Ronstan Series 150 Lashing Orbit Block

Ronstan Series 150 Lashing Orbit Block
Item# RF159109A
Regular Price: $2,399.00
Our Price: $2,039.15

Product Description

Ronstan Orbit Series 150 Single Lashing Block


  • 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.

    Sheave Ø - 6 in.

    Max. Rope Ø - 1 in.

    Max. Wire Ø - in.

    Pin Ø - - in.

    Max. Working Load - 19840 lb

    B. L. - 59520 lb

    Weight - 55.40 oz

    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 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.


  • Mainsheet and genoa sheet systems on boats to 25m (82ft)

  • Spinnaker systems, halyards on boats to 28m (92ft)

  • Running backstay systems on fractionally rigged boats to 20m (65ft) or 25m (82ft) masthead


  • 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