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Description
The Harken Zircon Block delivers ultra-smooth, efficient line handling for small boats and performance sailing. Featuring industrial ceramic ball bearings in caged races, it reduces friction and lets trimmers fine-tune sail shape instantly. Lightweight yet strong, Zircon blocks are available in multiple sheave sizes and configurations to match a variety of control line needs.
Harken Zircon Block Item # 1002986
Description
Zircon Blocks are designed to provide fast, responsive trimming performance with low-friction ceramic bearings for sailing applications ranging from dinghy control lines to multi-purchase systems. Multiple single, double, and triple configurations allow sailors to optimize rigging layouts for different loads and control requirements.
Features:
- Low-friction ceramic bearing design supports fast and responsive trimming
- Suitable for dinghy control lines and multi-purchase systems
- Compact lightweight construction supports efficient rigging layouts
- Available in single, double, and triple sheave configurations
- Select models include integrated beckets for additional rigging options
Specifications:
- 29 mm (1 1/8") Models:
- Maximum Line Diameter: 6 mm (1/4")
- Single Models:
- Length: 43 mm (1 11/16")
- Maximum Working Load: 80 kg (175 lbs)
- Breaking Load: 240 kg (525 lbs)
- 2186 includes becket
- Double Models:
- Length: 54 mm (2 1/8")
- Maximum Working Load: 160 kg (350 lbs)
- Breaking Load: 480 kg (1050 lbs)
- 2188 includes becket
- Triple Models:
- Length: 43 mm (1 11/16")
- Maximum Working Load: 240 kg (525 lbs)
- Breaking Load: 720 kg (1575 lbs)
- 1211 includes becket
- 40 mm (1 9/16") Models:
- Maximum Line Diameter: 8 mm (5/16")
- Single Models:
- Length: 60 mm (2 3/8")
- Maximum Working Load: 115 kg (250 lbs)
- Breaking Load: 340 kg (750 lbs)
- 2191 includes becket
- Double Models:
- Length: 73 mm (2 7/8")
- Maximum Working Load: 230 kg (500 lbs)
- Breaking Load: 680 kg (1500 lbs)
- 2193 includes becket
- Triple Models:
- Length: 60 mm (2 3/8")
- Maximum Working Load: 345 kg (750 lbs)
- Breaking Load: 1020 kg (2250 lbs)
- 1212 includes becket
- 57 mm (2 1/4") Models:
- Maximum Line Diameter: 10 mm (3/8")
- Single Models:
- Length: 79 mm (3 1/8")
- Maximum Working Load: 150 kg (330 lbs)
- Breaking Load: 450 kg (990 lbs)
- 2196 includes becket
- Double Models:
- Length: 79 mm (3 1/8")
- Maximum Working Load: 300 kg (660 lbs)
- Breaking Load: 900 kg (1980 lbs)
- 2198 includes becket
- Triple Models:
- Length: 79 mm (3 1/8")
- Maximum Working Load: 450 kg (990 lbs)
- Breaking Load: 1350 kg (2970 lbs)
- 1213 includes becket