Sheaves RWO plain bearing sheaves all have moulded acetal resin central bearings. Acetal is a particularly good material for wear resistance and high strength and low friction as a bearing. The aluminium sheaves are machined from solid and anodised to protect from corrosion and abrasion resistance.
The stainless steel ball bearing sheaves are precision machined from solid and have plastic cage systems to keep the balls running freely.
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