Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Applications: Typically used in dinghy spars for control lines Materials: U...

Ronstan Series 75 Roller Bearing Block, Upright Lead, Single Single, upright lead The self-contained alloy sheave packages provide reliable, low-friction performance at high loads. The high axial...

Ronstan Series 125 Roller Bearing Block - Upright Lead, Single Ronstan single upright lead. Ball bearing models have Torlon® needle rollers for axial loads, and acetal ball bearings for side...

Ronstan Series 100 Roller Bearing Block, Upright Lead, Single Ball Bearing models have Torlon® needle rollers for axial loads, and acetal ball bearings for side thrust loads. The self-contained alloy...

Ronstan Series 60 Upright Lead, Single Upright All Purpose Lead Ball Bearing models have Torlon® needle rollers for axial loads, and acetal ball bearings for side thrust loads. Blocks can be...

Ronstan Series 75 Upright Lead, Single Features   High static and dynamic load capacity. Keeps lines close to the deck. Cheek cut-outs for easy bearing cleaning and maintenance...