Description
Ronstan Series 30 Upright Lead Block – RF30171 – Lead blocks are a low-profile solution for leading halyards or other rig sail controls back to cleats or jammers.
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.
- 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
- 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
| Product No | Sheave Dia mm (in) | Max Rope Dia mm (in) | Max Working Load kg (lb) | Break Load kg (lb) | Weight g (oz) | Pin Dia mm (in) | Fasteners mm (in) |
|---|---|---|---|---|---|---|---|
| RF30100 | 30 (1 3/16) | 8 (5/16) | 300 (660) | 750 (1650) | 34 (1.2) | 4 (5/32) | - |
| RF30101 | 30 (1 3/16) | 8 (5/16) | 300 (660) | 750 (1650) | 28 (1) | - | - |
| RF30110 | 30 (1 3/16) | 8 (5/16) | 300 (660) | 750 (1650) | 40 (1.4) | 4 (5/32) | - |
| RF30111 | 30 (1 3/16) | 8 (5/16) | 300 (660) | 750 (1650) | 34 (1.2) | - | - |
| RF30141 | 30 (1 3/16) | 8 (5/16) | 300 (660) | 750 (1650) | 38 (1.3) | - | - |
| RF30171 | 30 (1 3/16) | 8 (5/16) | 300 (660) | 750 (1650) | 30 (1.1) | - | 5 (3/16) |
| RF30174 | 30 (1 3/16) | 8 (5/16) | 300 (660) | 650 (1430) | 50 (1.8) | - | 5 (3/16) |
| RF30285 | 30 + 20 (1 3/16 + 3/4) | 8 + 6 (5/16 + 1/4) | 250 (550) | 550 (1210) | 44 (1.6) | - | - |
| RF30711 | 30 (1 3/16) | 8 (5/16) | 300 (660) | 750 (1650) | 35 (1.2) | - | 5 (3/16) |
| RF30721 | 30 (1 3/16) | 8 (5/16) | 300 (660) | 750 (1650) | 60 (2.1) | - | 5 (3/16) |
