60 mm Ball Bearing Block - Single, Tie-On, Heavy Duty Keelboat The swivelling shackle comes with

The swivelling shackle comes with ø8 mm body and ø10 mm pin to optimize strength and weight saving

The 60 mm Fiddle Becket Plain Bearing Block is designed for 4:1 tackles and features acetal sheaves

It is ideal for heavy loads in halyard

and glass fiber reinforced cheeks provide rigidity

60 mm Ball Bearing Block - Single, Tie-On, Heavy Duty Keelboat The swivelling shackle comes withThe BBB60 Tie On Heavy Duty Block offers maximum flexibility and strength for rigging systems. The 60 mm sheave is supported by stainless steel ball bearings and stainless ballbearing races, reducing friction and enhancing durability. Acetal bearing cages to prevent ball to ball friction and to reduce weight. The glass fiber reinforced cheeks ensure long term durability and resistance to wear. This block is ideal for dynamic use, offering tie on