Ronstan RF159109A Series 150 Orbit Lashing Orbit Block

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. For comprehensive installation
instructions see:

Lashing Block Installation Instructions

 

Materials

• Fully machined Alloy cheek plates
• Alloy sheaves with captive ball races
• Torlon needle rollers
• Acetal guide rollers
• Torlon ball bearings – Series 100, 125 and 150

Features:

• 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.

Specifications:

Sheave diameter	150 mm
Max. Rope diameter	24 mm
Max. Cable diameter	– mm
Pin diameter	– mm
M.W.L.	9000 kg
B. L.	27000 kg
Weight	1570 g