Ronstan RF20302 Series 20 Ball Bearing Triple 2-axis Shackle Head Block

The Series 20 ball bearing block from Ronstan features a triple, 2-axis shackle head design that offers exceptional performance and versatility. Constructed with precision-molded acetal sheaves running on stainless steel or Torlon® ball bearings, this block provides low friction and high static and dynamic load capacities, making it an ideal choice for a variety of marine applications.

The lightweight and durable construction of the Series 20 ball bearing block is achieved through the use of stainless steel ball bearings, UV-stabilized acetal sheaves, and impact- and UV-resistant, fiber-reinforced nylon cheeks. The two-way head can be fixed at either 0° or 90°, allowing for greater flexibility in its installation and use.

This versatile block is well-suited for a wide range of applications, including dinghy control lines, dinghy vangs, cunninghams, and traveler controls. Its high-performance characteristics and low-friction design make it a reliable and efficient choice for sailors and boaters who demand the best in marine hardware.

The Series 20 ball bearing block from Ronstan has a sheave diameter of 20mm (3/4"), a maximum rope diameter of 6mm (1/4"), and a pin diameter of 4mm (5/32"). Its working load limit is 400kg (880lbs), with a breaking load limit of 850kg (1,870lbs). The overall weight of the block is 62g.

In summary, the Ronstan Series 20 ball bearing block is a well-engineered, high-quality piece of marine equipment that offers excellent performance, durability, and versatility. Its innovative design and robust construction make it a popular choice among sailors and boaters who require reliable and efficient hardware for their vessels.

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