RF40300 - Ronstan Series 40 Ball Bearing Block - Triple - Swivel Head

Series 40 Ball Bearing Block - Triple - Swivel Head

Features:

• Low friction Acetal or Torlon® bearing system
• Lightweight
• Cheek cut-outs for easy bearing maintenance
• Features a swivel shackle head for full 360° rotation

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.

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, fiber reinforced Nylon cheeks

The Ronstan Series 40 Ball Bearing Block - Triple - Swivel Head is a component designed for managing lines in marine applications. This triple block features a swivel shackle head, allowing for 360-degree rotation, which can be beneficial for dynamic rigging setups. Its design incorporates Acetal or Torlon ball bearings, intended to provide low friction and consistent performance across varying load ranges, supported by a two-stage bearing system. Maintenance is facilitated by cheek cut-outs. Constructed with a UV-stabilized Acetal sheave, Grade 316 stainless steel load strap, and fiber-reinforced Nylon cheeks, this block is built for durability in marine environments. It is suitable for use with mainsheet, halyard, vang, and spinnaker control lines on off-the-beach catamarans, one design classes, and sportsboats up to 8 meters (26 feet). The part number for this item is RF40300.