The PolarWave DELTA 60 mm is the result of more than 18 months of intensive development with one uncompromising objective:
To build the strongest and highest-performing 60 mm racing block ever created.
Every component of the DELTA 60 has been engineered from the ground up to maximize strength, minimize friction, and deliver absolute reliability in the harshest racing environments.
Machined Performance Construction
The DELTA 60 combines a fully CNC machined aluminium housing with a precision-machined titanium sheave to achieve the ideal balance between weight, stiffness, durability, and extreme load capacity.
The aluminium body provides:
- Exceptional stiffness-to-weight ratio
- Reduced overall system weight
- Outstanding structural efficiency
- Precision manufacturing tolerances
At the core of the system is the titanium sheave — engineered to withstand enormous compressive and dynamic loads while maintaining perfect dimensional stability under extreme conditions.
Titanium was selected for its:
- Extremely high strength
- Superior fatigue resistance
- Outstanding corrosion resistance
- Exceptional wear properties
- Long-term structural integrity under cyclic loading
The result is a block engineered for uncompromising Grand Prix performance.
Silicon Nitride Ceramic Bearings
At the heart of the DELTA 60 are ultra-premium Silicon Nitride ceramic bearings — among the hardest and most advanced engineering materials in the world.
Silicon Nitride offers:
- Ultra-low rolling resistance
- Exceptional load capacity
- Outstanding wear resistance
- Near-zero corrosion
- Minimal deformation under extreme compression
The material is so hard that it cannot be conventionally CNC machined. Instead, every bearing undergoes a precision grinding and polishing process lasting up to six days to achieve the tolerances required for elite-level racing performance.
This results in incredibly smooth operation and maximum efficiency even under the immense sheet and control line loads found on modern Grand Prix yachts.
TiN-Coated Titanium Sheave
The titanium sheave is finished with a Titanium Nitride (TiN) coating — the same advanced surface treatment used on premium industrial cutting tools and the world’s highest-performance drill bits.
The TiN coating dramatically improves:
- Surface hardness
- Wear resistance
- Corrosion protection
- Rope longevity
- Long-term efficiency
The coating also reduces friction and protects the sheave surface from degradation under repeated high-load cycles.
Developed for Extreme Racing Loads
The DELTA 60 mm was engineered specifically for:
- Foiling race boats
- Canting keel racers
- Offshore race programs
- Maxi yachts
- High-load running rigging systems
- Hydraulic-assisted control systems
- Professional Grand Prix campaigns
Every gram, every radius, and every surface has been optimized for maximum performance and reliability.
Built Without Compromise
The DELTA 60 mm is not an evolution of an existing block design — it is a complete rethinking of what high-performance sailing hardware can be.
Stronger.
Lighter.
More efficient.
Built for the highest level of the sport.
The DELTA 60 mm stands as one of the most advanced and highest load-rated performance blocks ever manufactured in its class.
