Ronstan makes a variety of sheaves than can be used in a number of custom and replacement applications. Common applications of Ronstan sheaves include halyards and other lines leaving masts and fairleads for control lines. Ronstan sheaves are also used in several industrial and commercial marine applications. Depending on the load and friction requirement, different ronstan sheaves are used. Another important factor to consider when selecting a sheave is the diameter. The correct sheave needs to fit into the masthead or box that it is going into. Larger sheaves can help distribute the load of the line and reduce resistance. The dimension of each sheave can be found on the individual product pages.
About Ronstan Acetal Ball Bearing Sheaves
Ronstan Acetal ball bearing sheaves are precision moulded and run on Acetal or Torlon ball
bearings to provide high performance & low friction. Ronstn U.V. resistant
acetal sheaves operate with very little friction when placed under moderate loads.Ronstan Acetal oilite bearing sheaves feature
self lubricating Oilite Bronze bearings for greater load capacity and
high strength Bronze, which ensures that the surface is always lubricated. Ronstan's range of Acetal sheaves is moulded from a specially modified
ultra-violet resistant grade of material to provide a long service
life in the tough marine environment. Acetal is well suited to the
application, with characteristics of high strength and resistance to
impact and wear. Ronstan Acetal sheaves also exhibits excellent low friction properties
for bearing applications.
About Ronstan Nylatron Sheaves
Ronstan Nylatron sheaves are made from a unique
plastic material which is suitable for use with wire. Nylatron is
a cast, partially cross-linked polyamide compound which has been modified
a MoS2 filler. It has excellent wear resistance, self lubrication and
low friction properties. If you need a new wire sheave for a halyard, Ronstan Nylatron sheaves are a good option.
About Nylon Ronstan Sheaves
Ronstan Nylon sheaves are made with glass reinforcement
for greater strength and abrasion resistance. Ronstan Nylon sheaves are used
for high load applications and are available in a 100mm and 75mm version.
About Ronstan Sheave Boxes
Ronstan manufactures an extensive range of sheave boxes for use with both
rope and wire. Plain bearing sheaves are ideal for halyards and other
applications where high static loads are likely to be encountered. This is because they have no ball bearing that could get deformed as time goes on. In some applications, especially with older boats, replacing the entire sheave box is easier than trying to replace just the sheave itself. The
Ronstan Sheave Boxes
use Nylatron Sheave within a grade 316 stainless
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for your marine application please
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