Ronstan Series 20 BB Single Orbit Block – Becket Hub, Lashing Head – RF25109. The incredible Series 20 Orbit Block is capable of loads up to 250 kg (550 lb) while weighing a mere 9 grams. It is so light that it needs to be lashed down!

Integrated stainless steel hub to accept lashing attachment and through-sheave becket. Suits up to 4 mm lashing. 750 mm x 1.7 mm diameter lashing cord included.

Materials

Sheave: High compression strength carbon black Acetal

Frame / Cheeks: Toughened nylon

Specifications

Sheave Dia: 20 mm

Max. Rope Dia: 6 mm

Max. Cable Dia: – mm

Pin Dia: – mm

MWL: 250 kg

BL: 550 kg

Weight: 9 g

Notes: Block must be lashed through hub. The supplied lashing line must have three passes through head and hub to achieve rated load.