1/4" (6mm) Ronstan Single, loop head, Ball Bearing Block

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  • Low friction
  • High static and dynamic load capacity
  • Lightweight

Precision moulded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction.

Used for:

  • Dinghy control lines
  • Dinghy vangs
  • Cunninghams
  • Traveller controls

Can be fitted with a shackle in either of two planes to allow correct alignment of the block.

Reference Imperial Metric
Sheave Ø 3/4 in. 20 mm
 Max. Rope Ø  1/4 in. 6 mm
Pin Ø 1/8 in. 3 mm
M.W.L. 550 lb. 250 kg
B. L. 1210 lb. 550 kg
Weight 0.7 oz. 16 g
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