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. Double and triple blocks have a swivel shackle head for full 360° rotation.
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Spécifications
| Bearing type | Ball bearing |
| Bearing material | Acetal |
| Cordage recommandé – Ø Max (mm) | 12 |
| Ø réas (mm) | 50 |
| Sideplate material | Nylon |
| Winch | Non |
| Sheave material | UV stabilised acetal |
| Charge de travail (kg) | 800 |
| Charge de rupture (kg) | 2000 |
| Poids (g) | 254 |
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