ID
975917
$ 1,235.20
1-2 weeks delivery time
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The Vetus BULFL0835 Bullflex 8 Flexible Coupling (shaft Ø 35 mm, type 8) delivers superior vibration damping and precise propeller shaft alignment for marine propulsion systems. With a 170 mm diameter and 166 mm height, it supports up to 127 HP at 3600 RPM (2:1 reduction). Its highly flexible pre-tensioned rubber element absorbs torsional vibrations and allows up to 2° misalignment while maintaining smooth, quiet, backlash-free transmission. Built-in thrust damping, galvanic isolation, and a non-tapered hub ensure reliable, long-term performance and easy installation for marine engines.
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Vetus BULFL0835 Bullflex 8 Flexible Coupling for 35 mm Shaft
The Vetus BULFL0835 Bullflex 8 Flexible Coupling is designed for marine propulsion systems to ensure superior vibration damping and precise alignment between the engine and the propeller shaft. Its flexible pre-tensioned rubber element effectively absorbs torsional and axial vibrations, guaranteeing smooth and quiet transmission without backlash. The coupling tolerates up to 2° shaft misalignment and provides galvanic isolation between the engine and shaft, preventing corrosion and mechanical stress. With easy installation and robust construction, it offers long-lasting, maintenance-free performance for marine applications.
Key Features
- Extremely high flexibility for superior vibration and noise absorption
- Axially and radially secured against shearing for maximum operational safety
- Permissible misalignment up to 2°
- Excellent shaft centering, allowing smooth high-RPM operation
- Removable centering ring for multi-bearing installations
- Built-in thrust damper minimizes axial vibration
- Non-tapered clamping hub for perfect centering and easy disassembly
- Provides galvanic isolation between engine and propeller shaft
- Quiet, backlash-free power transmission under load
Performance Ratings (at 3600 RPM)
- Gear 2:1 reduction – Maximum 127 HP
- Gear 2.5:1 reduction – Maximum 102 HP
Technical Specifications
Parameter Specification Model BULFL0835 (Bullflex Type 8) Shaft Diameter Ø 35 mm Overall Diameter (D) 170 mm Height (L) 166 mm Pleasure Craft Power Ratio (DIN 6270B) 8.5 HP / 100 RPM (6.3 kW) Commercial Craft Power Ratio (DIN 6270A) 5.8 HP / 100 RPM (4.3 kW) Max Torque (Pleasure Craft) 600 Nm Max Torque (Commercial Craft) 410 Nm Max RPM (Zero Misalignment) 5000 RPM Max RPM (at 2° Misalignment) 2500 RPM Flange Options Combined 4″ and 5″ flanges Material Marine-grade rubber and precision-machined steel hub Galvanic Isolation Yes
Dimensional Overview
- Type: Bullflex 8
- Flange size: 4″ & 5″ combined
- Shaft diameter: 35 mm
- Length L: 166 mm
- Diameter D: 170 mm
Advantages of the Bullflex Coupling
- Exceptional damping of torsional and axial vibrations
- Reliable and silent performance under all conditions
- Excellent alignment even with minor shaft deviations
- Corrosion-resistant and durable marine construction
- Quick installation and maintenance-free operation
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