Ronstan 55mm Ratchet Cheek Block

Ronstan 55mm Ratchet Cheek Block


These come in left- and right-handed, please choose from drop down. 
Clockwise or Anti-clockwise. 

Awesome ratchet block holding power. 

Sheave: Anodised Aluminium. 

Ball Bearings: High compression strength carbon black Acetal. 

Frame/Cheeks: Toughened, glass fibre reinforced Nylon. 

Quite simply, Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power is up to 21:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load.

Sheave Ø: 55 mm
Max. Rope Ø: 10 mm

M.W.L: 250 kg
B. L: 700 kg
Weight: 76 g