Ronstan Series 20 BB Single Orbit Block - Becket Hub, Webbing Head - RF21107.  Low friction, consistent performance.  2-stage ball bearing system.  Suits up to 10 mm webbing or RF9003-07 Dyneema link.  Hollow hub for becket take-off
Materials
Sheave: High compression strength carbon black Acetal
Frame / Cheeks: Toughened glass fibre reinforced nylon
Load straps and ball bearings: Grade 316 stainless steel
Specifications
Sheave Dia: 20 mm
Max. Rope Dia: 5 mm
Max. Cable Dia: - mm
Pin Dia: - mm
MWL: 200 kg
BL: 400 kg
Weight: 14 g
                    
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