Purchase Ronstan Ball Bearing Single Blocks online here. 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 cruising and racing.
Applications
Ideal for mainsheet, halyard and spinnaker sheet applications on boats to 11m (36ft).
Various control line applications on larger yachts.
Alloy sheave models are available for use with wire.
We can ship to:
Melbourne – Sydney – Brisbane – Perth – Adelaide – Hobart
