Harken 57 mm Carbo Block Swivel (2600)
- Brand:
- Harken
- Part no:
- 2600
Image: Fisheries Supply
Where to buy
Specifications
- Sheave diameter
- 57 mm
- Bearing
- Ball
- Swivel
- Swivel
Manuals
- User manual (HTML)manualmachine.com
Harken's 57 mm Carbo Block is a single swivel block made from fiber-reinforced composite. The maker says it is 60% stronger and 30% lighter, though what it is measured against is not stated. The ball bearings, sheave and side plates are all UV-stabilized, so the plastic and moving parts are made to handle sun exposure. The swivel type lets the head turn rather than stay fixed.
Our take
Harken puts this 57 mm swivel block at 60% stronger and 30% lighter, and it gets there with fiber-reinforced composite. The ball bearings, sheave and side plates are all UV-stabilized, so sun on deck is something the design allows for.
From our buying guide
Ball-bearing blocks give the lowest friction on lines running under moderate loads. Plain bearings have more friction, but handle very high and static loads.
Check before you buy:
- A ratchet block is rated for the full sheet load.
- Any becket's load limit suits the job, since a becket can be rated below the block itself.
- A soft-attach block will be looked after, since Harken warns soft attachments are prone to wear and recommends them only for regularly maintained race boats.