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70mm Seldén Plain Bearing

70 mm Seldén plain-bearing blocks for larger control-line and tackle systems

Seldén 70 mm plain-bearing blocks provide a larger sheave option for yacht line-handling systems requiring greater capacity while retaining a simple, dependable design.

Selden’s 70mm Plain Bearing Blocks are versatile, durable, and perfect for mid-sized yachts (30ft to 40ft). Ideal for ropes 10mm to 12mm, they handle everything from halyards to mainsheet systems with smooth, low-friction performance and minimal maintenance.

These blocks feature a plain bearing system for handling static loads, making them ideal for everyday tasks. While not suited for high-performance trimming (check out Selden’s Ball Bearing Blocks for that), they’re perfect for reliable, no-nonsense rigging.

Each block has a 6mm shackle and can be fixed or allowed to rotate freely, offering flexibility for various setups.

Common Uses:

  • Halyards, Mast Foot Blocks
  • Vangs, Mainsheets
  • Spinnaker Sheets, Reefing

Key Features:

  • Stainless steel strap for strength
  • 70mm acetal sheave for smooth operation
  • Reinforced composite body for durability

Selden’s 70mm Plain Bearing Blocks offer a great balance of strength, reliability, and value for cruisers who need solid performance at a great price.

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Seldén 70mm Double Block Plain Bearing 407-001-05R

Seldén

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70mm Double Block Plain...

Glass fibre reinforced sheave with Polymer bushing. Optimised 6/8 shackle with Ø6 body for good compatibility and Ø8 pin for high bending resistance. Stainless steel strap for best strength and longer service life. Stiff glass fibre reinforced composite cheeks to prevent lines from wedging. Sliding swivel locking mechanism. 

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