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This jammer block is designed for controlled spinnaker handling in situations where a fixed foot block cannot assist, such as peeling spinnakers or changing a sheet winch. It attaches via a webbing strop to a toe rail or padeye, eliminating the need for drilling and preventing deck clutter. The CAM profile is engineered to hold loads up to 20% of the block's Safe Working Load (SWL). A plain bearing sheave ensures smooth running at low loads while maintaining excellent durability at high loads. The strop design allows for full rotation, making it ideal for spinnaker sheet applications.
Design Features
• Attachment: Attached with webbing strop, positioned on a toe rail or padeye.
• Installation: No drilling and no clutter on deck.
• CAM Capacity: CAM profiled to hold loads up to 20% of the block SWL.
• Sheave Performance: Plain bearing sheave provides smooth running at low loads.
• Durability: Excellent durability at high loads.
• Rotation: Strop allows fullest rotation for spinnaker sheet use.
• Operating Modes: CAM has three distinct operating modes.
Weights & Fasteners
• BRS/50 Weight: 250g (8.8oz).
• BRS/63 Weight: 365g (12.8oz).
• Fasteners: Soft fastening (attached).
Specifications
• BRS/50 Sheave: 50mm (2") composite.
• BRS/63 Sheave: 63mm (2 1/2") alloy.
• BRS/50 SWL Sheave: 800kg (1760lbs).
• BRS/63 SWL Sheave: 1200kg (2640lbs).
• BRS/50 Safe Cam Load: 160kg (352lbs).
• BRS/63 Safe Cam Load: 240kg (528lbs).
• BRS/50 Line Diameter: 6-10mm (1/4-3/8").
• BRS/63 Line Diameter: 8-12mm (5/16-1/2).
Specifications
• Brand: Spinlock
• References: BRS/50, BRS/63
