Ronstan Series 60 Lashing Orbit Block

Manufacturer part #: RF69109A

The highest strength-to-weight ratio

Minimal friction loss, especially when working at high loads

Totally reliable and trouble free performance

Simplicity of design and construction to facilitate maintenance and servicing

Elegant, functional styling and finish

Orbit Blocks„¢ are a no-compromise product range developed to meet the demands and expectations of the very dedicated and increasingly professional racing sailor. Side cheeks incorporating head structure and hub are precision machined as a single part from solid alloy, leaving material only where it contributes to the load carrying capacity of the block and eliminating the need for additional fasteners. The Orbit sheave has captive ball bearings for side thrust loads, eliminating the need for side retainer plates. This reduces weight and allows for a wider bearing surface that can accommodate longer Torlon° needles  – achieving a substantially higher strength-to-weight ratio.

Due to their direct attachment capability Lashing blocks are extremely versatile. They can accept multiple lashing lines at the head and the hollow hub can be utilised as a becket take-off. Unlike others on the market, these hollow hubs feature large radii to minimise rope fatigue.

Materials

Fully machined Alloy cheek plates

Alloy sheaves with captive ball races

Torlon° needle rollers

Acetal guide rollers

Carbon black Acetal ball bearings - Series 60 and 80