5/16" (8mm) Ronstan Single, swivel shackle head, Ball Bearing Block
- SKU:
- RF30100
Description
Features:
- Low friction 2-stage ball bearing system provides consistent performance over the full working load range.
- High static and dynamic load capacity.
- Light weight
- Versatile head fittings
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.
Used for:
- Primary lead blocks on dinghies and catamarans
- Control lines on larger yachts
Materials
- U.V. stabilised Acetal sheaves
- Acetal ball bearings
- Impact modified, fibre reinforced and U.V. stabilised Nylon cheeks
- Grade 316 stainless steel load straps and head fittings
- Acetal ball bearings
- UV stabilised Acetal sheave
- Grade 316 stainless steel load strap and head fitting
- Impact and UV resistant, fibre reinforced Nylon cheeks
| Reference | Imperial | Metric |
| Sheave Ø | 1-3/16 in. | 30 mm |
| Max. Rope Ø | 5/16 in. | 8 mm |
| Pin Ø | 5/32 in. | 4 mm |
| M.W.L. | 660 lb. | 300 kg |
| B. L. | 1650 lb. | 750 kg |
| Weight | 1.2 oz. | 34 g |
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316 Stainless steel cheeks and U.V. stabilised Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be...