Ratchet blocks significantly improve performance on hand controlled lines. Ratchet blocks allow you to trim and ease sails more easily and with more control. A ratchet block works just like a ratcheting wrench, it allows the sheave to turn in only one direction. Most Ratchet blocks have an on/off feauture to allow them to also work as a free rolling block. New Ratchet blocks from Harken and Ronstan (the Harken Ratchmatic and the Ronstan Orbit Blocks).
About Harken Ratchet Blocks
Harke Carbo Ratchet blocks are 60% stronger and 30% lighter than the classic Hexararchet blocks. he nylon resin sideplates are densely packed with long-glass fibers for a compact block with a high strength-to-weight ratio. Ball bearings, sheave, and sideplates are UV-stabilized with carbon black for maximum protection. Harken Carbo Ratchet blocks are available in 57 and 75mm sizes and have an on/off switch for the ratcheting feature.
Harken Carbo Ratchmatic blocks are load-sending ratchet block that rolls freeling in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light-air modes is seamless with the Automatic Ratchmatic blocks from Harken. Unloaded main and jib sheets run out freely during mark roundings and asymmetrical spinnakers free instantly during jibes. Harken Ratchmatic automatic ratchet blocks are available in 57mm and 75mm sizes.
About Lewmar Ratchet Blocks
About Ronstan Ratchet Blocks
We at Mauri Pro Sailing are fully committed to be your Ratchet Block specialist not only providing the sailing community with a comprehensive and easy to use web site but with all the appropriate technical information that you might need to select your sailboat hardware and equipment. If you need any assistance selecting the appropriate Ratchet Blocks for your sailboat please contact us. Our crew is ready to help!