Ratchet Orbit Block, Auto & Manual, Single/Swivel Head

Model # 11075371 Mfg # RF56100
5 out of 5 Customer Rating
Advice & How-To
Orders placed by 3 PM EST typically ship the same day. Orders placed after this time will be processed the next business day.
Ratchet Orbit Block, Auto & Manual, Single/Swivel Head
Model # 11075371 Mfg # RF56100
5 out of 5 Customer Rating
Advice & How-To
Orders placed by 3 PM EST typically ship the same day. Orders placed after this time will be processed the next business day.
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Series 55 BB Ball Bearing Orbit Blocks™ are suitable for sheet applications on dinghies, sportboats and small one-design keel boats and for control lines on larger boats. They feature strong Dyneema® rope links which are lighter weight and more flexible than metal loop heads, and a precision 2-stage bearing system for better durability, lighter weight and low-friction performance.

Series 55 RT Ratchet Orbit Blocks™ feature 20:1 holding power and are the only ratchet blocks available that can be set in manual mode or full automatic engagement mode. Essential equipment on racing dinghies and sportboats, when you want the most holding power you can get.

  • Sheave: Carbon fiber reinforced, PTFE impregnated engineered nylon
  • Ball Bearings: High compression strength Carbon Black Acetal; Stage 2 Bearing: Glass-fiber-reinforced, MoS2 impregnated engineered nylon
  • Sheave Size: 2-5/32" (55mm)
  • Line Dia.: 3/8" (10mm) max.
  • Cheek Material/Finish: Toughened glass-fiber-reinforced nylon
  • Shackle/Strap Type: UV stabilized, multi-strand Dyneema rope link

Becket No Becket
Diameter 3/8 Inch or 10 mm
Direction Any
Integral Cleat No Integral Cleat
Mount Type Swivel Shackle
Ratchet Non Ratcheting
Safe Working Load 550 Pounds
Type Single
Weight 2.9 Ounces
Sheave Diameter 2 5/32 Inches or 55 mm

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