Blocks
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Ronstan
Ronstan Series 40 Ball Bearing Block - Double - Swivel Head [RF40200]
$79.63$67.69Series 40 Ball Bearing Block - Double - Swivel HeadFeatures:Low friction Acetal or Torlon® bearing systemLightweightCheek cut-outs for easy bearing maintenanceFeatures a swivel shackle head for full 360° rotationSheaves running on Acetal or...$79.63$67.69 -
Ronstan
Ronstan Series 40 Ball Bearing Block - Fiddle - Becket - Cleat [RF40530]
$109.18$92.80Series 40 Ball Bearing Block - Fiddle - Becket - CleatFeatures:Low friction Acetal or Torlon® bearing systemLightweightCheek cut-outs for easy bearing maintenanceCaptive Lock™ universal headSlotted pin shackle eliminates fouled linesSnap fit...$109.18$92.80 -
Ronstan
Ronstan Series 40 Ball Bearing Block - Single - Universal Head [RF40100]
$35.31$30.01Series 40 Ball Bearing Block - Single - Universal HeadSheaves 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...$35.31$30.01 -
Ronstan
Ronstan Series 40 Ball Bearing Block - Single Upright Lead [RF40171]
$60.68$51.58Series 40 Ball Bearing Block - Single Upright LeadLead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Precision molded Acetal sheaves running on Acetal or Torlon® ball bearings provide...$60.68$51.58 -
Ronstan
Ronstan Series 40 Ball Bearing Orbit Block - Cheek [RF45151]
$35.95$30.56Series 40 Ball Bearing Orbit Block - CheekFeatures:Ultra LightweightLow friction 2-stage Orbital ball bearing systemHighest working load in its classLow profile and compactHigh performance cleatingBase suits curved mounting surfaceLow mounting points...$35.95$30.56 -
Ronstan
Ronstan Series 40 Ball Bearing Orbit Block - Single - Becket - Cleat - Swivel Head [RF45130]
$107.90$91.72Series 40 Ball Bearing Orbit Block - Single - Becket - Cleat - Swivel HeadFeatures:Ultra LightweightLow friction 2-stage Orbital ball bearing systemHighest working load in its classLow profile and compactHigh performance cleatingLightweightKilogram for...$107.90$91.72 -
Ronstan
Ronstan Series 40 Ball Bearing Orbit Block - Single - Becket - Swivel Head [RF45110]
$35.95$30.56Series 40 Ball Bearing Orbit Block - Single - Becket - Swivel HeadCore Blocks are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing...$35.95$30.56 -
Ronstan
Ronstan Series 40 Orbit BB Double Block w/Becket Swivel Shackle [RF48210]
$106.00$90.10Series 40 Orbit BB Double Block with Becket & Swivel ShackleThe Series 40 ball-bearing Orbit Blocks™ provides the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest...$106.00$90.10 -
Ronstan
Ronstan Series 40 Orbit BB Quad Block w/Swivel Shackle [RF48400]
$192.60$163.71Series 40 Orbit BB Quad Block with Swivel ShackleThe Series 40 ball-bearing Orbit Blocks™ provides the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest available in...$192.60$163.71 -
Ronstan
Ronstan Series 40 Orbit BB Quin Block w/Swivel Shackle [RF48500]
$219.40$186.49Series 40 Orbit BB Quin Block with Swivel ShackleThe Series 40 ball-bearing Orbit Blocks™ provides the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest available in...$219.40$186.49 -
Ronstan
Ronstan Series 40 Orbit RT Block w/Quin, Becket, Cleat Swivel [RF46530]
$619.00$526.15Series 40 Orbit RT Block with Quin, Becket, Cleat & SwivelThe Series 40 ball-bearing Orbit Blocks™ provides the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest...$619.00$526.15 -
Ronstan
Ronstan Series 40 Orbit Single BB Single Stand-Up Block [RF48140]
$54.00$45.90Series 40 Orbit Single BB Single Stand-Up BlockThe Series 40 ball-bearing Orbit Blocks™ provides the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest available in this...$54.00$45.90 -
Ronstan
Ronstan Series 40 Ratchet Orbit Block - Single - Auto - Swivel Shackle Head [RF46100]
$79.00$67.15Series 40 Ratchet Orbit Block - Single - Auto - Swivel Shackle HeadAutomatic RatchetWith 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...$79.00$67.15 -
Ronstan
Ronstan Series 50 All Purpose Block - Single - Universal Head [RF51100]
$38.95$33.11Series 50 All Purpose Block - Single - Universal HeadAll 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...$38.95$33.11 -
Ronstan
Ronstan Series 55 Ball Bearing Orbit Block - Single - Becket - Swivel Head [RF55110]
$53.95$45.85Series 55 Ball Bearing Orbit Block - Single - Becket - Swivel HeadLightweightKilogram for 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...$53.95$45.85 -
Schaefer Marine
Schaefer Clamp-On Furling Line Stanchion Lead Block - 1" Ball Bearing [300-34]
$81.99Clamp-On Furling Line Stanchion Lead Block - 1" Ball BearingDelrin™ ball bearing sheave allows for quick and easy furling line adjustment. Stainless steel cage and strap ensure durability. Specifications:Stanchions 1" (25mm) in...$81.99 -
Schaefer Marine
Schaefer Clear Step Lead Block f/1" Stanchions [506-44]
$92.55$90.99Clear Step Lead Block for 1" StanchionsUnique design leads your furling control line outside of your stanchions for a clean lead aft to the cockpit. Stainless cheeks with Delrin(tm) ball bearing sheave ensure low-friction and high strength. Locks in...$92.55$90.99 -
Schaefer Marine
Schaefer Pulpit Furling Lead Spring Loaded Block - 1" Ball Bearing [300-35]
$163.75$148.99Pulpit Furling Lead Spring Loaded Block - 1" Ball BearingThe Stainless Steel spring guarantees maximum support for the block. Delrin™ ball bearing sheave ensures low-friction lead for your furling line. Specifications:1" (25mm)...$163.75$148.99 -
Schaefer Marine
Schaefer Series 3 Flat Base/Alum Cheek/Delrin Sheave [303-09]
$80.99Series 3 Flat Base/Alum Cheek/Delrin SheaveDelrin™ plain bearing sheave ensures smooth operation and high safe working load. Stainless Steel base distributes loads to a larger surface area.Specifications:Sheave Dia. 1-7/16" (37 mm)Max Line 7/16"...$80.99 -
Schaefer Marine
Schaefer Series 5 Flat Base Cheek Block - Stainless Steel Cheeks [505-11]
$111.70$107.99Series 5 Flat Base Cheek Block - Stainless Steel CheeksSeries 5 Cheek Block with Stainless Steel cheek. Delrin™ sheave ensures smooth operation and high safe working load. Stainless steel base distributes loads to a large surface area...$111.70$107.99 -
Schaefer Marine
Schaefer Series 5 Flat Base/Alum Cheek/Delrin Sheave [504-11]
$98.90$96.99Series 5 Flat Base/Alum Cheek/Delrin SheaveDelrin™ sheave ensures smooth operation and high safe working load. Stainless steel base distributes loads to a large surface area. Specifications:Sheave Diameter 2" (51 mm)Max. Line 7/16" (11...$98.90$96.99 -
Schaefer Marine
Schaefer Series 7 Flat Base/Aluminum Cheek/Delrin Sheave [704-11]
$142.25$134.99Series 7 Flat Base/Aluminum Cheek/Delrin SheaveDelrin™ sheave ensures smooth operation and high safe working load. Stainless steel base distributes loads to a large surface area. Specifications:Sheave Dia. 2-3/8" (60 mm)Max. Line 1/2" (13...$142.25$134.99 -
Schaefer Marine
Schaefer Series 7 Stand Up Ball Bearing Swivel Block - 2-3/8" 60mm [706-62]
$257.95$227.99Series 7 Stand Up Ball Bearing Swivel Block - 2-3/8" 60mmSingle stand up ball bearing block. Stand up spring keeps block upright when not in use. Stainless steel base spreads load out and may be used with 97-49 backing plate. (sold separately)...$257.95$227.99 -
Schaefer Marine
Schaefer Single Aluminum Block [504-05]
$82.99Single Aluminum Block - 51mm SheaveSingle block with anodized aluminum cheeks. Delrin™ sheave ensures smooth operation with high safe working load. Swivel head may be locked in place to avoid twist. Specifications:Sheave Dia. 2"...$82.99 -
Schaefer Marine
Schaefer Single Aluminum Block [704-05]
$125.60$119.99Single Aluminum Block - 60mm SheaveDelrin™ sheave ensures smooth operation and a high safe working load. Swivel head may be locked in place to eliminate twisting. Specifications:Sheave Diameter 2 3/8" (60mm)Thickness 1 3/32" (28mm)Width 2...$125.60$119.99 -
Schaefer Marine
Schaefer Single Ball Bearing Block [506-05]
$115.25$110.99Single Ball Bearing BlockSingle block with aluminum cheeks and ball bearing sheave. Delrin™ ball bearing sheave ensures low-friction operation. Swivel head may be locked in place to avoid twist. Specifications:Sheave Diameter 2"...$115.25$110.99 -
Schaefer Marine
Schaefer Single Stainless Steel Block [505-05]
$96.30$94.99Single Stainless Steel Block - 51mm SheaveSingle block with stainless steel cheeks. Delrin™ sheave ensures smooth operation and high safe working load. Specifications:Sheave Dia. 2" (51mm)Thickness 15/16" (24mm)Width 2 1/8" (54mm)Length 4...$96.30$94.99 -
Schaefer Marine
Schaefer Single Stainless Steel Block [705-05]
$163.75$148.99Single Stainless Steel Block - 60mm SheaveDelrin™ sheave ensures low-friction and high safe working load. Swivel head may be locked in place to eliminate line twist. Specifications:Sheave Dia. 2 3/8" (60mm)Thickness 1 3/32" (28mm)Width 2 1/2"...$163.75$148.99 -
Schaefer Marine
Schaefer Spring Loaded/Lined Slide/Aluminum f/1" T-Track [504-82]
$239.55$212.99Spring Loaded/Lined Slide/Aluminum for 1" T-TrackDelrin™ sheave ensures smooth operation and high safe working load. Anodized aluminum cheeks and stainless steel slider ensure reliability. Polyethylene liner and pin stop allow for easy adjustment...$239.55$212.99 -
Schaefer Marine
Schaefer Spring Loaded/Lined Slide/Stainless Steel f/1-1/4" T-Track [705-92]
$348.55$271.99Spring Loaded/Lined Slide/Stainless Steel for 1-1/4" T-TrackDelrin™ sheave ensures smooth operation and high safe working load. Stainless Steel cheeks and stainless steel slider ensure reliability. Polyethylene liner and pin stop allow for easy...$348.55$271.99 -
Schaefer Marine
Schaefer Stand-Up Swivel - Aluminum Block [704-62]
$248.75$219.99Stand-Up Swivel - Aluminum BlockSpecifications:Sheave Dia. 2-2/8" (60 mm)Max Line 1/2" (13 mm)Diameter includes urethane base 3-3/8" (86 mm)Height 4-25/32" (120 mm)H2 2-15/32" (63 mm)Fastener Size (4),1/4" RH (6 mm)C/C 1-11/16" (43 mm)SWL 2250 lbs (1020...$248.75$219.99 -
Schaefer Marine
Schaefer Stand-Up Swivel w/Aluminum Cheeks [504-62]
$206.70$184.99Stand-Up Swivel with Aluminum CheeksDelrin™ sheave ensures smooth operation and high safe working load. Specifications:Sheave Dia. 2" (51 mm)Max Line 7/16" (11 mm)Diameter includes urethane base 2-7/8" (73 mm)Height 4-1/32" (103 mm)H2 2-3/32"...$206.70$184.99 -
Schaefer Marine
Schaefer Twin Sheet Block f/1-1/4" T-Track - Black [32-97]
$460.95$355.99Twin Sheet Block for 1-1/4" T-Track - BlackHardcoat anodized aluminum body and slider provide a high strength block. Aluminum sheave runs on nomex™/Teflon™ bearing for a low-friction, high strength sheave. Articulating sheave allows for a...$460.95$355.99 -
Schaefer Marine
Schaefer Twin Sheet Lead 25x3MM - Black [32-77]
$361.90$281.99Twin Sheet Lead 25x3MM - Black32-77 Twin Sheet Lead block. The anodized aluminum body is machined from 6061-T6 aluminum and articulates to ensure a proper lead. Anodized aluminum sheave runs on Nomex™/Teflon™ bearing for a low-friction high...$361.90$281.99 -
SeaSure
SeaSure 1" Bolt Down Block [00.01CRD]
$24.991" Bolt Down BlockThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light...$24.99 -
SeaSure
SeaSure 25mm Double Block w/Becket [00.23CRD]
$48.9925mm Double Block with BecketThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and...$48.99 -
SeaSure
SeaSure 25mm Double Block w/Shackle [00.21CRD]
$41.9925mm Double Block with ShackleThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and...$41.99 -
SeaSure
SeaSure 25mm Double Block w/V-Jam [00.25CRD]
$55.9925mm Double Block with V-JamThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and...$55.99 -
SeaSure
SeaSure 25mm Halyard Block [00.03CRD]
$23.9925mm Halyard BlockThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light...$23.99 -
SeaSure
SeaSure 25mm Shouldered Block [00.05CRD]
$23.9925mm Shouldered BlockThe 25mm plain bearing block range is one of SeaSure's oldest and best-selling ranges. The range uses marine-grade stainless steel side plates and rivets with an arnite (plastic) sheave, which is incredibly hard-wearing and light...$23.99