Ronstan RF69151 Series 60 Orbit Block Single Foot

Orbit blocks are a no-compromise product range developed to meet the demands and expectation 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 Acetal 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.

Features through-hub mounting for maximum strength and can be stacked to create a double (total block load same as single, maximum load on top sheave not to exceed 50% of total block load).Cover plate can be removed for service access without removing t

Applications

• Primary mainsheet, halyard and spinnaker systems on boats to 12m (40ft)
• Secondary mainsheet, vang systems on boats to 14m (46ft)
• Standard and running backstay systems on boats to 10m (33ft)
• General control line and lead block applications on larger yachts

Materials

• Fully machined Alloy cheek plates
• Alloy sheaves with captive ball races
• Torlon needle rollers
• Carbon black Acetal ball bearings

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.
• Stackable to create double version
• Removable cover plate

Specifications:

Sheave diameter	60 mm
Max. Rope diameter	12 mm
Max. Cable diameter	- mm
Pin diameter	- mm
M.W.L.	1800 kg
B. L.	4000 kg
Weight	190 g