Ronstan Series 40 AP Sheave - Acetal Solid Bearing - 40mm (1-9/16")OD

The Ronstan Series 40 AP Sheave - Acetal Solid Bearing is a compact, lightweight pulley designed for demanding marine rigging systems. It is ideal for sailors, boaters, and fishing crews who require reliable block systems for halyards, sheets, and load-bearing tackle. This sheave is engineered to deliver smooth operation and precision rotation in both saltwater and freshwater environments.

Constructed from acetal copolymer, this sheave is resistant to UV exposure and saltwater corrosion, ensuring durability under mechanical stress. The solid bearing design eliminates the need for external lubricants, providing low-friction rotation even under load. This feature makes it particularly suitable for unattended deck systems or emergency scenarios.

Experienced boat owners and professional riggers trust the Ronstan Series 40 sheaves for applications such as halyards, jib sheets, and reefing systems. Its compact 40mm diameter and lightweight construction make it easy to integrate into existing rigging setups without adding unnecessary load. This sheave is a reliable choice for anyone looking to enhance their marine rigging efficiency.