Series 40 Ratchet Orbit Block™ - Single - Auto - Swivel Shackle Head Automatic Ratchet With automatic models, the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. Awesome Ratchet Block Holding Power Quite simply, Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our sheave cross-hole geometry. The Series 40 delivers up to 14:1 holding power, almost double that of our nearest competititor. The unique sheave design has 8 gripping faces which directly resist loaded line movement. Traditional designs have an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load. Simple and Secure Attachment The Dyneema® Link is easily fitted and is retained securely by a moulded retainer clip. The flexible link can be left with one end attached to the block when fitting - no more lost shackle pins. The system is compatible with Dyneema®/Spectra® strops, webbing and carbon connection points - much more so than steel loop tops or shackles. Smooth Easing of Sheets With auto models the sheet runs out smoothly and freely as soon as the ratchet mechanism disengages. Low Profile Stand-Up Kit Allows 0™ or 90™ Alignment Stand-up kits feature a clatter-free rubber boot. You can attach the Dyneema® link so that the block is aligned with the stand-up base or across it. It's a neat low-profile solution which allows full articulation. Features: Up to 14:1 holding power - highest available! Smooth easing of sheets Fully Automatic load sensing ratchet engagemen Swivel shackle head for unlmited block rotation Stainless steel shackle head for ultimate durability and compatibility with harsh fixing points Applications: Dinghy mainsheet systems Mainsheet fine tune systems on sportsboats & small keel boats Mainsheet systems on sportsboats using RF7 mainsheet swivel cleat unit Spinnaker and job sheets on dinghies - especially modern asymmetric classes Control line applications on larger yachts Materials: Sheave: Hard anodised Aluminium Ball Bearings: High compression strength carbon black Acetal Frame/Cheeks: Toughened, glass fiber reinforced Nylon Rope Link: UV stabilized, multi-strand impregnated SK75 Dyneema® Specifications: Sheave Ø: 40mm(1-9/16") Max. Rope Ø: 9mm(5/16") M.W.L.: 175kg(385lbs) B. L.: 500kg(1,100lbs) Weight: 44g(1.5oz)

Series 30 Ball Bearing Orbit Block™ - Single - Becket - Swivel Shackle Head Ball Bearing Orbit Blocks™ boast the highest strength-to-weight ratio available. This is achieved through all-composite reinforced polymer materials and multiple attachment options. Their precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fiber-reinforced composites in the block head, cleat arms and beckets. Features: Lightweight Highest working load in its class Secure, versatile and secure attachement Low profile and compact Ultra low profile thru-sheave becket Low friction 2-stage ball bearing system provides consistent performance over the full working load range Applications: Mainsheet systems and spinnaker sheets on dinghies to 5M(16') Halyard, vang and backstay applications on boats to 5M(16') Control line applications on larger yachts Materials: Sheave: High compression strength carbon black Acetal Ball Bearings: High compression strength Acetal Frame/Cheeks: Toughened, glass fiber reinforced Nylon Link: UV stabilized, multi-strand impregnated SK75 Dyneema® Specifications: Sheave Ø: 30mm(1-3/16") Max. Rope Ø: 8mm(5/16") M.W.L.: 300kg(660lbs) B. L.: 600kg(1,320lbs) Weight: 32g(1.1oz)

Series 55 Ratchet Orbit Block™ - Single - Swivel Head - Auto & Manual Automatic Ratchet Block Now you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong. Awesome Ratchet Block Holding Power Quite simply, Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our sheave cross-hole geometry. Its holding power is up to 21:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load. Features: Up to 20:1 holding power Smooth easing of sheets High performance cleating Swivel shackle head for unlimited block rotation. Stainless steel shackle head for ultimate durability and compatibility with harsh fixing points. Automatic & manual ratchet block Applications: Mainsheet systems and spinnaker sheets on dinghies, sportsboats and small keel boats to 8M(26') Halyard, vang and backstay applications on boats to 8M(26') Spinnaker sheets on sportsboats and small keel boats (lateral lead blocks) Materials: Sheave: Hard anodised Aluminium Ball Bearings: High compression strength carbon black Aceetal Frame/Cheeks: Toughened, glass fiber reinforced Nylon Rope Link: UV stabilized, multi-strand impregnated SK75 Dyneema® Head fitting: grade 316 stainless steel Specifications: Sheave Ø: 55mm(2") Max. Rope Ø: 10mm(1/2") M.W.L.: 250kg(550lbs) B. L.: 650kg(1,430lbs) Weight: 82g(2.9oz)

Series 30 Utility Block - Single, Becket, Swivel Shackle Head Features: Lightweight durable construction Economical Maintenance free Product Information: Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase. Applications: Vang, cunningham and trapeze retriever systems on dinghies Leech line tackles, bunk adjusters etc on larger yachts Materials: U.V. stabilized Acetal sheaves Grade 316 stainless steel cheeks

Series 30 Utility Ball Bearing Block - Single, Becket, Swivel Shackle Head Features: Low friction 2-stage ball bearing system provides consistent performance over the full working load range. High static and dynamic load capacity. Light weight Versatile head fittings Cheek cut-outs for easy bearing maintenance Product Information: Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range. Applications: Primary lead blocks on dinghies and catamarans Control lines on larger yachts Materials: U.V. stabilized Acetal sheaves Acetal ball bearings Impact modified, fiber reinforced and U.V. stabilized Nylon cheeks Grade 316 stainless steel load straps and head fittings

Series 55 BB Orbit Block, Double Becket Swivel Lightweight Kilogram for a kilogram of working load, BB and RT Orbit Blocks™ are the world’s lightest. The unique orbital design allows the bearing to only be in the active areas of the floating sheave. This minimizes the mass of the inactive return race and hub. Weight and bulk are further reduced in the different block configurations. The ball bearing single and becket block have a through-sheave becket arrangement. The result? The lowest weight is possible. Multi-sheave blocks have only single intermediate cheeks and an ultra-light and efficient head arrangement. This gives a 30% weight-saving advantage over the nearest competitor. Other brands just link together their single blocks. This results in unnecessary double cheeks between each sheave, held together by a heavy steel channel across the top of the block.  Highest working load in its class The orbital ball-bearing arrangement gives the largest possible bearing race diameter. This maximizes load performance. The proven Ronstan 2-stage bearing system features high compression grade acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range. The floating sheave and bearing system are supported by a fiber-reinforced load frame. The design was computer modeled to be stress optimized. The Dyneema® Link is produced from FSE Robline SK75 fiber, which is 10 times stronger and lighter than steel and provides the final connection from the block to the load point. Features: Ultra Lightweight Low friction 2-stage Orbital ball bearing system Highest working load in its class Low profile and compact High performance cleating Swivel shackle head for unlimited block rotation Stainless steel shackle head and compatibility with sharp fixing points Ultra low profile integrated beckets

Series 40 All Purpose Block - Single - Universal Head 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, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Features: Exceptionally high working loads Low maintenance, long service life Self-lubricating sheave Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26') Materials: U.V. stabilized Acetal sheaves Impact and U.V. resistant, fiber reinforced Nylon cheeks Grade 316 stainless steel bearing race Grade 316 stainless steel load strap and head fitting Specifications: Sheave Ø: 40mm(1-9/16") Max. Rope Ø: 10mm(7/16") Pin Ø: 5mm(3/16") M.W.L.: 400kg(880lbs) B. L.: 1,000kg(2,200lbs) Weight: 71g(2.5oz)

Series 40 All Purpose Block - Single - Becket - Universal Head 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, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Becket pin is removeable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools Features: Exceptionally high working loads Low maintenance, long service life Self-lubricating sheave Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Snap fit removable becket pin Spare parts - RF150 Shackle, RF41010 Replacement Becket Pin Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26') Materials: U.V. stabilized Acetal sheaves Impact and U.V. resistant, fiber reinforced Nylon cheeks Grade 316 stainless steel bearing race Grade 316 stainless steel load strap and head fitting Specifications: Sheave Ø: 40mm(1-9/16") Max. Rope Ø: 10mm(7/16") Pin Ø: 5mm(3/16") M.W.L.: 400kg(880lbs) B. L.: 1,000kg(2,200lbs) Weight: 80g(2.8oz)

Series 40 All Purpose Block - Triple - Becket - Swivel Head Features: Exceptionally high working loads Low maintenance, long service life Self-lubricating sheave Slotted pin shackle eliminates fouled lines Two way head post Snap fit removable becket pin 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, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.Becket pin is removable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools. Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft) Materials: U.V. stabilised Acetal sheaves Impact and U.V. resistant, fibre reinforced Nylon cheeks Grade 316 stainless steel bearing race Grade 316 stainless steel load strap and head fitting Sheave: UV stabilised acetal Cheeks: Impact modified, fiber reinforced and UV stabilized nylon

Series 40 High Load Block - Single Features: Exceptionally high working loads Lightweight Cheek cut-outs for easy bearing maintenance Suitable for both rope or wire Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Ideal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required Applications: Halyards Backstays Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft) Materials: Nylatron® sheave Grade 316 stainless steel load strap and head fitting Impact and U.V. resistant, fiber reinforced Nylon cheeks

Series 40 Ball Bearing Block - Single - Becket Features: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Snap fit removable becket pin Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Becket pin is removable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft) Materials: Acetal ball bearings UV stabilized Acetal sheave Grade 316 stainless steel load strap and head fitting Impact and UV resistant, fiber reinforced Nylon cheeks

Series 40 Ball Bearing Block - Single - Universal Head Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Features: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26') Materials: U.V. Stabilized Acetal sheaves Acetal ball bearings Impact and U.V. resistant, fiber reinforced Nylon cheeks Grade 316 stainless steel load strap and head fitting Specifications: Sheave Ø: 40mm(1-9/16") Max. Rope Ø: 10mm(7/16") Pin Ø: 5mm(3/16") M.W.L.: 350kg(770lbs) B. L.: 1,000kg(2,200lbs) Weight: 70g(2.5oz)

Series 40 Ball Bearing Block - Double - Becket - Swivel Head Features: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Features a swivel shackle head for full 360° rotation. Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)

Series 40 Ball Bearing Block - Triple - Becket - Swivel Head Features: Low friction Acetal or Torlon® bearing system Lightweight Cheek cut-outs for easy bearing maintenance Features a swivel shackle head for full 360° rotation Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range. Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)

Series 40 All Purpose Block - Single - Stand Up 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, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Features: Exceptionally high working loads Low maintenance, long service life Self-lubricating sheave Captive Lock™ universal head Mount with 2 x 5mm (3/16") fasteners (not supplied) Applications: Mainsheet Halyard Vang Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26') Materials: U.V. stabilized Acetal sheaves Impact and U.V. resistant, fiber reinforced Nylon cheeks Grade 316 stainless steel bearing race Grade 316 stainless steel load strap and head fitting Specifications: Sheave Ø: 40mm(1-9/16") Max. Rope Ø: 10mm(7/16") M.W.L.: 400kg(880lbs) B. L.: 800kg(1,760lbs) Weight: 72g(2.5oz)