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Series 20 Ball Bearing Orbit Block Single, suits 10mm (3/8'') webbing

Cat.No:  4818 Sup. No:  RF21107

Availability: In stock

RRP: $17.48

our price $15.75
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  • Low friction
  • Consistent performance
  • 2-Stage ball bearing system
  • Suits up to 10mm (3/8") webbing or RF9003-07 Dyneema link
  • Hollow hub for becket take-off 


  • Sheave: 20 mm
  • Max. Rope: 5 mm
  • M.W.L. 200 kg
  • B. L. 400 kg
  • Weight: 14 g


  • Leech / control lines
  • Cunninghams 


  • Sheave: high compression strength carbon black Acetal
  • Frame:/Cheeks: Toughened, glass fibre reinforced Nylon
  • Load straps and ball bearings: Grade 316 stainless steel

Australia's largest marine accessories retailer. Serving boat owners since 1962. With sixteen big supermarkets and mail order departments Australia wide Whitworths Marine & Leisure offers the best service, convenient locations, a huge selection of quality products, and unbeatable prices.