A strong, lightweight block ideal for use on dinghies and dayboats or as lead blocks on larger craft. 

Barton plain bearing blocks have a precision moulded acetal sheave running on a large diameter brass bearing, ensuring free running under the highest of loads

Techy Bits & Dimensions

• Sheave size: 30mm x 12mm (1 3/16 x 15/32")
• Max rope diameter: 8mm (5/16") 
• SWL: 350kg (771lbs)
• Break load: 700Kg (1543 lbs) 
• Length: 91mm
• Weight: 82g

Important note - break loads 

• Where break and safe working loads are stated, it is assumed that all sheaves are evenly loaded as in a purchase tackle. Uneven loading, or loading of one sheave in a double or triple block, will severely affect strength quoted. If unsure, please seek further assistance.