# Ronstan Series 20 Ball Bearing Block - Single [RF20100]

**Series 20 Ball Bearing Block - Single**  
  
**Features:**  

-   Low friction  
    
-   High static and dynamic load capacity  
    
-   Lightweight  
    
-   Precision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction

  
  
**Applications:**  

-   Dinghy control lines  
    
-   Dinghy Vangs  
    
-   Cunninghams  
    
-   Traveller controls

  
  
**Materials:**  

-   U.V. Stabilized Acetal sheaves  
    
-   Stainless steel ball bearings  
    
-   Grade 316 stainless steel load strap and head fitting  
    
-   Impact and UV resistant, fiber reinforced Nylon cheeks

  
  
**Specifications:**  
**Sheave Ø:** 20mm(3/4")  
**Max. Rope Ø:** 6mm(1/4")  
**Pin Ø:** 3mm(1/8")  
**M.W.L.:** 250kg(550lbs)  
**B. L.:** 550kg(1,210lbs)  
**Weight:** 20g(0.7oz)

## Details

- **Price:** 23.14 USD
- **Type:** Outrigger Accessories
- **Tags:** 1st Class Eligible, Brand_Ronstan, Hunting & Fishing, Hunting & Fishing | Outrigger Accessories, MAP

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 23.14 USD | In stock |

## Images

- Ronstan Series 20 Ball Bearing Block - Single [RF20100] Ronstan

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> Source: [Besafe1st](https://besafe1st.com/products/ronstan-series-20-ball-bearing-block-single-rf20100)
> Updated: 2026-06-03