VETUS Type 6 Coupling

SVB item number: 63433 Manufacturer no.: KO54
Type 6 coupling for mounting to the propeller shaft with a special conical clamping hub. Bolt kit and rubber buffer are sold separately.
Product details
only  €379.50
Expected to be in stock within 4-6 days
pcs.
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Product data

  • SVB item number 63433
  • EAN 8717372077395
  • Manufacturer no. KO54
  • Description Coupling type 6 with pilot hole
  • For shaft 20 mm
  • Accessories for Inboard engines

Accessories

Image of Bolt set for coupling type 6
VETUS Bolt set for coupling type 6
from €15.95
Image of Rubber Buffer for Type 6 Coupling / KO51 / KO52 / KO53 / KO54
VETUS Rubber Buffer for Type 6 Coupling / KO51 / KO52 / KO53 / KO54
only €30.50

Product details

Type 6 coupling can be mounted to the propeller shaft with a special conical clamping hub. No cone needs to be screwed onto the shaft. The coupling is pre-drilled with a mounting hole for 4-inch and 5-inch connection flanges on the gearbox (suitable for Hurth, Paragon and Velvet reversing gearboxes). Matching mounting bolts are sold separately. Load capacity (max. motor power): 5.3 hp per 100 rpm at the shaft. Outer Ø: 138 mm, total length: 86 mm.

Find the right coupling in three steps.
1st step: First check the engine horsepower.
2nd step: What is the reduction ratio?
Here is an example using a 55 hp engine with 3600 rpm and a reduction ratio of 2:1.
Step 3: Calculate as follows: 3600 rpm / 2 (reduction ratio 2:1) = 1800 rpm / 100 rpm * 5.3 (load capacity of the coupling) = 95.4 hp max. power. Type 6 coupling is therefore suitable.

Overview table
Coupling type RPM recommended Gear reduction Maximum power
TYPE 6 3600 RPM 2:1 91 HP
TYPE 6 3600 RPM 2.5:1 88 HP

Available in different versions. A mounting bolt set for 4 inch or 5 inch flanges and rubber buffers available separately.

Documents

de-flag Datasheet
PDF (145,06 KB)

Systems

Product safety

What other SVB customers have to say

100% real reviews

11 customer reviews

Francois G.
by Francois G. Flag of Réunion 8/21/2025 Verified purchase Variant: 63432
Rotten SVB service, monstrous delays towards the meeting
No delays to Reunion and Dom you must change carrier

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Customers ask customers

General question
Eduard S. | Feb 18, 2018 Flag of English
User image of Eduard S.

Are there rubber buffers inside already or I have to buy those separately? It is not clear from the description. Thanks

Answer from SVB customer service
Christoph L. | Aug 21, 2018
User image of Christoph L.

The rubber buffers are already inside. You can also purchase these parts separately as a spare part from us.

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VETUS Type 6 Coupling
For shaft 20 mm