Ronstan Series 45 Core Block - Stand-Up, Swivelling ronstan rope 40mm sheave alloy torlon ball bearing Sheaves run on duplex stainless

Sheaves run on duplex stainless steel hubs and incorporate precision composite journal bearings and thrust washers

Velvet drive

Coupling to suit either:

Suits narrow (N1-N7) feet

Ronstan Series 45 Core Block - Stand-Up, Swivelling ronstan rope 40mm sheave alloy torlon ball bearing Sheaves run on duplex stainlessCore 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