Ronstan's Series 50 Utility Blocks feature sheaves running on Acetal or Torlon® ball bearings to provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range. Fiddle blocks are ideal for fine-tune mainsheet tackles, cunninghams and other control line purchase systems. The Captive Lock™ universal head can be fixed at 0° or 90°, or left free to swivel.
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Spécifications
| Bearing type | Ball bearing |
| Bearing material | Acetal |
| Cordage recommandé – Ø Max (mm) | 10 |
| Ø réas (mm) | 54 |
| Sideplate material | Nylon |
| Winch | Non |
| Sheave material | UV stabilised acetal |
| Charge de travail (kg) | 500 |
| Charge de rupture (kg) | 1500 |
| Poids (g) | 166 |
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