Harken self-contained sheaves are designed for sailors to use in custom applications.
The Micro, Bullet and Big Bullet sheaves are Delrin® with Delrin® ball bearings. They are scored for rope. 16 mm AirBlock® sheaves are Delrin® and feature stainless ball bearings that ride in a grooved race. Midrange sheaves come in either Delrin® or aluminum for wire. Wire sheaves ride on high-load composite bearings. They are Hardkote-anodized aluminum with Teflon® impregnation. Ball bearings in the 11/2 in (38 mm) and 2 in (51 mm) sheaves minimize friction. The 1 in (25 mm) wire sheave uses low-friction washers for this purpose.
Use Cruising ESP sheaves to handle high static loads from halyards and reef lines. Sheaves are carbon-black Delrin® for UV protection and turn on stainless steel spacers. Contained sideload ball bearings allow sheaves to spin freely when loads are released. Sheaves require a sideplate for the sideload balls to roll on.
Use for: Custom applications.
Part Number: 307
|Sheave Dia.||1 1/2"||38 mm|
|Weight||1 oz||28 gr|
|Max Wire Dia.||1/8"||3 mm|
|Center Pin Dia.||1/4"||6.27 mm|
|Maximum Working Load||1500 lbs||680 kg|
Need help to design your Harken system - take a look here for the Harken System Guides and Drawings
Or perhaps you need some other information (load calculators, block selectors, service instructions or manuals)? Take a look here for all the official Harken Support Information