There are many commercial uses of our pulley block and tackle products, as well as replacement sheaves, bearings and bushings, such as:

Boat Docks • Boat Lifts • Boat Rigging • Yachts • Model Yachts • Commercial Fishing • Sails and Sail Boats • Trailers • Yachts

Pulleys on a boat are called blocks (as in "block and tackle").  They are used anywhere you need to change the direction of a pull on a rope, and also to create a mechanica advantage.  Pulleys are used in sailing because of the amount of force that is needed to change the shape of the sails.  For example, to hoist a saile up a mast, the halyward (rope to hoist the sale) will pass through a block at the top of the mast so that while standing on the deck, you can pull down on the rope and the sale will go up.

Scroll down to see slideshows of just some of the many different uses. 

If you have photos you would like to share with us, please send them to



  • Specialized sheave reboarded for custom marine & Wahoo Dock boat dock application

  • Specialized sheave custom for marine & Wahoo Dock boat dock application with borings & flat mount

  • Boat lifted and stored safely using customized cable pulley block sheave

  • Boat lift storage using heavy duty pulley blocks by BlockDivision

  • Pontoon boat securely lifted out of the water using BlockDivision pulley blocks

  • Industrial strength cable pulley blocks securely hold speed boat out of the water

  • Close up view of customized sheave pulley used for heavy duty boat lift

  • View of industrial strength specialized pulley sheave used in lifting boats out of the water

  • View of a custom sheave pulley designed that has been in use for a long time in lifting a boat out of the water for easy storage