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Ronstan 20 mm Double Block

$27.95
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SKU:
60322
MPN:
RF20202
UPC:
9316800255559

Availability:

IN STOCK


Ronstan's ball bearing blocks were conceived and engineered for the demands of competitive sailing in all types of boats and have rapidly become the international choice for high performance hardware.

  • Highly efficient, low friction bearing systems for optimum sheeting and trimming performance
  • Precision moulded Acetal sheaves running on stainless steel or TorloníëŒÇí«Œå ball bearings provide high performance & low friction and provides a unique 2-Stage bearing system:
    • Stage 1: Under moderate loads, Acetal ball bearings ensure minimum friction
    • Stage 2: Under heavy loads, where deformation of ball bearings alone would result in increased friction, a sliding Acetal bearing on a polished Stainless steel race takes over, maintaining low friction performance