Ronstan Series 75 Core Block - Halyard, Screw Pin with Roller head rudder Twin Flat shaft drive -

Twin Flat shaft drive -

The Orbit sheave has captive Acetal or Torlon® ball bearings for side thrust loads

Height: 122mm

Small: Overall Diameter: 102mm

Ronstan Series 75 Core Block - Halyard, Screw Pin with Roller head rudder Twin Flat shaft drive -Core Blocks are a true all round solution. A tuned 2 stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for