Selden Blocks – BBB30 Double Clew/Ring

BBB’s are used where the loads are more moderate & dynamic. The ball bearings provide for good sheave rotation with the lowest possible friction. Available in 20, 30, 40, and 60 mm sheave diameters. 20/30/40

• Stainless steel strap to ensure high strength & stiff sides.
• Stainless steel ball bearing races, stainless steel ball bearings & acetal sheave for best bearing strength even under high dynamic loads.
• Acetal bearing cages to prevent ball-to-ball friction & to reduce weight.
• Glass fibre reinforced composite.
• Acetal ball bearings for light weight.
• Acetal sheave.