Sailing Triple Blocks
- Lewmar®Ball Bearing Sheave Triple Utility Block with Becket & Swivel Shackle for 3/8" D Lines (29901426BK)Ball Bearing Sheave Triple Utility Block with Becket & Swivel Shackle for 3/8" D Lines by Lewmar®. If you’re an avid sailboat enthusiast looking to enhance your experience on the water, then top-quality sailing products offered on our...High quality at an affordable priceExpertly made from premium materials$81.70
- Harken®Carbo Triple Utility Block with Becket & Swivel Shackle for 3/8" D Lines (2641)Carbo Triple Utility Block with Becket & Swivel Shackle for 3/8" D Lines by Harken®. Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small,...High quality at an affordable priceExpertly made from premium materials$143.95
- Harken®Carbo Triple Utility Block with Swivel Shackle for 3/8" D Lines (2640)Carbo Triple Utility Block with Swivel Shackle for 3/8" D Lines by Harken®. Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact...High quality at an affordable priceExpertly made from premium materials$137.95
- Harken®Element Triple Utility Block with Becket & Swivel Shackle for 1/2" D Lines (6241)Element Triple Utility Block with Becket & Swivel Shackle for 1/2" D Lines by Harken®. Element blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very...High quality at an affordable priceExpertly made from premium materials$139.95
- Harken®Element Triple Utility Block with Becket & Swivel Shackle for 9/16" D Lines (6273)Element Triple Utility Block with Becket & Swivel Shackle for 9/16" D Lines by Harken®. Element blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very...High quality at an affordable priceExpertly made from premium materials$192.05
- Harken®Element Triple Utility Block with Swivel Shackle for 1/2" D Lines (6240)Element Triple Utility Block with Swivel Shackle for 1/2" D Lines by Harken®. Element blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust....High quality at an affordable priceExpertly made from premium materials$129.55
- Harken®Element Triple Utility Block with Swivel Shackle for 9/16" D Lines (6272)Element Triple Utility Block with Swivel Shackle for 9/16" D Lines by Harken®. Element blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust....High quality at an affordable priceExpertly made from premium materials$170.10
- Harken®Triple Utility Block with Becket & Fixed Eye for 7/32" D Lines (409)Triple Utility Block with Becket & Fixed Eye for 7/32" D Lines by Harken®. 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...High quality at an affordable priceExpertly made from premium materials$52.95
- Harken®Triple Utility Block with Becket & Loop Head for 1/4" D Lines (229)Triple Utility Block with Becket & Loop Head for 1/4" D Lines by Harken®. Low-friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats of all sizes. If...High quality at an affordable priceExpertly made from premium materials$52.95
- Harken®Triple Utility Block with Fixed Eye for 7/32" D Lines (408)Triple Utility Block with Fixed Eye for 7/32" D Lines by Harken®. 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...High quality at an affordable priceExpertly made from premium materials$49.95
- Harken®Triple Utility Block with Loop Head & Cam Cleat for 1/4" D Lines (230)Triple Utility Block with Loop Head & Cam Cleat for 1/4" D Lines by Harken®. Low-friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats of all sizes....High quality at an affordable priceExpertly made from premium materials$112.95
- Harken®Triple Utility Block with Loop Head for 1/4" D Lines (228)Triple Utility Block with Loop Head for 1/4" D Lines by Harken®. Low-friction Micro blocks are compact and lightweight. They are ideal for sailboards, smaller dinghies, and lightly loaded control lines on boats of all sizes. If you’re...High quality at an affordable priceExpertly made from premium materials$51.95
- Harken®Triple Utility Block with Swivel Shackle for 5/16" D Lines (344)Triple Utility Block with Swivel Shackle for 5/16" D Lines by Harken®. Low-friction Carbo Air blocks are lightweight, strong, reliable—and affordable. Companions to the popular Harken Black Magic block line, these small, compact...High quality at an affordable priceExpertly made from premium materials$67.95
- Ronstan®15 Series Ball Bearing Shave Triple Utility Block with Becket & Loop Head for 3/16" D Lines (RF15312)15 Series Ball Bearing Shave Triple Utility Block with Becket & Loop Head for 3/16" D Lines by Ronstan®. If you’re an avid sailboat enthusiast looking to enhance your experience on the water, then top-quality sailing products offered...Smallest and lightest ball bearing block availablePrecision moulded acetal sheave running on stainless steel ball bearings provide high performance & low friction$36.57
- Ronstan®15 Series Ball Bearing Shave Triple Utility Block with Loop Head for 3/16" D Lines (RF15302)15 Series Ball Bearing Shave Triple Utility Block with Loop Head for 3/16" D Lines by Ronstan®. If you’re an avid sailboat enthusiast looking to enhance your experience on the water, then top-quality sailing products offered on our...Smallest and lightest ball bearing block availablePrecision moulded acetal sheave running on stainless steel ball bearings provide high performance & low friction$33.29
- Ronstan®20 Series Ball Bearing Shave Triple Utility Block with 2-Axis Shackle for 1/4" D Lines (RF20302)20 Series Ball Bearing Shave Triple Utility Block with 2-Axis Shackle for 1/4" D Lines by Ronstan®. Precision moulded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction. Two-way...Low frictionHigh static and dynamic load capacity$41.48
- Ronstan®20 Series Ball Bearing Shave Triple Utility Block with Becket & 2-Axis Shackle for 1/4" D Lines (RF20312)20 Series Ball Bearing Shave Triple Utility Block with Becket & 2-Axis Shackle for 1/4" D Lines by Ronstan®. Precision moulded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction....Low frictionHigh static and dynamic load capacity$45.31
- Ronstan®20 Series Ball Bearing Shave Triple Utility Block with Becket, Cam Cleat & 2-Axis Shackle for 1/4" D Lines (RF20332)20 Series Ball Bearing Shave Triple Utility Block with Becket, Cam Cleat & 2-Axis Shackle for 1/4" D Lines by Ronstan®. Precision moulded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low...Low frictionHigh static and dynamic load capacity$87.35
- Ronstan®30 Series Acetal Sheave Triple Utility Block with Loop Head for 5/16" D Lines (RF82)30 Series Acetal Sheave Triple Utility Block with Loop Head for 5/16" D Lines by Ronstan®. Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. If you’re an avid sailboat enthusiast...Lightweight durable constructionEconomical$37.66
- Ronstan®30 Series Orbitblock™ Ball Bearing Shave Triple Utility Block with Becket for 5/16" D Lines (RF35312)30 Series Orbitblock™ Ball Bearing Shave Triple Utility Block with Becket for 5/16" D Lines by Ronstan®. Ball Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available. This is achieved through all-composite...LightweightHighest working load in its class$52.40
- Ronstan®30 Series Orbitblock™ Ball Bearing Shave Triple Utility Block with Shackle for 5/16" D Lines (RF35302)30 Series Orbitblock™ Ball Bearing Shave Triple Utility Block with Shackle for 5/16" D Lines by Ronstan®. Ball Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available. This is achieved through all-composite...LightweightHighest working load in its class$50.22
- Ronstan®40 Series Acetal Sheave Triple Utility Block with Becket & Swivel Shackle for 3/8" D Lines (RF41310)40 Series Acetal Sheave Triple Utility Block with Becket & Swivel Shackle for 3/8" D Lines by Ronstan®. All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel...Exceptionally high working loadsLow maintenance, long service life$84.07
- Ronstan®40 Series Acetal Sheave Triple Utility Block with Swivel Shackle for 3/8" D Lines (RF41300)40 Series Acetal Sheave Triple Utility Block with Swivel Shackle for 3/8" D Lines by Ronstan®. All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races...Exceptionally high working loadsLow maintenance, long service life$76.42
- Ronstan®40 Series Ball Bearing Sheave Triple Utility Block with Becket & Swivel Shackle for 3/8" D Lines (RF40310)40 Series Ball Bearing Sheave Triple Utility Block with Becket & Swivel Shackle for 3/8" D Lines by Ronstan®. Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system...Low friction Acetal or Torlon® bearing systemLightweight$91.72
- Ronstan®40 Series Ball Bearing Sheave Triple Utility Block with Swivel Shackle for 3/8" D Lines (RF40300)40 Series Ball Bearing Sheave Triple Utility Block with Swivel Shackle for 3/8" D Lines by Ronstan®. Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides...Low friction Acetal or Torlon® bearing systemLightweight$82.98
- Ronstan®50 Series Acetal Sheave Triple Utility Block with Swivel Shackle for 1/2" D Lines (RF51300)50 Series Acetal Sheave Triple Utility Block with Swivel Shackle for 1/2" D Lines by Ronstan®. All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races...Exceptionally high working loadsLow maintenance, long service life$94.66
- Ronstan®55 Series Orbitblock™ Ratchet Sheave Triple Block with Becket, Cam Cleat & Swivel Shackle, Auto for 3/8" D Lines (RF56330B)55 Series Orbitblock™ Ratchet Sheave Triple Block with Becket, Cam Cleat & Swivel Shackle, Auto for 3/8" D Lines by Ronstan®. Automatic ratchet block. Now you can enjoy the flexibility of setting up your ratchet blocks to suit...Up to 20:1 holding powerSmooth easing of sheets$199.99
- Rupp Marine®Quad Halyard Lok-Up (CA-0157-4)Quad Halyard Lok-Up by Rupp Marine®. Rupp Lok-Up's are an innovative new patented pulley system that locks down your halyard lines, keeping your outrigger release clips right where you want them. Robust modular design is adaptable to...High quality at an affordable priceExpertly made from premium materials$114.08
- Rupp Marine®Triple Halyard Lok-Up (CA-0157-3)Triple Halyard Lok-Up by Rupp Marine®. Rupp Lok-Up's are an innovative new patented pulley system that locks down your halyard lines, keeping your outrigger release clips right where you want them. Robust modular design is adaptable to...High quality at an affordable priceExpertly made from premium materials$88.84
Even newbie sailors are familiar with blocks. They are crucial parts of the rigging outfit of every sailboat and are used to maneuver sheets and lines and lift loads. Essentially, modern blocks are pulleys comprising a frame, a grooved wheel to house the rope, and any accessories related to their specific function; as for their name, it comes from the past when they were simple drilled wooden blocks. The most common design is the sheave block. Depending on the desired mechanical characteristics, these blocks can have one, two, or three sheaves. Typically, triple sailing blocks can lift more than 7,000 lbs.
Another frequent design is the ratchet block, popular in dinghies to reduce the tug on a line or sheet. Besides ratchet types, there are ball bearing and plain bearing sheave designs. Overall, the wheels can house lines whose diameter ranges from less than 1'' to 3''. Common frame materials include marine-grade metal and plastic. Special configuration features include beckets, shackles, cam cleats, and loop heads, among others. In our store, you can find a broad choice of industry-leading sailing triple blocks to fit your sailboat. We provide only excellent products manufactured by trusted companies to ensure performance and long-lasting efficiency at affordable prices.