- Low friction
 - High static and dynamic load capacity
 - Lightweight
 - Suitable for screw or pop rivet mounting
 
Precision moulded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction.
Range Seletion Advice: https://www.ronstan.com.au/marine5/SAblocks.asp
| Part Number | Sheave Ø | Max. Rope Ø | Max. Cable Ø | Pin Ø | M.W.L. | B. L. | 
			 Weight  | 
		
|---|---|---|---|---|---|---|---|
| RON-RF20151A | 20mm | 6mm | mm | mm | 200kg | 550kg | 17g |