Gearbox Coupling IFC-4500IV-HT

Name: Gearbox Coupling IFC-4500IV-HT
Brand: Isoflex Technologies

Isoflex IFC-4500IV-HT flexible coupling for 4-bolt gearbox flanges: 107.95 mm bolt circle, 150 mm OD, rated 1180 Nm heavy duty / 1770 Nm medium duty.

Description

The Isoflex IFC-4500IV-HT 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. As part of the IV range, it is developed to operate in the tensile condition created by integral V-drives.

Technical data

Gearbox flange bolt circle diameter: 107.95 mm (4 1/4 in)
Gearbox flange bolt size: 7/16" UNF
Gearbox flange index ring type: F (female)
Gearbox flange index ring diameter: 63.5 mm (2 1/2 in)
Coupling outside diameter: 150 mm (5.91 in)
Coupling inside diameter: 54 mm (2.13 in)
Coupling thickness: 36 mm (1.42 in)
Approx. weight incl. bolt set: 1.5 kg (3.3 lb)

Torque ratings

Heavy duty: 1180 Nm (860 ft-lb)
Medium duty: 1770 Nm (1300 ft-lb)
Pleasure craft: 2000 Nm (1470 ft-lb)

Specifications

Feature	Metric	Imperial
Gearbox Flange Bolt Circle Diameter	107.95 [4 1/4"]	4 1/4
Gearbox Flange Bolt Size	7/16" UNF	7/16" UNF
Gearbox Flange Index Ring Type	F	F
Gearbox Flange Index Ring Diameter	63.5 [2 1/2"]	2 1/2
Isoflex Coupling Outside Diameter	150	5.91
Isoflex Coupling Inside Diameter	54	2.13
Isoflex Coupling Thickness	36	1.42
Heavy Duty	1180	860
Medium Duty	1770	1300
Pleasure Craft	2000	1470
Approx Weight incl. Bolt Set	1.5	3.3

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