Page 66 - Vetus

FLEXIBLE COUPLINGS

VETUS offers a variety of solutions to connect the propeller shaft to the engine. The flexible rubber element of the flexible coupling
ensures low-noise vibration-free transmission, without backlash between the engine and the propeller shaft.
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For smaller stern gear installations up to 1 / 16” (30 mm), depending on the space available in the engine room, you can either
choose the Bullflex, Combiflex, Uniflex type 13 or the KO5. These couplings all permit a misalignment of 2º. Only the KO5 is
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suitable for V-drives. For stern gear installations up to 2 / 4” (70 mm), you can choose between Bullflex and Uniflex type 16.
Last but not least, VETUS offers the VDR. This double acting constant velocity joint comes with a thrust bearing. The VDR is used
when considerable misalignment angles need to be overcome.

Type COMBIFLEX

Optimum damping of torsional vibrations
The Combiflex coupling has been designed to ensure optimum damping of torsional vibrations, created by cycle irregularities
especially at low engine revolutions. The Combiflex coupling is secured against shearing off, both axially and radially, thus ensuring
safe transmission under all circumstances. The Combiflex coupling also provides excellent alignment of the propeller shaft. Aligning
the engine and propeller shaft can be a rather time consuming affair, however the Combiflex will remain perfectly centred onto the
gearbox flange, even if the shaft has a misalignment of 2º. The parallel clamping hub ensures easy installation and probably even
more importantly, easy dismantling of the shaft assembly.
Available for shafts of Ø 1” (25 mm) or 1 / 16” (30 mm). Comes with a 4” flange to fit most common gearbox models.
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For specifications, please see table on the next page.

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Type Uniflex
Exact alignment and concentric installation of propeller shaft
Couplings of type Uniflex permit a misalignment of 2º. Uniflex couplings will centre the shaft on the gearbox by means of a conical
clamping hub and are an ideal flexible coupling between a propeller shaft with a self-aligning bearing and an engine on flexible
supports. These couplings are axially and radially secured against shearing off. When the propeller shaft is connected to the engine
at an angle of 2º, the maximum admissible number of revolutions is 1.500 r.p.m. on the shaft.
Specifications Uniflex type 13 and 16
• With cylindrical bore
• Clamping hub for shafts with a diameter of / 32”, 1” and 1 / 16” (20, 25 and 30 mm) (type 13), and 1 / 16 , 1 / 8” or 1 / 16”
25
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(30, 35 or 40 mm) for type 16
• 4” Connection (type 13) and/or 5” (type 16) for Hurth, Velvet, TD, ZF, PRM and other makes
• Not suitable for V-Drives

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