ID
975927
$ 3,172.86
1-2 weeks delivery time
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The Vetus BULFL3260 Bullflex 32 Flexible Coupling (shaft Ø 60 mm, type 32) provides superior vibration damping and precise shaft alignment for high-power marine propulsion systems. With a 260 mm diameter and 263 mm height, it supports up to 439 HP at 3000 RPM (2:1 gear reduction) and compensates for shaft misalignment up to 2°. Its pre-tensioned flexible rubber element minimizes torsional and axial vibrations, ensuring quiet, backlash-free torque transmission. Designed for reliability and ease of installation, it features galvanic isolation between engine and propeller shaft, a built-in thrust damper, a non-tapered clamping hub, and a removable centering ring for versatile marine applications.
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Vetus BULFL3260 Bullflex 32 Flexible Coupling for 60 mm Shaft
The Vetus BULFL3260 Bullflex 32 Flexible Coupling is designed for powerful marine propulsion systems utilizing a 60 mm propeller shaft. It provides efficient vibration isolation, ensuring smooth, quiet, and backlash-free transmission between the engine and the shaft. The pre-tensioned flexible rubber element effectively absorbs torsional and axial vibrations, while the precision-engineered design allows for shaft misalignment up to 2° without compromising alignment or performance. The coupling also includes galvanic separation between the engine and propeller shaft to prevent corrosion and mechanical wear.
Key Features
- Exceptional torsional flexibility for advanced vibration and noise damping
- Axially and radially secured against shearing for safe, durable operation
- Allows shaft misalignment up to 2°
- Excellent centering and balance of the shaft at all rotational speeds
- Remains centered and stable even in reverse operation
- Removable centering ring for installations with multiple bearings
- Integrated thrust damper minimizes axial vibration and noise
- Non-tapered clamping hub for perfect centering and easy disassembly
- Galvanic isolation between engine and propeller shaft
- Maintenance-free design with long service life
Performance Ratings (at 3000 RPM)
- Gear 2:1 reduction – Maximum 439 HP
- Gear 2.5:1 reduction – Maximum 370 HP
Installation Compatibility
Without adapter: Fits directly on Hurth, Velvet, Technodrive, ZF, and P.R.M. gearboxes using the UNISET4/5 stud and bolt set.
With adapter: For other gearbox types, adapter flanges are available (nuts and bolts included):
Adapter Flange Compatible Gearboxes FLANGE1 Yanmar KM2C, KMP2P, KM3P, Kanzaki KC30, KC45, KC100 FLANGE2 Volvo MS10A/L, MS15A/L, MS25A/L FLANGE2A Volvo MS, MSB, and all MS2 series FLANGE3 Yanmar KM4A, KM4A1, KMH4A, KBW20-1, KBW21, Kanzaki KC180
Technical Specifications
Parameter Specification Model BULFL3260 (Bullflex Type 32) Shaft Diameter Ø 60 mm Overall Diameter (D) 260 mm Height (L) 263 mm Pleasure Craft Power Ratio (DIN 6270B) 31.3 HP / 100 RPM (23.0 kW) Commercial Craft Power Ratio (DIN 6270A) 25.3 HP / 100 RPM (18.6 kW) Max Torque (Pleasure Craft) 2200 Nm Max Torque (Commercial Craft) 1780 Nm Max RPM (Zero Misalignment) 3600 RPM Max RPM (at 2° Misalignment) 1800 RPM Flange Options Combined 4″ and 5″ flanges Material High-quality marine rubber with precision-machined steel hub Galvanic Isolation Yes
Dimensional Overview
- Type: Bullflex 32
- Flange size: 4″ & 5″ combined
- Shaft diameter: 60 mm
- Length L: 263 mm
- Diameter D: 260 mm
Advantages of the Bullflex Coupling
- Outstanding torsional and axial vibration damping
- Quiet, backlash-free power transmission
- Reliable shaft alignment and extended drivetrain lifespan
- Corrosion-resistant, galvanically isolated construction
- Simple installation, minimal maintenance, and long-term durability
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