Showing all 5 results

Ronstan Series 20 Ball Bearing Block – Double – 2-Axis Shackle Head

$34.57
Series 20 Ball Bearing Block - Double - 2-Axis Shackle Head

Features:
  • Low friction
  • High static and dynamic load capacity
  • Lightweight
  • Precision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction
  • Two-Way head can be fixed at 0° or 90°


Applications:
  • Dinghy control lines
  • Dinghy vangs
  • Cunninghams
  • Traveller controls


Materials:
  • Stainless steel ball bearings
  • UV Stabilized Acetal sheave
  • Grade 316 stainless steel load strap and head fitting
  • Impact and UV resistant, fiber reinforced Nylon cheeks


Specifications:
Sheave Ø: 20mm(3/4")
Max. Rope Ø: 6mm(1/4")
PinØ: 4mm(5/32")
M.W.L.: 350kg(770lbs)
B. L.: 700kg(1,540lbs)
Weight: 42g(1.5oz)

Ronstan Series 20 Ball Bearing Block – Single

$23.45
Series 20 Ball Bearing Block - Single

Features:
  • Low friction
  • High static and dynamic load capacity
  • Lightweight
  • Precision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction


Applications:
  • Dinghy control lines
  • Dinghy Vangs
  • Cunninghams
  • Traveller controls


Materials:
  • U.V. Stabilized Acetal sheaves
  • Stainless steel ball bearings
  • Grade 316 stainless steel load strap and head fitting
  • Impact and UV resistant, fiber reinforced Nylon cheeks


Specifications:
Sheave Ø: 20mm(3/4")
Max. Rope Ø: 6mm(1/4")
Pin Ø: 3mm(1/8")
M.W.L.: 250kg(550lbs)
B. L.: 550kg(1,210lbs)
Weight: 20g(0.7oz)

Ronstan Series 20 ball Bearing Block – Triple – 2-Axis Shackle head

$46.92
Series 20 Ball Bearing Block - Triple - 2-Axis Shackle Head

Features:
  • Low friction
  • High static and dynamic load capacity
  • Lightweight
  • Precision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction
  • Two-Way head can be fixed at 0° or 90°


Applications:
  • Dinghy control lines
  • Dinghy vangs
  • Cunninghams
  • Traveller controls


Materials:
  • Stainless steel ball bearings
  • UV Stabilized Acetal sheave
  • Grade 316 stainless steel load strap and head fitting
  • Impact and UV resistant, fiber reinforced Nylon cheeks


Specifications:
Sheave Ø: 20mm(3/4")
Max. Rope Ø: 6mm(1/4")
PinØ: 4mm(5/32")
M.W.L.: 400kg(880lbs)
B. L.: 850kg(1,870lbs)
Weight: 62g(2.2oz)

Ronstan Series 20 Ball Bearing Orbit Block – Single – Dyneema Lashing – Becket Option

$16.04
Series 20 Ball Bearing Orbit Block - Single - Dyneema Lashing - Becket Option

The incredible Series 20 Orbit Block™ is capable of loads up to 250kg (550lb) while weighing a mere 9 grams. It's so light that it needs to be lashed down!

Features:
  • Integrated stainless steel hub to accept lashing attachment and through-sheave becket
  • Suits up to 4mm(5/32") lashing
  • Includes 750mm (30") x 1.7mm(1/16") diam lashing


Applications:
  • Control lines on dinghies and catamarans to 5M(16')


Materials:
  • Sheave: High compression strength carbon acetal
  • Ball bearings: stainless steel
  • Frame/Cheeks: Nylon

Ronstan Series 30 Ball Bearing Orbit Block™ – Single – Becket – Swivel Shackle Head

$24.69
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)