Harken 57mm Black Magic Blocks
Harken 57mm Black Magic blocks are a top favorite of Big Boat performance racers and cruisers. These lightweight, free-running, powerful performers are used for sail controls that see lots of action: mainsheet, runner, halyard, and spinnaker systems.
A center cage keeps Torlon® roller bearings separated and parallel to reduce friction. Shackle blocks lock in two directions or swivel to keep line from twisting.
Black Magic blocks have a modular parts system allowing majority of the parts to be serviced and replaced. Side plates, ball bearings, head posts etc are all replaceable. Just remove the 3 allen bolts and the side plate to service. We have seen these blocks in great condition on 15 year old boats!
- Mainsheet systems
- Mast Base Blocks
- Sheet Blocks
- Downhaul systems
To talk to us about a custom Harken hardware package call us on +442381 550 059 or email firstname.lastname@example.org
|Block Type||Break Load||SWL||Line Size|
|Low Load Single Swivel||1500kg||750kg||12mm|
|Low Load Single Swivel + Becket||1500kg||750kg||12mm|
|Low Load Double||1500kg||750kg||12mm|
|Single Swivel + Becket||2268kg||1134kg||12mm|