Ronstan Series 55 Ball Bearing Orbit Block™ - Single - Becket - Swivel Head – Marine Boat Replacement Part is organized for lighting & visibility shoppers who need a clear, professional marine parts buying experience.

Series 55 Ball Bearing Orbit Block™ - Single - Becket - Swivel Head Lightweight Kilogram for kilogram of working load, BB and RT Orbit Blocks™ are the world's lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimises the mass of the inactive return race and hub. Weight and bulk are further reduced in the different block configurations. The ball bearing single and becket block has a through-sheave becket arrangement. The result? The lowest weight possible. Multi-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement. This gives a 30% weight saving advantage over the nearest competi

Fitment & Product Details

• Brand / Manufacturer: Ronstan

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