STAINLESS STEEL SERIES

The sides, the central cup, the head are made of AISI 316 stainless steel (perfectly polished), with all the edges smoothed off for better handling.

The sheaves are easy to dismantle for cleaning and need no lubrication.

The nuts and bolts have been replaced with recessed screws and pins so eliminating any projecting parts.

The steel coupling revolves on a fibre washer and can easily be locked in one of two main positions.

HIGH-STRENGTH RESIN SHEAVES
All blocks in sizes 65, 75 and 90 mm have high-strength resin sheaves to reduce weight while retaining their capacity for very high work loads. Sizes 120, 150 and 180 mm still use thickly anodized aluminium sheaves.

The main bearing* is made of high-strength composite fibre impregnated with self-lubricating substances. A double lateral Delrin ball bearing makes the sheaves slide perfectly smoothly.
 

*	Size 65 is fitted with a simple resin sheave with double side ball bearings, but without the "Composite Fibre" bearing.