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Ronstan Orbit BB Blocks


Ronstan Orbit BB Blocks

Ronstan Ball Bearing Orbit Blocks have been engineered to achieve the highest possible strength-to-weight ratio, using composite reinforced polymer materials and a Dyneema link attachment instead of metal components.

The unique orbital version of our 2-stage ball bearing system maximizes the available bearing surface and positions recirculating ball bearings exclusively within the loaded area of the sheave. A secondary full-contact bearing maintains low friction across the full working load range.

The Dyneema link, realized in high-grade SK75 fiber, is easily fitted and retained securely by a molded retainer clip. The flexible link allows limited articulation in a 0° or 90° orientation, while swivel head models with stainless steel shackles provide full rotation and ultimate durability.

Orbit Blocks are fitted with our carbon-fiber reinforced C-Cleat for secure rope holding with low entry and exit efforts and fairleads for fast action from any angle. Cleat arms have a wide range of adjustment and calibration marks for setting your preferred cleating angle.

MAURIPRO Sailing, your direct access to Ronstan Orbit BB Blocks and all your other sailing and boating needs.