Ronstan series 20 Ball Bearing Block with Swivel Shackle

Ronstan series 20 Ball Bearing Block with Swivel Shackle

18 in stock

The Ronstan Ball Bearing Block with Swivel Shackle is a high-performance block designed to provide smooth, consistent rotation under load. Its ball-bearing system minimizes friction, allowing fast and efficient line handling in dynamic maneuvers. This model incorporates a swivel shackle that maintains perfect alignment with the pulling direction and prevents unnecessary twist in the system. It is an ideal technical solution for sailors demanding precision, durability, and immediate response in sheet and halyard control systems.

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At Saildeck Gear, we specialize in technical rigging, blocks, winches, and deck hardware for boats between 30 and 60 feet. We know that every boat is different: working loads, mast dimensions, the type of maneuver, and how you use your boat—cruising, racing, or charter—all affect what you actually need.

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Tell us which product you’re interested in and which boat you’ll be installing it on, and we’ll prepare a quote tailored to your setup, including technical advice and with no obligation.

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