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Beacon Marine Electronics
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Categories
  • Admin
    • Admin/Printed
  • Anchoring & Docking
    • Anchoring Accessories
    • Anchors
    • Bumpers/Guards
    • Buoys
    • Cleats
    • Dock Line
    • Docking Accessories
    • Fender Accessories
    • Fender Covers
    • Fenders
    • Ladders
    • Mooring Whips
    • Piling Caps
    • Rope & Chain
    • Windlass Accessories
    • Windlasses
  • Boat Outfitting
    • Accessories
    • Adhesive/Sealants
    • Anodes
    • Antifouling Systems
    • Biminis/Shades/Umbrellas
    • Bottom Paint
    • Bow Thrusters
    • Cleaning
    • Deck / Galley
    • Display Mounts
    • Docking Accessories
    • Downrigger Accessories
    • Engine Controls
    • Fuel Systems
    • Gauge Accessories
    • Gauges
    • Hatch Lifts
    • Horns
    • Hull Protection
    • Jack Plates
    • Mirrors
    • Non-Skid Paint
    • Propeller
    • Radar/TV Mounts
    • Rod Holders
    • Seating
    • Security Systems
    • Shore Power
    • Steering Systems
    • Tools
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    • Trim Tabs
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    • Underwater Cameras
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    • Furuno
    • Garmin BlueChart
    • Garmin BlueChart Foreign
    • Garmin BlueChart Vision
    • Garmin BlueChart Vision Foreign
    • Garmin Inland Lakes
    • Garmin Navionics Vision+
    • Garmin Navionics Vision+ - Foreign
    • Garmin Navionics+
    • Garmin Navionics+ Foreign
    • Garmin Standard Mapping
    • Garmin Street Navigation
    • Garmin Topographical
    • Humminbird
    • Navionics +
    • Navionics + ROW
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    • Nobeltec
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  • Communication
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    • Mobile Broadband
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  • Electrical
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    • Ignition Coils
    • Sensors
    • Solenoids
    • Starters
    • Tune Up Kits
  • Entertainment
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    • Stereo Remotes
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  • Lighting
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    • Light Bars
    • Navigation Lights
    • Pods & Cubes
    • Search Lights
    • Underwater Lighting
  • Marine Hardware
    • Accessories
    • Anchor Rollers
    • Bimini Top Fittings
    • Bow & Stern Eyes
    • Chocks
    • Cleats
    • Deck Fills
    • Deck Plates
    • Engine Mounts
    • Gas Springs
    • Grab Handles
    • Hatches
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    • Marine Lumber
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    • Pedestals
    • Rail Fittings
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  • Marine Plumbing & Ventilation
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    • Air Conditioning
    • Ballast Pumps
    • Bilge Pumps
    • Blowers & Heaters
    • Engine Cooling Pumps
    • Fans
    • Fittings
    • Hose
    • Hot Water Heaters
    • Impellers
    • Livewell Pumps
    • Marine Sanitation
    • Monitoring System
    • Portable Toilets
    • Strainers & Baskets
    • Thru-Hull Fittings
    • Tools
    • Transfer Pumps
    • Washdown / Pressure Pumps
  • Marine Safety
    • Accessories
    • EPIRBs
    • Fire Suppression
    • Flotation Coats/Pants
    • Fume Detectors
    • Immersion/Dry/Work Suits
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    • Man Overboard Devices
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    • Custom Installations
    • Electrical and Mechanical Troubleshooting
    • Entertainment Systems
    • Factory Trained Technicians
    • FCC Licensed w/ Radar Endorsement
    • General Boat Maintenance
    • Generators & Alternate Energy Sources
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  4. Ronstan Series 55 Ball Bearing Orbit Block - Single - Becket - Swivel Head [RF55110]
Categories
  • Admin
    • Admin/Printed
  • Anchoring & Docking
    • Anchoring Accessories
    • Anchors
    • Bumpers/Guards
    • Buoys
    • Cleats
    • Dock Line
    • Docking Accessories
    • Fender Accessories
    • Fender Covers
    • Fenders
    • Ladders
    • Mooring Whips
    • Piling Caps
    • Rope & Chain
    • Windlass Accessories
    • Windlasses
  • Boat Outfitting
    • Accessories
    • Adhesive/Sealants
    • Anodes
    • Antifouling Systems
    • Biminis/Shades/Umbrellas
    • Bottom Paint
    • Bow Thrusters
    • Cleaning
    • Deck / Galley
    • Display Mounts
    • Docking Accessories
    • Downrigger Accessories
    • Engine Controls
    • Fuel Systems
    • Gauge Accessories
    • Gauges
    • Hatch Lifts
    • Horns
    • Hull Protection
    • Jack Plates
    • Mirrors
    • Non-Skid Paint
    • Propeller
    • Radar/TV Mounts
    • Rod Holders
    • Seating
    • Security Systems
    • Shore Power
    • Steering Systems
    • Tools
    • Trim Tab Accessories
    • Trim Tabs
    • Trolling Motor Accessories
    • Trolling Motors
    • Underwater Cameras
    • Windshield Wipers
    • Winter Covers
  • Cartography
    • C-Map 4D
    • C-Map Discover
    • C-Map Discover x / Reveal X
    • C-Map Max
    • C-Map Max Foreign
    • C-Map Reveal
    • CMOR Mapping
    • Furuno
    • Garmin BlueChart
    • Garmin BlueChart Foreign
    • Garmin BlueChart Vision
    • Garmin BlueChart Vision Foreign
    • Garmin Inland Lakes
    • Garmin Navionics Vision+
    • Garmin Navionics Vision+ - Foreign
    • Garmin Navionics+
    • Garmin Navionics+ Foreign
    • Garmin Standard Mapping
    • Garmin Street Navigation
    • Garmin Topographical
    • Humminbird
    • Navionics +
    • Navionics + ROW
    • Navionics Platinum Plus
    • Navionics Platinum Plus Foreign
    • Nobeltec
    • Raymarine
  • Communication
    • Accessories
    • Antenna Mounts & Accessories
    • Antennas
    • CB Radios
    • Cellular Amplifiers
    • Hailer Horns
    • Loud Hailers
    • Mobile Broadband
    • Satellite Telephone
    • Single Side Band
    • VHF - Fixed Mount
    • VHF - Handheld
  • Electrical
    • Accessories
    • Alternators
    • Batteries
    • Battery Chargers
    • Battery Isolators
    • Battery Management
    • Busbars, Connectors & Insulators
    • Charger/Inverter Combos
    • Circuit Breakers
    • DC to DC Converters
    • Electrical Panels
    • Fuse Blocks & Fuses
    • Inverters
    • Meters & Monitoring
    • Shore Power
    • Solar Panels
    • Switches & Accessories
    • Terminals
    • Tools
    • Wire
    • Wire Management
  • Engine Parts & Service
    • Accessories
    • Alternators
    • Distributor Caps
    • Engine Controls
    • Exhaust Hose
    • Fuel Hose & Fittings
    • Fuel Pumps
    • Fuel Tanks
    • Fuel Treatments
    • Ignition Coils
    • Sensors
    • Solenoids
    • Starters
    • Tune Up Kits
  • Entertainment
    • Accessories
    • Amplifiers
    • DVD Players
    • Over-The-Air TV Antennas
    • Satellite Receivers
    • Satellite TV Antennas
    • Speakers
    • Speakers - Home & Outdoor
    • Speakers - Tower/Soundbars
    • Stereo Remotes
    • Stereos
    • Subwoofers
    • Televisions
  • Lighting
    • Accessories
    • Bulbs
    • Dome/Down Lights
    • Flood/Spreader Lights
    • Interior / Courtesy Light
    • Light Bars
    • Navigation Lights
    • Pods & Cubes
    • Search Lights
    • Underwater Lighting
  • Marine Hardware
    • Accessories
    • Anchor Rollers
    • Bimini Top Fittings
    • Bow & Stern Eyes
    • Chocks
    • Cleats
    • Deck Fills
    • Deck Plates
    • Engine Mounts
    • Gas Springs
    • Grab Handles
    • Hatches
    • Hinges
    • Hooks & Clamps
    • Latches
    • Marine Lumber
    • Oarlocks
    • Pedestals
    • Rail Fittings
    • Rope & Chain Pipe
    • Rub Rail
    • Shaft Couplers
    • Shaft Seals
    • Ski Tows
    • Steering Wheels
    • Swim Platforms
    • Teak
    • Teak Lumber
    • Vents
  • Marine Navigation & Instruments
    • Accessories
    • AIS Systems
    • Autopilots
    • Black Box Modules
    • Cameras & Night Vision
    • Cameras - Network Video
    • Clocks & Barometers
    • Compasses
    • Fishfinder Only
    • Gauge Accessories
    • Gauges
    • GPS - Chartplotters
    • GPS - Fishfinder Combos
    • GPS - Track Plotter
    • GPS Only
    • Ice Flashers
    • Instruments
    • Marine Monitors
    • Network Cables & Modules
    • NMEA Cables & Sensors
    • Radars
    • Sounder/Sonar Modules
    • Transducer Accessories
    • Transducers
  • Marine Plumbing & Ventilation
    • Accessories
    • Air Conditioning
    • Ballast Pumps
    • Bilge Pumps
    • Blowers & Heaters
    • Engine Cooling Pumps
    • Fans
    • Fittings
    • Hose
    • Hot Water Heaters
    • Impellers
    • Livewell Pumps
    • Marine Sanitation
    • Monitoring System
    • Portable Toilets
    • Strainers & Baskets
    • Thru-Hull Fittings
    • Tools
    • Transfer Pumps
    • Washdown / Pressure Pumps
  • Marine Safety
    • Accessories
    • EPIRBs
    • Fire Suppression
    • Flotation Coats/Pants
    • Fume Detectors
    • Immersion/Dry/Work Suits
    • Lightning Detectors
    • Man Overboard Devices
    • Medical Kits
    • Personal Flotation Devices
    • Personal Locator Beacons
    • Safety Lights
    • Service
    • Waterproof Bags & Cases
  • Sailing
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    • Apparel
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    • Rope
    • Shackles/Rings/Pins
    • Winches
  • Services
    • ABYC Members
    • AC/DC Electrical Distribution
    • Autopilots
    • Charging/Inverter/Battery Systems
    • Compass Repair and Calibration
    • Computer Integration
    • Consultations and Layouts
    • Corrosion Prevention
    • Corrosion Surveys
    • Custom Installations
    • Electrical and Mechanical Troubleshooting
    • Entertainment Systems
    • Factory Trained Technicians
    • FCC Licensed w/ Radar Endorsement
    • General Boat Maintenance
    • Generators & Alternate Energy Sources
    • GPS/Charting/Navigation
    • Hydraulics
    • NMEA Members
    • Radar
    • Satellite TV/Radio/Communication/Weather/Internet
    • Sonar
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    • Surveillance, Tracking and Alarm Systems
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Ronstan Series 55 Ball Bearing Orbit Block - Single - Becket - Swivel Head [RF55110]
  • Ronstan Series 55 Ball Bearing Orbit Block - Single - Becket - Swivel Head [RF55110]

Ronstan Series 55 Ball Bearing Orbit Block - Single - Becket - Swivel Head [RF55110]

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Ronstan Series 55 Ball Bearing Orbit Block - Single - Becket - Swivel Head [RF55110]
Ronstan
Ronstan Series 55 Ball Bearing Orbit Block - Single - Becket - Swivel Head [RF55110]

MSRP: $58.34
Was:
Now: $49.59
(You save $8.75 )
Brand
Ronstan
SKU:
CWR-55256
UPC:
9316800440405
MPN:
RF55110

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Series 55 Ball Bearing Orbit Block™ - Single - Becket - Swivel Head

Lightweight
Kilogram 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 of the floating sheave. This minimises 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 has a through-sheave becket arrangement. The result? The lowest weight 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 maximises 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 is supported by a fiber-reinforced load frame. The design was computer modelled to be stress optimised. 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 for ultimate durability and compatibility with harsh fixing points
  • Ultra low profile integrated becket


Applications:
  • Mainsheet systems on dinghies, sportsboats and small keelboats to 9M(30')
  • Spinnaker sheets on dinghies, sportsboats and small keel boats to 9M(30')
  • Halyard, Vang and Backstay application on boats to 8M(26')
  • Control line applications on larger yachts
  • Ideal use for mainsheet systems and spinnaker sheets on dinghies, sportsboats and small keel boats to 9M(30')
  • Also ideal with halyard, vang and backstay applications on boats to 8M(26')
  • Spinnaker sheets on sportsboats and small keel boats (lateral lead blocks)
  • Control line applications on larger yachts


Materials:
  • Ball bearings - High compression strength carbon black Acetal
  • Stage 2 bearing - Carbon fiber reinforced, PTFE impregnated Nylon
  • Frame/Cheeks - Toughened, glass fiber reinforced Nylon
  • Rope Link: UV stabilized, multi-strand impregmented SK75 Dyneema®
  • Sheave: Carbon fiber reinforced, PTFE impregnated Nylon
  • Head fitting: Grade 316 stainless steel.


Specifications:
Sheave Ø: 55mm(2-5/32")
Max. Rope Ø: 10mm(3/8")
M.W.L.: 500kg(1,100lbs)
B. L.: 1,000kg(2,200lbs)
Weight: 88g(3.1oz)

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  • Ronstan Orbit Blocks™

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