Description
Size-for-size in our expanding range, Harken Zircon blocks are the most efficient small boat blocks Harken has ever made. At the core of Zircon performance are industrial ceramic ball bearings mounted inside caged races. The cages keep these bearings apart so they don’t bunch up, touch, and stop each other. The result is a very free-running block with less energy lost to friction. Give an unrigged Zircon block a strong spin, and it spins for an incredibly long time. Zircon bearings are more than 700% stronger in compression than stainless bearings of the same size. So, they stay really smooth and won’t deform--within recommended load limits. More importantly, they don’t absorb as much energy before starting to roll. This becomes evident when you need to ease a sheet or multi-part control line in light air. You can react to very slight fluctuations in line load. When used expertly, that means better sail shape and more speed.
- Zircon Series
- Single Block w/ Becket
- Harken Part Number 2186
- Length (mm) 54 mm
- Length (in) 2 1/8 in
- Weight (g) 12.6 g
- Weight (oz) 0.44 oz
- Maximum working load (kg) 80 kg
- Maximum working load (lb) 175 lb
- Breaking load (kg) 240 kg
- Breaking load (lb) 525 lb
- Maximum line Ø (mm) 6 mm
- Maximum line Ø (in) 1/4 in
- Sheave Ø (mm) 29 mm
- Sheave Ø (in) 1 1/8 in
Product Reviews
Shipping & Returns
Delivery Info: Enjoy Free Standard Shipping on most orders* to the Continental United States over $99. Our Standard Shipping method utilizes USPS, UPS, and FedEx to send packages near and far. Oversize/Freight shipping (where applicable), Expedited Shipping (where available), and rates to other destinations will be calculated at checkout.
See our Shipping Page for more information (and exceptions).
Returns Info: Your 100% satisfaction is our goal - we want you to love your sailing gear, but if something doesn't work out, we accept returns on most new, unused items*. Returns can be made within 366 days (1 year + 1 day) of your original order date. Exceptions include (and are not limited to) cut line, Rig Shop products, special order items, numbered sailors, and items used or worn sailing.
See our Returns Page for more information.
