Ronstan Series 60 Core Block - Mast Base, Clevis Pin Head MUDX To replace and secure the

To replace and secure the cap

Smallest and lightest ball bearing block available

supplied with 1/4" key

allowing it to be retro fitted to practically all other sender brands

Ronstan Series 60 Core Block - Mast Base, Clevis Pin Head MUDX To replace and secure theCore 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