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Ronstan Orbit Ballbearing Blocks

 Ronstan Sailboat Hardware

Ronstan Orbit Ballbearing Blocks

Ball Bearing Orbit BlocksTM 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 maximises 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, realised in high-grade SK75 fibre, is easily fitted and retained securely by a moulded 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 BlocksTM are fitted with our carbon-fibre reinforced C-CleatTM 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.

Ronstan Orbit Ballbearing Blocks series 20   Ronstan Orbit Ballbearing Blocks series 30  Ronstan Orbit Ballbearing Blocks Series 40
 Series 20  Series 30  Series 40

Ronstan Orbit Ballbearing Blocks series 55

Ronstan Orbit Blocks 70 Series
 Series 55  Series 70 Accessories