Ball bearing blocks are used where the loads are more moderate and dynamic. The ball bearings provide for good sheave rotation with the lowest possible friction. Available in 20, 30, 40 and 60 mm sheave diameters.
Stainless steel ball bearing races, stainless steel ball bearings and Acetal sheave for best bearing strength even under high dynamic loads.
Acetal bearing cage to prevent ball-to-ball friction and to reduce weight.
Glass fibre reinforced composite.