Harken Sheave - Big Boat - Wide Sheave - Sheave Dia: 3.0 in (76.0 mm)

The Big Boat Wide Sheaves #603 is perfect for those special applications and replacements in Big Boat blocks where durability and performance are key. Made from 6061-T6 aluminum, these sheaves are designed to handle high radial loads effortlessly. They're built to last with quality materials that offer great protection against the elements.

Crafted with the sailor in mind, these 76mm diameter sheaves are an excellent choice for those in need of reliable replacement parts for their Big Boat blocks. The unique combination of Torlon® rollers and carbon-black Delrin® balls ensures they handle stress from various angles while offering strong UV resistance. Perfect for sailing gear where reliability and material quality make all the difference.

Our Part # HAR603 | Mfr. Part # 603

• Constructed from hardcoat-anodized, PTFE-impregnated 6061-T6 aluminum for enhanced durability
• Torlon® rollers support high radial loads
• Delrin® balls provide sideload support and UV protection