Ball Bearing

RF129151A

Series 125 Foot Orbit Block™, Single

Single sheave foot block. Requires 1x 8mm fastener and 2x 12mm fasteners

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

Product Specifications
Sheave diameter (mm)125
B.L. (kg)10000
M.W.L. (kg)5000
Max. Rope diameter (mm)18
Weight (g)750
Fastener Ø (mm)8 & 12
Qty. Fasteners3

Product Information

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 acetal or Torlon® 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.

The bottom hub section is machined from solid alloy for maximum integrity of the load bearing structure. The top cover plate protects the sheave against impact, prevents dirt and grit from entering the hub area, and can be removed for service access.

Technical Information

Applications

  • Primary mainsheet blocks on boats to 18m (6ft).
  • Secondary mainsheet blocks, spinnaker systems, halyards on boats to 22m (72ft).
  • Running backstay systems on boats to 18m (6ft)

 

Materials

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

 

Resource Files

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