Integrated Becket for Purchase Systems. T316 Stainless Steel Hardware. Available in 35mm & 50mm Sizes.

Overview

Build powerful rigging systems with the RiaYer Single Swivel Becket Block. This essential marine pulley features an integrated Becket (anchor point) at the bottom, allowing you to start a line directly from the block to create 3:1 or 4:1 mechanical advantage block-and-tackle systems. Constructed with a hybrid blend of T316 Marine-Grade Stainless Steel load straps and a lightweight, impact-resistant body, it is engineered to withstand high working loads while maintaining a compact profile. Whether for mainsheets or vangs, the 360° swivel head ensures your lines run smooth and twist-free.

Key Features

  • ⚓ Integrated Becket Anchor: The reinforced stainless steel becket allows you to tie off the line directly to the pulley block, essential for creating purchase systems.
  • 🔄 360° Swivel Head: Designed with a free-rotating head that aligns automatically with the load, effectively eliminating line twists and jamming.
  • 🛡️ Hybrid T316 Construction: Combines T316 Stainless Steel hardware for maximum corrosion resistance and strength, with a reinforced Nylon body to keep the block lightweight.
  • 💪 Impressive Load Capacity: Built tough—the 35mm model supports a working load of 1,760 lbs, while the 50mm marine block handles up to 3,100 lbs (1406 kg).
  • ⚙️ Smooth Delrin® Bearings: Low-friction ball bearings ensure the sheave spins freely, providing precise rope control even under heavy dynamic loads.

Specifications

Frame Material T316 Stainless Steel & Nylon
Sheave Diameter 35mm (1-3/8") / 50mm (1-15/16")
Total Length 2-13/16" (35mm) / 3-15/16" (50mm)
Working Load Limit 1,760 lbs (35mm) / 3,100 lbs (50mm)
Max Line Size 3/8" (10mm) / 1/2" (12mm)
Configuration Single Sheave + Becket

Versatile Applications

Ideal for creating mechanical advantage systems:

  • ✔ Mainsheet Systems (3:1 / 4:1)
  • ✔ Boom Vangs & Cunninghams
  • ✔ Davit Lifting & Cargo Hoisting

Why Choose RiaYer?

We engineer hardware for reliability. RiaYer blocks utilize T316 Stainless Steel for all load-bearing components, ensuring they won't corrode or fail under pressure. With data-backed working loads of up to 3,100 lbs, our blocks provide the safety margin you need for offshore sailing or heavy lifting.

Frequently Bought Together

Total price$134.95

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