Harken
Harken 348 29mm Carbo Fixed Block Sailing Pulley
The Harken 29mm Carbo Fixed Block 348 is a lightweight, compact, and exceptionally strong sailing pulley designed for high-performance control line systems on dinghies, trailer yachts, keelboats, and performance cruising yachts. Featuring Harken's renowned Carbo Air® technology, this fixed block delivers extremely low friction, high working loads, and outstanding durability while maintaining an incredibly lightweight design.
Manufactured with UV-stabilised glass-filled nylon side plates, a precision-moulded sheave, and stainless steel ball bearings, the Harken 348 provides smooth, efficient line handling under load. Its compact fixed-head design offers excellent alignment where a swivel is not required, making it ideal for permanent control line installations.
The 29mm Carbo range is trusted by sailors around the world for its excellent strength-to-weight ratio and dependable performance. The Harken 348 is commonly used for outhauls, cunninghams, vang systems, traveller controls, barber haulers, flag halyards, and other low-load control systems, delivering reliable operation in demanding racing and cruising environments.
Designed for boats where weight, reliability, and efficiency matter, the Harken 29mm Carbo Fixed Block is a proven solution for improving sail handling and reducing friction throughout your running rigging.
Key Features
- Genuine Harken 348 Carbo Air® Block
- 29mm low-friction sheave
- Fixed head design
- Lightweight glass-filled nylon side plates
- Stainless steel ball bearing system
- UV-resistant construction
- Extremely low rolling friction
- High strength-to-weight ratio
- Compact installation footprint
- Suitable for rope up to 8mm
- Maintenance-free design
- Trusted Harken quality
The Harken 348 has a 29mm sheave, accepts line up to 8mm, offers a 150kg maximum working load, and a 454kg breaking load.
Why Buy the Harken 348 from Barton Marine NZ?
At Barton Marine NZ, we stock genuine Harken sailing hardware trusted by New Zealand sailors for reliability, strength, and performance. Whether you're upgrading a racing dinghy, trailer yacht, sports boat, or cruising yacht, the Harken 348 delivers smooth, efficient sail control backed by one of the world's leading sailing hardware manufacturers.
Ideal for:
- Outhaul systems
- Cunningham controls
- Boom vangs
- Traveller controls
- Barber haulers
- Flag halyards
- Control line redirects
- Dinghies
- Trailer yachts
- Keelboats
Technical Specifications
| Feature | Specification |
|---|---|
| Brand | Harken |
| Model | 348 |
| Product Type | Fixed Sailing Block |
| Sheave Diameter | 29mm |
| Maximum Rope Diameter | 8mm |
| Length | 49mm |
| Weight | 23g |
| Maximum Working Load | 150kg |
| Breaking Load | 454kg |
| Bearing Type | Ball Bearing |
| Side Plates | Glass-Filled Nylon |
| Marine Suitable | Yes |
Published Harken specifications list a 29mm sheave, 49mm overall length, 23g weight, 8mm maximum rope diameter, 150kg working load, and 454kg breaking load.
Common Applications
The Harken 348 is ideal for:
- Outhaul systems
- Cunningham controls
- Traveller controls
- Boom vangs
- Barber haulers
- Flag halyards
- Control line redirects
- Dinghy rigging
- Trailer yacht rigging
- Performance sailing systems
Performance Benefits
The Harken 29mm Carbo Fixed Block provides:
- Extremely low friction operation
- Smooth trimming under load
- Lightweight rigging
- High load capacity
- Excellent UV resistance
- Outstanding corrosion resistance
- Long service life
- Proven racing performance
Harken's Carbo Air® range combines lightweight composite construction with precision bearings to deliver exceptionally efficient line handling and long-term durability in demanding marine environments.
