Blocks

Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers.Precision moulded Acetal sheaves r...

Low-friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats o...

Hook-in block, ball bearing as used on the Optimist Blackgold racing masts.Due to the curved saddle the block for Optimist sailing rests against th...

20% Off Ronstan S55 Orbit Tiple Block! Specifications Sheave diameter: 55mm Maximum rope diameter: 10mm Maximum Working Load: 1000kg Breaking Load...

20% Off Ronstan Pulley! Two (66mm) diameter deep groove nylon sheaves with a stainless steel body and plated bronze swivel ring. Specifications Sh...

The incredible Series 20 Orbit Block is capable of loads up to 300kg while weighing a mere 21 grams. It's so light that it needs to be lashed down!...

The incredible HHL Series 20 Orbit Block is capable of working loads of up to 450kg while weighing a mere 26 grams. It's so light that it needs to ...

The incredible Series 20 Orbit Block is capable of working loads of up to 300kg while weighing a mere 14 grams. It's so light that it needs to be l...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

The new Series 40 ball bearing Orbit Blocks™ provide the perfect balance of strength, performance, and reliability. They offer class-leading dynami...

Standup springs to suit Series 20 single blocks.   A - mm B 16.5 mm C 22.0 mm D 1.2 mm Weight 3 g     Materials: Grade 316 stainl...

These sheaves are made from a unique plastic material which is suitable for use with wire.  Nylatron® is a cast, partially cross-linked polyamide ...

Ronstans range of Acetal sheaves is moulded from specially modified ultra-violet resistant grade of material to provide a long service life in the...

Ronstans range of Acetal sheaves is moulded from specially modified ultra-violet resistant grade of material to provide a long service life in the ...

Ronstans range of Acetal sheaves is moulded from specially modified ultra-violet resistant grade of material to provide a long service life in the...

16mm AirBlocks offer very high working loads in an extremely small, lightweight block.These diminutive blocks feature a patented bearing system usi...

Can be used in conjunction with saddle RF94A for stand up block configuration.    A - mm   B 20.0 mm   C 32.0 mm   D 2.0 mm   Weight 3 g ...

Springs are used to support blocks on padeyes, eye-straps, bases and traveller cars. Keeps blocks from hitting the deck. Features: A: 51mm B: 22mm ...

Ronstans range of Acetal sheaves is moulded from specially modified ultra-violet resistant grade of material to provide a long service life in the...

Ronstans range of Acetal sheaves is moulded from specially modified ultra-violet resistant grade of material to provide a long service life in the...

Springs are used to support blocks on padeyes, eye-straps, bases and traveller cars. Keeps blocks from hitting the deck. Features: A: 64mm B: 35mm ...

Springs are used to support blocks on padeyes, eye-straps, bases and traveller cars. Keeps blocks from hitting the deck. Features: A: 25mm B: 19mm ...

Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Applications: Typically used i...

Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. When mounted in an inverted posit...

Ronstan manufactures an extensive range of sheave boxes for use with rope and wire. Plain bearing sheaves are ideal for halyards and other applica...

Precision moulded Acetal sheaves running on Acetal ball bearings provide high performance & low friction. The 2-stage ball bearing system prov...

Sheaves have a deep groove to cradle 5mm (3/16") diam. wire. Applications: Ideal for small runabouts where hydraulic steering is not needed. ...

16mm AirBlocks offer very high working loads in an extremely small, lightweight block.These diminutive blocks feature a patented bearing system usi...

Micro blocks are small, lightweight, free-running blocks. They are ideal for use on sailboards, smaller dinghies, and for lightly loaded control li...

Yacht sheave boxes are ideal for halyard exit and entry boxes with special side flanges to minimise friction. HA8A have a nylon casing and alloy s...