CLGR® JIS Ship Wooden Block With Link Single Sheave, also known as JIS Wood Pulley With Link.
This JIS Wood Pulley With Link is a critical component for traditional and modern sailing vessels, engineered specifically for lifting sails, adjusting rigging, and mast control.
Crafted from high quality wood and fitted with a hot-dip galvanized steel link, this wooden block minimizes line chafing while providing a smooth 180° rope redirection.
It is designed to work in conjunction with ropes, providing mechanical advantage and changing the direction of force. This allows crew members to handle heavy loads with less effort.
Surface treated with galvanization for marine environments. Available in sizes from 180inch to 240inch to suit various rope diameters.
Brand | China CLGR® |
Material | Carbon steel/Wood |
Craft | Machining/Stamping/Forging/Hot Dipped Galvanized |
Size | 180inch, 200inch, 220inch, 240inch |
Sheave | Single Sheave |

Part No. | Size/in | SWL/Ton | Diam | ∅ | L | A | B | Weight(KG) |
CRJWBL01 | 180 | 0.29 | 18mm | 117 | 332 | 144 | 82 | 3.62 |
CRJWBL02 | 200 | 0.35 | 20mm | 130 | 366 | 160 | 89 | 4.73 |
CRJWBL03 | 220 | 0.42 | 22mm | 143 | 399 | 176 | 97 | 6.48 |
CRJWBL04 | 240 | 0.5 | 24mm | 156 | 422 | 192 | 103 | 8.44 |