Ronstan RF54000 Series 50 Ball Bearing Sheave – 50mm AlloyThe Ronstan RF54000 Series 50 Ball Bearing Sheave is engineered for high performance sailing applications. With a 50mm diameter and 12mm width, it features a solid alloy construction and oversize Torlon ball bearings that minimize friction and ensure smooth operation. Suitable for ropes up to 8mm in diameter, this sheave is compatible with Ronstan's Series 50 blocks, making it an ideal choice for various marine rigging needs. Ronstan Series 50 Ball

Perfect for:

replacement

Outlet hose: 32mm dia

marine-grade distribution – available now at Barton Marine NZ

Durable anodised alloy body

Certified Level 50 PFD under AS 4758

flexible rigging

the RC91901 provides a secure attachment point for various rigging configurations

the RF30100 delivers excellent load-carrying capability with minimal effort

metal and acrylic components

Protect your valuable or delicate items from all the elements with the OverBoard Dry Tube

quick-draining materials