Ronstan Series 40 BB Double 2 Axis Shackle Head Block

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.

Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required

Features

• Low friction Acetal or Torlon® bearing system
• Lightweight
• Cheek cut-outs for easy bearing maintenance
• Slotted pin shackle eliminates fouled lines
• Two way head post
• Low friction, 2-stage ball bearing system
• High static and dynamic load capacity
• Lightweight
• Cheek cut-outs for easy bearing maintenance

Specifications

• Sheave: 40 mm
• Max. Rope: 10 mm
• Max. Cable: - mm
• Pin: 5.0 mm
• M.W.L. 500 kg
• B. L. 1200 kg
• Weight: 134 g

Applications

• Mainsheet
• Halyard
• Vang
• Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)

Materials

• Acetal ball bearings
• UV stabilised Acetal sheave
• Grade 316 stainless steel load strap and head fitting
• Impact and UV resistant, fibre reinforced Nylon cheeks