Description
Ronstan Series 30 Ball Bearing Block – Single – Loop Top – Marine Boat Replacement Part is organized for lighting & visibility shoppers who need a clear, professional marine parts buying experience.
Series 30 Ball Bearing Block – Single – Loop Top Features: Low friction 2-stage ball bearing system provides consistent performance over the full working load range High static and dynamic load capacity Light weight Versatile head fittings Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction Can be fitted with a shackle in either of two planes to allow correct alignment of the block Applications: Primary lead blocks on dinghies and catamarans Control lines on larger yachts Materials: U.V. stabilized Acetal sheaves Acetal ball bearings Impact modified, fiber reinforced and U.V. stabilized Nylon cheeks Grade 316 stainless steel load straps and head fitting
Fitment & Product Details
- Brand / Manufacturer: Ronstan
- Material: stainless steel, nylon
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- Verify compatibility with your original part number, engine model, and application before ordering.
- Built for boat owners, e-commerce shoppers, and professional marine service teams.






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