Ronstan Series 20 ball Bearing Block - Triple - 2-Axis Shackle head

The Series 20 Ball Bearing Block - Triple - 2-Axis Shackle Head is engineered for superior performance in marine applications. Whether you're managing dinghy control lines, vangs, or traveller controls, this high-quality block ensures smooth operation and durability under demanding conditions.

Features

• Low friction for effortless line management
• High static and dynamic load capacity for reliable performance
• Lightweight design reduces overall vessel weight
• Precision molded Acetal sheaves paired with stainless steel or Torlon® ball bearings offer exceptional performance and minimal friction
• Two-way head can be securely fixed at 0° or 90° for versatile installation options

Applications

Ideal for various marine and boating setups, the Series 20 Ball Bearing Block - Triple - 2-Axis Shackle Head excels in:

• Dinghy control lines
• Dinghy vangs
• Cunninghams
• Traveller controls

Materials

Constructed with premium materials to withstand the harsh marine environment:

• Stainless steel ball bearings for corrosion resistance and longevity
• UV stabilized Acetal sheave to prevent degradation from sun exposure
• Grade 316 stainless steel load strap and head fitting ensure robust strength and durability
• Impact and UV resistant, fiber-reinforced Nylon cheeks provide added protection and stability

Specifications

Specification	Details
Sheave Ø	20mm (3/4")
Max. Rope Ø	6mm (1/4")
Pin Ø	4mm (5/32")
M.W.L.	400kg (880lbs)
B. L.	850kg (1,870lbs)
Weight	62g (2.2oz)

Enhance your marine setup with the Series 20 Ball Bearing Block - Triple - 2-Axis Shackle Head, combining reliability, strength, and precision for all your boating needs.

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.