Ronstan Series 60 Core Block - Single, Fiddle, Cleat ronstan ball bearing series 40 - triple becket swivel shackle head to provide front lever operated

to provide front lever operated fore and aft sliding of seat

Quite simply

measures 62mm across 31mm high

Large backing plate

- Meets EN ISO 11547 standards when X12 safety switch is installed

Ronstan Series 60 Core Block - Single, Fiddle, Cleat ronstan ball bearing series 40 - triple becket swivel shackle head to provide front lever operatedCore 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