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Isoflex Technologies Component

Gearbox Coupling IFC-6400-HT

Isoflex IFC-6400-HT flexible coupling for 6-bolt gearbox flanges: 152.4 mm bolt circle, 195 mm OD, rated 4400 Nm heavy duty / 6600 Nm medium duty.

Description

The Isoflex IFC-6400-HT is a flexible gearbox coupling for 6-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: 152.4 mm (6 in)
  • Gearbox flange bolt size: M16 SHCS
  • Gearbox flange index ring type: M (male)
  • Gearbox flange index ring diameter: 95.25 mm (3 3/4 in)
  • Coupling outside diameter: 195 mm (7.68 in)
  • Coupling inside diameter: 73 mm (2.87 in)
  • Coupling thickness: 38 mm (1 1/2 in)
  • Approx. weight incl. bolt set: 3.8 kg (8.4 lb)

Torque ratings

  • Heavy duty: 4400 Nm (3240 ft-lb)
  • Medium duty: 6600 Nm (4860 ft-lb)
  • Pleasure craft: 7480 Nm (5510 ft-lb)

Specifications

Feature Metric Imperial
Gearbox Flange Bolt Circle Diameter 152.4 [6"] 6
Gearbox Flange Bolt Size M16 SHCS M16 SHCS [5/8" approx.]
Gearbox Flange Index Ring Type M M
Gearbox Flange Index Ring Diameter 95.25 [3 3/4"] 3 3/4
Isoflex Coupling Outside Diameter 195 7.68
Isoflex Coupling Inside Diameter 73 2.87
Isoflex Coupling Thickness 38 1 1/2
Heavy Duty 4400 3240
Medium Duty 6600 4860
Pleasure Craft 7480 5510
Approx Weight incl. Bolt Set 3.8 8.4

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