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Sailing - Blocks

High-performance sailing blocks designed for smooth and efficient line handling. Choose from various sizes and configurations to optimize your rigging system.

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  • Harken 45mm Triple Element Block w/Swivel [6240]
    Harken
    Harken 45mm Triple Element Block w/Swivel [6240]
    45mm Triple Element Block with SwivelElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount of metal required to protect the sheave with a proven journal bearing. So...
    $135.45
    $0.00
    $135.45
  • Harken 45mm Single Element Block w/Swivel Becket [6231]
    Harken
    Harken 45mm Single Element Block w/Swivel Becket [6231]
    45mm Single Element Block with Swivel & BecketElement blocks introduce sideplates that combine forged aluminum and compound curves for strength. They are simultaneously contemporary and very robust. Element’s design pairs the minimum amount of metal required to protect the sheave with a proven journal...
    $61.05
    $0.00
    $61.05
  • Schaefer Stand-Up Swivel - Aluminum Block [704-62]
    Schaefer Marine
    Schaefer Stand-Up Swivel - Aluminum Block [704-62]
    Stand-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...
    $213.99
    $213.99
  • Schaefer Spring Loaded/Lined Slide/Aluminum f/1" T-Track [504-82]
    Schaefer Marine
    Schaefer Spring Loaded/Lined Slide/Aluminum f/1" T-Track [504-82]
    Spring 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. Specifications: Track Size 1" x 1/8" (25 mm x 3 mm) Max....
    $205.99
    $205.99
  • Schaefer Twin Sheet Block f/1-1/4" T-Track - Black [32-97]
    Schaefer Marine
    Schaefer Twin Sheet Block f/1-1/4" T-Track - Black [32-97]
    Twin 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 proper lead. Pin stop makes adjustment simple. Specifications: Track Size...
    $395.99
    $395.99
  • Ronstan Series 30 Utility Ball Bearing Block - Single, Swivel Shackle Head [RF30100]
    Ronstan
    Ronstan Series 30 Utility Ball Bearing Block - Single, Swivel Shackle Head [RF30100]
    Series 30 Utility Ball Bearing Block - Single, Swivel Shackle HeadFeatures: 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 Product Information:Sheaves running on Acetal or Torlon®...
    $31.87
    $31.87
  • Ronstan Series 30 Utility Block - Single, Becket, Loop Head [RF681]
    Ronstan
    Ronstan Series 30 Utility Block - Single, Becket, Loop Head [RF681]
    Series 30 Utility Block - Single, Becket, Loop HeadFeatures: 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...
    $19.09
    $19.09
  • Ronstan Series 30 Utility Block - Double, Tube Rivet [RF417]
    Ronstan
    Ronstan Series 30 Utility Block - Double, Tube Rivet [RF417]
    Series 30 Utility Block- Double, Tube RivetFeatures: 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 accept fixing screws, shackles or can be used as a becket for extra purchase.Applications:...
    $23.46
    $23.46
  • Ronstan Series 15 Ball Bearing Utility Block - Single Block, Loop Head [RF15101]
    Ronstan
    Ronstan Series 15 Ball Bearing Utility Block - Single Block, Loop Head [RF15101]
    Series 15 Ball Bearing Utility Block - Single Block, Loop HeadFeatures: Smallest and lightest ball bearing block available Precision molded acetal sheave running on stainless steel ball bearings provide high performance & low friction Single loop head blocks include an O-ring to separate running...
    $13.11
    $13.11
  • Ronstan Series 15 Ball Bearing Utility Block - Pivoting Lead Block [RF15174]
    Ronstan
    Ronstan Series 15 Ball Bearing Utility Block - Pivoting Lead Block [RF15174]
    Series 15 Ball Bearing Utility Block - Pivoting Lead BlockFeatures: Smallest and lightest ball bearing block available Precision molded acetal sheave running on stainless steel ball bearings provide high performance & low friction Single loop head blocks include an O-ring to separate running line...
    $39.55
    $39.55
  • Ronstan Series 40 All Purpose Block - Fiddle - Becket - Cleat [RF41530]
    Ronstan
    Ronstan Series 40 All Purpose Block - Fiddle - Becket - Cleat [RF41530]
    Series 40 All Purpose Block - Fiddle - Becket - CleatFeatures: 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 Multi-position cleat arm Spare parts - RF41010...
    $113.36
    $113.36
  • Ronstan Series 40 Ball Bearing Block - Double - Swivel Head [RF40200]
    Ronstan
    Ronstan Series 40 Ball Bearing Block - Double - Swivel Head [RF40200]
    Series 40 Ball Bearing Block - Double - Swivel HeadFeatures: 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...
    $73.20
    $73.20
  • Ronstan Series 50 All Purpose Block - Fiddle - Becket - Cleat [RF51530]
    Ronstan
    Ronstan Series 50 All Purpose Block - Fiddle - Becket - Cleat [RF51530]
    Series 50 All Purpose Block - Fiddle - Becket - CleatFeatures Exceptionally high working loads Low maintenance, long service life Self-lubricating Acetal polymer sheave ensures low friction and extreme durability Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Snap fit removable becket...
    $133.70
    $133.70
  • Ronstan Series 50 All Purpose Block - Double [RF51200]
    Ronstan
    Ronstan Series 50 All Purpose Block - Double [RF51200]
    Series 50 All Purpose Block - DoubleAll 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...
    $77.08
    $77.08
  • Ronstan Series 55 Ratchet Mount Orbit Block - Fiddle Becket Swivel [RF56510]
    Ronstan
    Ronstan Series 55 Ratchet Mount Orbit Block - Fiddle Becket Swivel [RF56510]
    Series 55 Ratchet Mount Orbit Block - Fiddle Becket SwivelFeatures: Up to 20:1 holding power Smooth easing of sheets High performance cleating Automatic ratchet blockNow you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company...
    $97.95
    $97.95
  • Ronstan Series 50 All Purpose Block - Fiddle - Becket [RF51510]
    Ronstan
    Ronstan Series 50 All Purpose Block - Fiddle - Becket [RF51510]
    Series 50 All Purpose Block - Fiddle - BecketFeatures: Exceptionally high working loads Low maintenance, long service life Self-lubricating Acetal polymer sheave ensures low friction and extreme durability Captive Lock™ universal head Slotted pin shackle eliminates fouled lines Snap fit removable becket pin Spare...
    $74.39
    $74.39
  • Ronstan Series 40 Ball Bearing Block - Fiddle - Becket - Cleat [RF40530]
    Ronstan
    Ronstan Series 40 Ball Bearing Block - Fiddle - Becket - Cleat [RF40530]
    Series 40 Ball Bearing Block - Fiddle - Becket - CleatFeatures: 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 Multi-position cleat arm Low...
    $100.37
    $100.37
  • Ronstan Series 40 Ball Bearing Orbit Block - Cheek [RF45151]
    Ronstan
    Ronstan Series 40 Ball Bearing Orbit Block - Cheek [RF45151]
    Series 40 Ball Bearing Orbit Block - CheekFeatures: Ultra Lightweight Low friction 2-stage Orbital ball bearing system Highest working load in its class Low profile and compact High performance cleating Base suits curved mounting surface Low mounting points for maximum strength LightweightKilogram for kilogram...
    $33.05
    $33.05
  • Ronstan Series 50 All Purpose Block - Triple [RF51300]
    Ronstan
    Ronstan Series 50 All Purpose Block - Triple [RF51300]
    Series 50 All Purpose Block - TripleFeatures: Exceptionally high working loads Low maintenance, long service life Self-lubricating Acetal polymer sheave ensures low friction and extreme durability Slotted pin shackle eliminates fouled lines Lockable swiveling head post Snap fit removable becket pin All purpose (AP) blocks...
    $109.39
    $109.39
  • Ronstan Series 40 Ball Bearing Block - Single Upright Lead [RF40171]
    Ronstan
    Ronstan Series 40 Ball Bearing Block - Single Upright Lead [RF40171]
    Series 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 high performance & low...
    $55.79
    $55.79

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