• RiaYer single swivel marine pulley block with 360 degree rotation head.
  • RiaYer swivel sailing block used for sailboat rigging, halyards, and control lines.
  • Detailed dimension drawing and size chart for RiaYer 35mm and 50mm marine pulleys.
  • Advanced materials: T316 stainless steel fittings and PA66 nylon body on RiaYer block.
  • Max line size compatibility for RiaYer high-capacity marine pulley blocks.
  • 1800 lbs safe working load limit for the 35mm RiaYer marine pulley.
  • 360 degree all-angle rotation feature of the RiaYer swivel marine pulley.
RiaYer single swivel marine pulley block with 360 degree rotation head.
RiaYer swivel sailing block used for sailboat rigging, halyards, and control lines.
Detailed dimension drawing and size chart for RiaYer 35mm and 50mm marine pulleys.
Advanced materials: T316 stainless steel fittings and PA66 nylon body on RiaYer block.
Max line size compatibility for RiaYer high-capacity marine pulley blocks.
1800 lbs safe working load limit for the 35mm RiaYer marine pulley.
360 degree all-angle rotation feature of the RiaYer swivel marine pulley.

360° Free Rotation Head. Hybrid T316 SS & PA66 Construction. Available in 35mm & 50mm.

Overview

Eliminate line twists and ensure smooth operation with the RiaYer Single Swivel Sailing Block. Featuring a precision-engineered 360° Swivel Head, this block automatically rotates to align with the load, drastically reducing friction on your lines. The construction utilizes a professional hybrid blend: T316 Marine-Grade Stainless Steel for the load-bearing straps and shackle, combined with a lightweight, wear-resistant PA66 Nylon body. Available in 35mm and 50mm sizes, it is the reliable choice for control lines, halyards, and mainsheets.

Key Features

  • 🔄 360° Free Swivel: The headpost rotates freely around its axis, allowing the block to turn and follow the direction of the rope. This prevents the line from jamming or twisting during operation.
  • ⚓ Hybrid Composite Build: Engineered for the marine environment—T316 Stainless Steel provides rust-proof strength for the shackle and straps, while the reinforced Nylon body reduces weight without sacrificing durability.
  • 💪 High Working Load: Compact yet powerful. The 35mm version supports a Working Load Limit (WLL) of 1,800 lbs, and the 50mm version handles up to 3,100 lbs (1406 kg).
  • ⚙️ Low-Friction Bearings: Equipped with smooth-running bearings that reduce resistance, making it easier to trim sails and adjust lines under heavy tension.
  • 📏 Two Professional Sizes: Precision-machined in 35mm (for up to 7/16" lines) and 50mm (for up to 1/2" lines) to perfectly match your specific rigging needs.

Specifications

Sheave Diameter 35mm (1-3/8") / 50mm (1-15/16")
Head Motion 360° Free Rotation
Max Line Size 7/16" (11mm) / 1/2" (12.7mm)
Working Load (WLL) 1,800 lbs (816 kg) / 3,100 lbs (1406 kg)
Body Length 2" (35mm) / 2-13/16" (50mm)
Body Width 1-3/8" (35mm) / 2" (50mm)
Total Thickness 7/8" (35mm) / 1-1/8" (50mm)
Pin Diameter 3/16" (Standard for both)

  • Free Shipping

  • Secure Checkout

  • Fast Delivery

  • PayPal

RiaYer

RiaYer Single Swivel Sailing Block | Compact Marine Pulley (35mm/50mm)

SKU B0DFZ3LS6M
$15.99

360° Free Rotation Head. Hybrid T316 SS & PA66 Construction. Available in 35mm & 50mm.

Overview

Eliminate line twists and ensure smooth operation with the RiaYer Single Swivel Sailing Block. Featuring a precision-engineered 360° Swivel Head, this block automatically rotates to align with the load, drastically reducing friction on your lines. The construction utilizes a professional hybrid blend: T316 Marine-Grade Stainless Steel for the load-bearing straps and shackle, combined with a lightweight, wear-resistant PA66 Nylon body. Available in 35mm and 50mm sizes, it is the reliable choice for control lines, halyards, and mainsheets.

Key Features

  • 🔄 360° Free Swivel: The headpost rotates freely around its axis, allowing the block to turn and follow the direction of the rope. This prevents the line from jamming or twisting during operation.
  • ⚓ Hybrid Composite Build: Engineered for the marine environment—T316 Stainless Steel provides rust-proof strength for the shackle and straps, while the reinforced Nylon body reduces weight without sacrificing durability.
  • 💪 High Working Load: Compact yet powerful. The 35mm version supports a Working Load Limit (WLL) of 1,800 lbs, and the 50mm version handles up to 3,100 lbs (1406 kg).
  • ⚙️ Low-Friction Bearings: Equipped with smooth-running bearings that reduce resistance, making it easier to trim sails and adjust lines under heavy tension.
  • 📏 Two Professional Sizes: Precision-machined in 35mm (for up to 7/16" lines) and 50mm (for up to 1/2" lines) to perfectly match your specific rigging needs.

Specifications

Sheave Diameter 35mm (1-3/8") / 50mm (1-15/16")
Head Motion 360° Free Rotation
Max Line Size 7/16" (11mm) / 1/2" (12.7mm)
Working Load (WLL) 1,800 lbs (816 kg) / 3,100 lbs (1406 kg)
Body Length 2" (35mm) / 2-13/16" (50mm)
Body Width 1-3/8" (35mm) / 2" (50mm)
Total Thickness 7/8" (35mm) / 1-1/8" (50mm)
Pin Diameter 3/16" (Standard for both)
$15.99
Sheave Diameter:
Set Quantity:
BUY ON AMAZON
RiaYer single swivel marine pulley block with 360 degree rotation head. RiaYer swivel sailing block used for sailboat rigging, halyards, and control lines. Detailed dimension drawing and size chart for RiaYer 35mm and 50mm marine pulleys. Advanced materials: T316 stainless steel fittings and PA66 nylon body on RiaYer block. Max line size compatibility for RiaYer high-capacity marine pulley blocks. 1800 lbs safe working load limit for the 35mm RiaYer marine pulley. 360 degree all-angle rotation feature of the RiaYer swivel marine pulley.
RiaYer single swivel marine pulley block with 360 degree rotation head. RiaYer swivel sailing block used for sailboat rigging, halyards, and control lines. Detailed dimension drawing and size chart for RiaYer 35mm and 50mm marine pulleys. Advanced materials: T316 stainless steel fittings and PA66 nylon body on RiaYer block. Max line size compatibility for RiaYer high-capacity marine pulley blocks. 1800 lbs safe working load limit for the 35mm RiaYer marine pulley. 360 degree all-angle rotation feature of the RiaYer swivel marine pulley.

RiaYer

RiaYer Single Swivel Sailing Block | Compact Marine Pulley (35mm/50mm)

SKU B0DFZ3LS6M
$15.99
RiaYer single swivel marine pulley block with 360 degree rotation head.

360° Free Rotation Head. Hybrid T316 SS & PA66 Construction. Available in 35mm & 50mm.

Overview

Eliminate line twists and ensure smooth operation with the RiaYer Single Swivel Sailing Block. Featuring a precision-engineered 360° Swivel Head, this block automatically rotates to align with the load, drastically reducing friction on your lines. The construction utilizes a professional hybrid blend: T316 Marine-Grade Stainless Steel for the load-bearing straps and shackle, combined with a lightweight, wear-resistant PA66 Nylon body. Available in 35mm and 50mm sizes, it is the reliable choice for control lines, halyards, and mainsheets.

Key Features

  • 🔄 360° Free Swivel: The headpost rotates freely around its axis, allowing the block to turn and follow the direction of the rope. This prevents the line from jamming or twisting during operation.
  • ⚓ Hybrid Composite Build: Engineered for the marine environment—T316 Stainless Steel provides rust-proof strength for the shackle and straps, while the reinforced Nylon body reduces weight without sacrificing durability.
  • 💪 High Working Load: Compact yet powerful. The 35mm version supports a Working Load Limit (WLL) of 1,800 lbs, and the 50mm version handles up to 3,100 lbs (1406 kg).
  • ⚙️ Low-Friction Bearings: Equipped with smooth-running bearings that reduce resistance, making it easier to trim sails and adjust lines under heavy tension.
  • 📏 Two Professional Sizes: Precision-machined in 35mm (for up to 7/16" lines) and 50mm (for up to 1/2" lines) to perfectly match your specific rigging needs.

Specifications

Sheave Diameter 35mm (1-3/8") / 50mm (1-15/16")
Head Motion 360° Free Rotation
Max Line Size 7/16" (11mm) / 1/2" (12.7mm)
Working Load (WLL) 1,800 lbs (816 kg) / 3,100 lbs (1406 kg)
Body Length 2" (35mm) / 2-13/16" (50mm)
Body Width 1-3/8" (35mm) / 2" (50mm)
Total Thickness 7/8" (35mm) / 1-1/8" (50mm)
Pin Diameter 3/16" (Standard for both)

Frequently Bought Together

Total price$134.95

Customers also bought

    • ITEM BAR TITLE

      Share shipping, delivery, policy information.

    • ITEM BAR TITLE

      Share shipping, delivery, policy information.

    • ITEM BAR TITLE

      Share shipping, delivery, policy information.

    • ITEM BAR TITLE

      Share shipping, delivery, policy information.