80 mm Roller Bearing Block - Single, Stand Up Locking Adhesive it lifts the boom when

it lifts the boom when the kicking strap is released

Ideal as the top block in a cascade system

Seldén Roller Bearing Blocks (RBB) is our performance range and unrivalled in terms of low friction for the trimmer to endure driving the boat forward for longer periods of time

The BBB30 Single Swivel Block is a 30mm ball bearing block with a swiveling shaft

80 mm Roller Bearing Block - Single, Stand Up Locking Adhesive it lifts the boom whenThe RBB80 Single Stand Up Block is designed for heavy duty, high load applications. Featuring a 80 mm sheave, the block is made from machined black anodized aluminium with Torlon roller bearings for maximum performance under load. The stainless stand up base and spring ensures optimal positioning and polymer thrust bearings provide resistance to side loads. A polymer washer insulates stainless steel from aluminium to prevent corrosion. Ideal for