80 mm Roller Bearing Block - Double, Swivel Optimist That means

That means

Ideal for control lines on dinghies and keelboats as well as flag line applications on yachts

A solid track with no holes for installation

polymer sheave

Length: 87 mm

80 mm Roller Bearing Block - Double, Swivel Optimist That meansThe RBB80 Double Roller Bearing Block is designed for high load, dynamic applications. Made with top quality materials like machined black anodised aluminium and Torlon roller bearings, it ensures durability and performance under all conditions. The marine grade stainless shaft is swiveling but can be fixed in 0 or 90 position with a set screw. It is hollow and chamfered to reduce weight and the shackle is optimized with a 6 mm body and 8 mm pin. All