Blocks-Ronstan

Ball Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available.  This is achieved through all-composite reinforced polymer materials and multiple attachment options.  
Their precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fibre-reinforced composites in the block head, cleat arms and beckets.

Bozzello singolo con cricco automatico serie 55

Automatic ratchet block

Awesome ratchet block holding power

Precision moulded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction.Can be fitted with a shackle in either of two planes to allow correct alignment of the block.

Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Can be fitted with a shackle in either of two planes to allow correct alignment of the block.

Precision moulded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction.Can be fitted with a shackle in either of two planes to allow correct alignment of the block.

Block double Ronstan series 20mm

Block double Ronstan, fiddle series 55

Single block of Ronstan series 40 AP

Block has a single ORBIT of the Ronstan series 55