Ronstan Series 20 BB Single, Becket Hub Block

Ronstan BB Orbit BlocksTM feature a unique Lashing head.

Building on the latest trends in grand prix dinghy and ocean racing, it replaces the steel head post and shackle arrangement of traditional blocks.

Features

• Suits up to 4mm (5/32”) lashing
• Supplied with 750mm (30”) x 2mm (3/32”) diameter,
• Dyneema® single braid lashing line

Specifications

• Sheave Ø  20 mm
• Max. Rope Ø  6 mm
• Max. Cable Ø  mm
• Pin Ø  mm
• M.W.L. : 300 kg
• B. L. : 900 kg
• Weight: 14 g

Applications

• Leech / control lines
• Cunninghams
• Ideal for higher load applications

Materials

• Sheave: high compression strength carbon black Acetal
• Frame:/Cheeks: Toughened, glass fibre reinforced Nylon
• Load straps and ball bearings: Grade 316 stainless steel
• HHL sheave and bearing race: Grade 2205 stainless steel, Balls: Grade 316
• Frame/Cheeks: Toughened, glass fibre

* Block must be lashed through hub. The supplied lashing line must have three passes through head and hub to achieve rated load. MWL & BL are dependent on the strength of lashing. Knots, splices, stitching will generally have a lower BL than the line itself.

  Usage Instructions