Description
Ronstan Series 50 Upright Lead Block – RF50171:
Lead blocks are a low-profile solution for leading halyards or other rig sail controls back to cleats or jammers. Precision moulded Acetal sheaves running on Acetal ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.
All purpose (AP) blocks are a great all-around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Captive Lock universal head can be fixed in either of two planes, or free to swivel as required.
Features:
- Exceptionally high working loads.
- Low maintenance, long service life.
- Self-lubricating Acetal polymer sheave ensures low friction and extreme durability.
Application:
- Mainsheet and halyard applications, vang and spinnaker control lines on boats to 10m (33ft).
- S60 – on boats up to 12m (40ft).
Materials:
- Grade 316 stainless steel load strap.
- Impact and UV resistant, fibre reinforced Nylon cheeks.
| Product No | Max Rope Dia mm (in) | Sheave Dia mm (in) | Max Working Load g (lb) | Beak Load kg (lb) | Weight g (oz) | Pin Dia mm (in) | Fasteners mm (in) |
|---|---|---|---|---|---|---|---|
| RF50101 | 12 (1/2) | 50 (2) | 500 (1100) | 1500 (3310) | 97 (3.4) | - | - |
| RF50100 | 12 (1/2) | 50 (2) | 500 (1100) | 1500 (3310) | 117 (4.1) | 5 (3/16) | - |
| RF50110 | 12 (1/2) | 50 (2) | 500 (1100) | 1500 (3310) | 133 (4.7) | 5 (3/16) | - |
| RF50171 | 12 (1/2) | 50 (2) | 500 (1100) | 1500 (3310) | 116 (4.1) | - | 6 (1/4) |
| RF50200 | 12 (1/2) | 50 (2) | 800 (1760) | 2000 (4410) | 254 (9) | 6 (1/4) | - |
| RF50500 | 10 (3/8) | 54 + 34 (2 1/8 + 1 5/16) | 500 (1100) | 1500 (3310) | 166 (5.9) | 5 (3/16) | - |
| RF50530 | 10 (3/8) | 54 + 34 (2 1/8 + 1 5/16) | 500 (1100) | 1500 (3310) | 334 (11.8) | 5 (3/16) | - |
