Harken 40 mm Stand-up Carbo Block 2652
- Brand:
- Harken
- Part no:
- 2652
Image: Fisheries Supply
Where to buy
View on Amazonpaid link
Specifications
- Sheave diameter
- 40 mm
- Bearing
- Ball
- Max working load
- 220 kg
- Breaking load
- 735 kg
- Becket
- Yes
- Swivel
- Fixed
- Side plates
- Composite
Manuals
- Installation guide (PDF)180sails.com
The Harken 2652 is a 40 mm stand-up Carbo block. It is built from fiber-reinforced composite that is lightweight, strong and reliable. The block runs on ball bearings, and the sheave and sideplates are UV-stabilized. Harken lists it for main and jib sheets as well as control lines.
Our take
Fiber-reinforced composite construction on this 40 mm stand-up block keeps it lightweight, and the ball bearings let it turn freely under main or jib sheet loads. The UV-stabilized sheave and sideplates mean sun exposure has been allowed 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.


