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Selden Products

Selden 40mm Triple Block (404-101-08)



Selden 40mm Triple Swivel Block

Ball bearing blocks are used where the loads are more moderate and dynamic. The ball bearings provide for good sheave rotation with the lowest possible friction. Available in 20, 30 and 40 mm sheave diameters.


Stainless steel ball bearing races, stainless steel ball bearings and glass fibre reinforced sheave for best bearing strength even under high dynamic loads.

Acetal bearing cage to prevent ball-to-ball friction and to reduce weight.

Glass fibre reinforced composite.

Weight: 168g

Safe Working Load: 750kg

Breaking Load: 1500kg

Max Line Size: 10mm

Shackle Pin Diameter: 5mm


Ball bearing blocks are typically used for medium and dynamic loads in:

Control lines on dinghies and keelboats.

Leech line applications on yachts

Dinghy applications

Mainsheet applications on dinghies

Vang applications


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