General Parts

Ronstan All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life,...

40mm ball bearing block from Ronstan in fiddle block configuration with an included cam cleat. This 40mm range features sheaves running on Acetal bearings that provide high performance & low friction. The 2-stage ball bearing system provides...

40mm ball bearing block from Ronstan in fiddle block configuration. This 40mm range features sheaves running on Acetal bearings that provide high performance & low friction. The 2-stage ball bearing system provides consistent performance under the...

Ronstan Swivel cleat bases permit easy cleating and releasing from any angle.This cam cleat swivel has a dead eye containing a stainless steel liner for low friction and long life. Features adjustable stops to limit rotation, which can be removed to...

Ronstan swivel cleat bases permit easy cleating and releasing from any angle. This RF6 swivel with cam cleat is perfect for mainsheet systems on small sailboats up to 15 feet and fits line up to 8 mm diameter. Glass fibre reinforced base and cleat arm...

Swivel cam cleat with bullseye fairlead. The plastic jaw Cammatic is matched with the standard bullseye fairlead for great performance. Used on many Hobie sailboats. Hobie Part Number 50007

Swivel cleat bases permit easy cleating and releasing from any angle. Sheave can be relocated up or down to allow the control line to feed from below. Series 20 ball bearing sheave Small "T-Cleat" "Fast Track" fairlead

Ball bearing swivel bases feature dual rows of Delrin ball bearings that swivel freely even under high loads. Bases include stand-up springs and a U-adaptor to accept a variety of appropriate blocks. The low profile 205 is used when installation is at...

The Harken 240 Swivel Cam Cleat is a simple swivel base for main and jib sheets on very small boats or for control lines on boats of all sizes. This model works with line up to 12 mm and great for large diameter sheets. Height: 49 mm / 1-15/16 inch...

Swivel cleat bases permit easy cleating and releasing from any angle. The adjustable arm controls the height for optimum cleating angle. The dual rows of race ball bearings in the base minimize friction, while the adjustable ratchet system prevents the...

This is the smallest and lightest Ronstan ball bearing block available. A Precision moulded acetal sheave running on stainless steel ball bearings provide high performance & low friction. Features lateral supports for improved mounting stability...

The Ronstan 30mm Orbit block is small and compact. Used on high performance boats, these blocks are used by the best and perform for the best. Made from advanced fiber and polymer technology, these blocks are ten times stronger than steel, yet more...

Ronstan's ball bearing blocks were conceived and engineered for the demands of competitive sailing in all types of boats and have rapidly become the international choice for high performance hardware. Highly efficient, low friction bearing systems for...

The 16 mm is Harken’s® smallest block. It is perfect for small synthetic control lines found on high-tech dinghies. The patented bearing system uses stainless steel balls in a captive grooved race and has a 250 lb (113 kg) maximum working load...

Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. Sheave: 40 mm / 1 9/16 in...

Low-friction Bullet blocks lead control lines aft. They are compact and lightweight, with fast trim and release under high or low loads. A range of styles lets these blocks adapt to almost all control line applications. Sheave: 29 mm / 1 1/8 in Length:...