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SigmaDrive - Constant velocity joint coupling
Regarding inquiry form and calculation: Please read the note at the end of this description! Regardless of the type of ship, we offer you the solution with the Bruntons SigmaDrive coupling. There are various products on the market, that try to solve the problem in different ways. The Bruntons SigmaDrive is the only way to eliminate disturbing noises and vibrations of the drive shaft! Special feature: Brunton's Sigma Drive is essentially different in that it is made from a special bronze alloy, no bearings or rubber parts are used and it is very low-maintenance. Instead, special constant velocity joints are used, which are able to transmit the propeller push without thrust bearings. Constant velocity joints are primarily used in mechanical engineering and as drive shafts in automotive engineering. Unlike simple cardan joints, they transmit the rotary motion uniformly. This prevents irregularities in the drive train and additional loads on the surrounding components. SigmaDrives are designed to be suitable for virtually all boats, from yachts to workboats, in fact pretty much any powered vessel with engines up to 1300 hp.Advantages: Noise and vibrations of the drive shaft can be drastically or completely reduced Compact size comparable to standard shaft couplings High performance and low maintenance Perfect alignment of the propeller shaft Simple installation, without fixing brackets or plates for thrust bearings Very cost-effective solution as little or no modifications to the vessel are requiredTo calculate, please copy and paste the following information together with your vessel and engine details into the notes section of the inquiry form: Yacht -  make and model: Shaft diameter Ø:       mm Engine - make and model: Engine power:        hp/kw Engine speed (rpm): rpm Gear ratio:                     :1

from €1,170.03*
VARIFLEX - Flexible coupling K-100 for Ø20-25mm
Areas of Application: Installation between reversing gear and propeller shaft Special features:SGF joint discs with integrated loop packs made of textile fibres Modern and proven through multiple industrial applications in the automotive industryHole patterns of the most common gearboxes combined in one flange, other hole patterns are manufactured at no extra chargeSupplied complete: with clamping flange, all screws and locking devices, installation instructions  Benefits:Reduced vibration and sound transmission within the bodyGalvanic separation of motor and shaft systemHighly elastic - torsional vibrations and shocks are dampened Deviations in the motor bearings and misalignment are compensated up to 3° Transmission through sling packs without metallic connection  Completely maintenance-free Comfortable installation by clamping flanges Extends the service life of the components in the drive trainThe following adapter flanges are also available:Flange-2  Volvo type, centring recess ø60 H8 passage, Lk-ø 80mm - 4x90° / M10 f. Stud bolt Overall diameter: 102mm x 12mm long for gearbox type: MS10A/L; MS15A/L and MS25A/L  Flange-2A  Volvo type, centring recess ø60 H8 - 4 deep Lk-ø 80mm - 4x90° / bore-ø11 Overall diameter 102mm x 48mm long for gearbox type: MS, MSB and all MS2 ATTENTION: To find the right coupling for your system, please refer to the model overview found under “Product brochure PDF”

from €387.81*
VARIFLEX - Flexible coupling K-120 for Ø25-30mm
Areas of Application: Installation between reversing gear and propeller shaft Special features: SGF joint discs with integrated loop packs made of textile fibres Modern and proven through multiple industrial applications in the automotive industry Hole patterns of the most common gearboxes combined in one flange, other hole patterns are manufactured at no extra charge Supplied complete: with clamping flange, all screws and locking devices, installation instructions   Benefits:Reduced vibration and sound transmission within the bodyGalvanic separation of motor and shaft systemHighly elastic - torsional vibrations and shocks are dampenedDeviations in the motor bearings and misalignment are compensated up to 3°Transmission through sling packs without metallic connection Completely maintenance-freeComfortable installation by clamping flangesExtends the service life of the components in the drive trainThe following adapter flanges are also available:Flange-2 Volvo type, centring recess ø60 H8 passage, Lk-ø 80mm - 4x90° / M10 f. Stud bolt Overall diameter: 102mm x 12mm long for gearbox type: MS10A/L; MS15A/L and MS25A/L Flange-2A Volvo type, centring recess ø60 H8 - 4 deep Lk-ø 80mm - 4x90° / bore-ø11 Overall diameter 102mm x 48mm long for gearbox type: MS, MSB and all MS2 ATTENTION: To find the right coupling for your system, please refer to the model overview found under “Product brochure”!

from €463.41*
VARIFLEX - Flexible coupling K-130 for Ø25-40mm
Areas of Application: Installation between reversing gear and propeller shaft Special features: SGF joint discs with integrated loop packs made of textile fibres Modern and proven through multiple industrial applications in the automotive industry Pitch circles of the most distributed gears integrated in a flange, other pitch circles are manufactured as per your instruction without surcharge. Supplied complete: with clamping flange, all screws and locking devices, installation instructions  Benefits:Reduced vibration and sound transmission within the bodyGalvanic separation of motor and shaft systemHighly elastic - torsional vibrations and shocks are dampenedDeviations in the motor bearings and misalignment are compensated up to 3°Transmission through sling packs without metallic connectionCompletely maintenance-freeComfortable installation by clamping flangesExtends the service life of the components in the drive trainThe following adapter flanges are also available: Flange-2 Volvo type, centring recess ø60 H8 passage, Lk-ø 80mm - 4x90° / M10 f. Stud bolt Overall diameter: 102mm x 12mm long for gearbox type: MS10A/L; MS15A/L and MS25A/L Flange-2A Volvo type, centring recess ø60 H8 - 4 deep Lk-ø 80mm - 4x90° / bore-ø11 Overall diameter 102mm x 48mm long for gearbox type: MS, MSB and all MS2 ATTENTION: To find the right coupling for your system, please refer to the model overview found under “Product brochure”! 

from €583.06*
VARIFLEX - Flexible coupling K-165 for Ø35-45mm
Areas of application: Installation between reversing gear and propeller shaftSpecial features:SGF joint discs with integrated loop packs made of textile fibres Modern and proven through multiple industrial applications in the automotive industry Hole patterns of the most common gearboxes combined in one flange, other hole patterns are manufactured  at no extra charge Supplied complete: with clamping flange, all screws and locking devices, installation instructions  Benefits: ·         Reduced vibration and sound transmission within the body ·         Galvanic separation of motor and shaft system ·         Highly elastic - torsional vibrations and shocks are dampened ·         Deviations in the motor bearings and misalignment are compensated up to 3° ·        Transmission through sling packs without metallic connection ·         Completely maintenance-free ·         Comfortable installation by clamping flanges ·         Extends the service life of the components in the drive train The following adapter flanges are also available:Flange-2Volvo type, centring recess ø60 H8 passage,Lk-ø 80mm - 4x90° / M10 f. Stud boltOverall diameter: 102mm x 12mm longfor gearbox type: MS10A/L; MS15A/L and MS25A/LFlange-2AVolvo type, centring recess ø60 H8 - 4 deepLk-ø 80mm - 4x90° / bore-ø11Overall diameter 102mm x 48mm longfor gearbox type: MS, MSB and all MS2 Attention: To find the right coupling for your system, please consult the model overview under "Product brochure"!  

from €838.84*