
- Gearbox flange bolt circle diameter: 78 mm (3.07 in)
- Gearbox flange bolt size: M10
- Gearbox flange index ring type: F (female)
- Gearbox flange index ring diameter: 50 mm (1.97 in)
- Coupling outside diameter: 125 mm (4.92 in)
- Coupling inside diameter: 35 mm (1.38 in)
- Coupling thickness: 25.0 mm (1 in)
- Approx. weight incl. bolt set: 0.8 kg (1.8 lb)
Torque ratings
- Heavy duty: 400 Nm (290 ft-lb)
- Medium duty: 600 Nm (440 ft-lb)
- Pleasure craft: 680 Nm (500 ft-lb)
Specifications
| Feature | Metric | Imperial |
|---|---|---|
| Gearbox Flange Bolt Circle Diameter | 78 | 3.07 |
| Gearbox Flange Bolt Size | M10 | M10 [3/8" approx.] |
| Gearbox Flange Index Ring Type | F | F |
| Gearbox Flange Index Ring Diameter | 50 | 1.97 |
| Isoflex Coupling Outside Diameter | 125 | 4.92 |
| Isoflex Coupling Inside Diameter | 35 | 1.38 |
| Isoflex Coupling Thickness | 25.0 | 1 |
| Heavy Duty | 400 | 290 |
| Medium Duty | 600 | 440 |
| Pleasure Craft | 680 | 500 |
| Approx Weight incl. Bolt Set | 0.8 | 1.8 |
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