ID
975923
$ 1,753.80
1-2 weeks delivery time
-
+
The Vetus BULFL1645 Bullflex 16 Flexible Coupling (shaft Ø 45 mm, type 16) delivers exceptional vibration damping and precise shaft alignment for professional marine propulsion systems. Featuring a 205 mm diameter and 197 mm height, it supports up to 256 HP at 3000 RPM (2:1 reduction) and handles shaft misalignment of up to 2°. Its pre-tensioned flexible rubber element effectively absorbs torsional and axial vibrations, ensuring smooth, silent, and backlash-free power transmission. The coupling provides galvanic isolation between the engine and propeller shaft and includes a non-tapered clamping hub, integrated thrust damper, and removable centering ring, guaranteeing safe operation and long-lasting performance.
- Description
- Ask a Question
-
Vetus BULFL1645 Bullflex 16 Flexible Coupling for 45 mm Shaft
The Vetus BULFL1645 Bullflex 16 Flexible Coupling is specifically engineered for marine propulsion systems using a 45 mm propeller shaft. It offers optimal damping of torsional and axial vibrations while maintaining precise shaft alignment. The pre-tensioned flexible rubber element ensures low-noise, vibration-free, and backlash-free torque transmission. Designed to handle up to 2° of misalignment, it also provides galvanic isolation between the engine and propeller shaft, protecting against corrosion and electrolysis. Built to meet demanding marine standards, this coupling ensures durability, smooth performance, and effortless installation.
Key Features
- High torsional flexibility for excellent vibration and noise reduction
- Axially and radially secured to prevent shearing under all conditions
- Allows shaft misalignment up to 2°
- Exceptional shaft centering even at high revolutions
- Maintains shaft alignment in both forward and reverse gear
- Removable centering ring for use with multiple bearing systems
- Built-in thrust damper minimizes axial vibration and engine load
- Non-tapered clamping hub for perfect centering and easy disassembly
- Provides galvanic isolation between engine and propeller shaft
- Maintenance-free design with long service life
Performance Ratings (at 3000 RPM)
- Gear 2:1 reduction – Maximum 256 HP
- Gear 2.5:1 reduction – Maximum 205 HP
Installation Compatibility
Without adapter: Fits directly on Hurth, Velvet, Technodrive, ZF, and P.R.M. gearboxes using 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 BULFL1645 (Bullflex Type 16) Shaft Diameter Ø 45 mm Overall Diameter (D) 205 mm Height (L) 197 mm Pleasure Craft Power Ratio (DIN 6270B) 17.1 HP / 100 RPM (12.6 kW) Commercial Craft Power Ratio (DIN 6270A) 13.3 HP / 100 RPM (9.8 kW) Max Torque (Pleasure Craft) 1200 Nm Max Torque (Commercial Craft) 935 Nm Max RPM (Zero Misalignment) 4000 RPM Max RPM (at 2° Misalignment) 2000 RPM Flange Options Combined 4″ and 5″ flanges Material Marine-grade rubber with precision-machined steel hub Galvanic Isolation Yes
Dimensional Overview
- Type: Bullflex 16
- Flange size: 4″ & 5″ combined
- Shaft diameter: 45 mm
- Length L: 197 mm
- Diameter D: 205 mm
Advantages of the Bullflex Coupling
- Superior damping of torsional and axial vibrations
- Silent and backlash-free torque transmission
- Accurate shaft centering and long-term drivetrain stability
- Corrosion-resistant and galvanically isolated construction
- Easy installation, low maintenance, and high operational safety
-
Popular products
-
-
-
-
-
-
-
-
-
1-2 weeks delivery time$ 108.44 -
