Allen 40mm Dynamic Ball Bearing Blocks


40mm Flip Flop Block with Ball Bearing Cleat


Allen 40mm Flip Flop Block with Ball Bearing Cleat


40mm Flip Flop Block with Ball Bearing Cleat

Flip flop blocks are designed to pivot around a central fixing point, this keeps the rope close to the deck, mast or boom whilst still allowing the block to articulate to the correct lead angle, ensuring friction stays as low as possible whilst still guiding the rope to where it needs to go.

Relocatable Sheave – Features two locations to install the dynamic sheave.

Dynamic Bearings – The sheave features Allen's dynamic ball bearing technology.

Removable – A clevis pin holds the main flip flop body to the backing plate.

Aluminium Cam Cleat – Also featured is the AL-0076 medium ball bearing cam cleat.

Ideal for use on many different classes of boats and in a wide range of applications:

Upgrade to J70 spinnaker halyard cleat, F18, Nacra 17 – spinnaker halyard cleat, small keelboat pole launcher system.
Dinghy and small keelboat spinnaker or jib sheet turning point, dinghy jib sheet cleat, keelboat outhaul cleat or backstay system.


Part Description Line
Ø mm
Fixing Hole
Ø mm
Fixing Hole
Centre mm
Max Work
Load Kg
Load Kg
AL-2143-76 Flip flop block with ball bearing cleat 10 60.3 5 150 800 255 £104.30 EACH






contact us

ProBoat Ltd
Burnham Business Park,
Burnham - on - Crouch,

Phone - +44 (0)1621-785455
E mail - info@proboat.co.uk



Although great care is taken to ensure the information in this website is accurate, all information is given for guidance only and is not contractual.
We reserve the right to alter specifications without notice. The purchaser is responsible for choosing the correct product for it's particular application.
All goods are supplied according to our conditions of sale.