Ronstan Series 20 Stand-Up Ball Bearing Block, RF20141
Ronstan
AUD $16.95
AUD $18.46
(You save
AUD $1.51
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The Ronstan Series 20 Stand-Up Ball Bearing Block (RF20141) is a compact, high-performance block designed for dinghies, small keelboats, and performance craft where smooth operation and low friction are essential.
Featuring Ronstan’s precision-engineered stainless steel ball bearings, this block delivers exceptional efficiency under both high static and dynamic loads. The stand-up base keeps the block upright and ready for use, preventing line snags and ensuring clean lead angles for control systems.
Ideal for vangs, mainsheet systems, outhauls, cunninghams, and control lines, the RF20141 combines a lightweight polymer sheave with a UV-stabilised reinforced frame for durability in harsh marine environments. Compact, strong, and easy to integrate into modern deck layouts, it’s the perfect choice for sailors seeking reliable, race-proven rigging performance.
Single sheave stand-up block with saddle & spring
FEATURES
Low friction.
High static and dynamic load capacity.
Lightweight
Specifications
| Type of Block | Stand-Up |
|---|---|
| Sheave diameter (mm) | 20mm |
| B.L. (kg) | 550 |
| M.W.L. (kg) | 250 |
| Max. Rope diameter (mm) | 6 |
| Weight (g) | 20 |
| Rope Ø (mm) | 6 |
| Fastener Ø (mm) | 4 |
| Fastener Hole Centres (mm) | 38 |
| Length (mm) | 127 |
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