2022 Ronstan Marine Catalogue - VIEW CATALOGUE

Indicative product image. Actual product may differ slightly from that shown.



  • Exit and sheave boxes are ideal for applications where lines (rope or wire) need to be led through decks, bulkheads or spars minimising friction and chafing.

  • Share:
Precision moulded Acetal sheaves running on Acetal ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.
Sheave 30 mm
Max. Rope 8 mm
Max. Cable - mm
Fastener 5.0 mm
M.W.L.300 kg
B. L.750 kg
Weight60 g
  • Exit blocks minimise friction in lines passing through the deck, bulkheads or masts and booms.
  • Cheeks & housings: Grade 316 stainless steel
  • Cheeks a housings: Aluminium alloy, anodised black RF45711, RF45711HL, RF45711N
  • BB & AP sheaves: UV stablised acetal
  • HHL sheaves & balls: Grade 2205 stainless steel
  • Acetal ball bearings
  • UV stabilised Acetal sheave
  • Impact and UV resistant, fibre reinforced Nylon cheeks