![Ronstan Series 30 Ball Bearing Block - Single - Loop Top [RF30101]](https://www.bestmarinebattery.com/wp-content/uploads/2026/08/ronstan-series-30-ball-bearing-block-single-loop-top-rf30101.webp)
Description
Description
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 fittings
Specifications:
Sheave Ø:30mm(1-3/16″)
Max. Rope Ø:8mm(5/16″)
M.W.L.:300kg(660lbs)
B. L.:750kg(1,650lbs)
Weight:28g(1.0oz)
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