Lewmar 29197201 72mm HTX Single Block with Locking Swivel Head

The Lewmar 29197201 is a 72mm HTX Single Block featuring a locking swivel head, purpose-built for high-load sailing applications. Combining years of Lewmar design and manufacturing expertise with direct input from boat builders, designers, and sailors, the HTX range delivers racing-inspired performance at a practical price point.

This block is ideally suited as a workhorse turning block, for spinnaker sheets, running backstays, and other frequently adjusted, heavily loaded systems that rely on modern, reduced-diameter line technology. The 72mm sheave handles up to 9/16" (14mm) line and is clearly marked with the safe working load and maximum line diameter for quick reference on deck.

Key Features:

• Safe Working Load: 2,000 kg (4,400 lbs)
• Maximum Line Size: 14mm (9/16")
• Sheave Diameter: 72mm (2-7/8")
• Post Diameter: 16.5mm (21/32")
• Shackle Pin Diameter: 9.8mm (3/8")
• Strong aluminum side cheeks for rigidity and durability
• Central plain bearing optimized for efficiency under high loads
• Side thrust Delrin ball bearings for smooth lateral load handling
• Locking swivel head with grub screw mechanism — Racing Range inspired design
• Machined bearing pin surface for superior efficiency over comparable blocks
• UV-resistant acetal sheave that becomes self-lubricating above 450 kg load
• Durable black finish

The Lewmar HTX series bridges the gap between everyday cruising hardware and grand-prix racing blocks, offering exceptional load capacity and line efficiency without the premium price tag. Designed for recreational marine use.