Description
Ronstan Series 30 BB Block, Stand Up Loop Top
Sheaves running on Acetal or Torlon ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.
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.
Specifications:
- Max. Rope diameter (in): 5/16
- Sheave diameter (in): 1 3/16
Materials:
- U.V. stabilised Acetal sheaves.
- Acetal ball bearings.
- Impact modified, fibre reinforced and U.V. stabilised Nylon cheeks.
- Grade 316 stainless steel load straps and head fittingsAcetal ball bearings.






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