Series 55 Orbit BB Single Block with Becket, Swivel Mount
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RONSTANSeries 55 Orbit BB Single Block with Becket, Swivel Mount


In stock online.
Model # 11075363 | Mfg # RF55110UPC # 9316800440405


Series 55 Orbit BB Single Block with Becket, Swivel Mount

Name Value
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 1100 Pounds
Sheave Diameter 2 5/32 Inches or 55 mm
Type Single
Weight 3.1 Ounces

Product Overview

Series 40 Ball Bearing Blocks are suitable for sheet applications on dinghies, sportboats and small one-design keelboats, and for control lines on larger boats. They feature a precision two-stage bearing system for better durability, lighter weight and low-friction performance. Models with swivels feature stainless steel shackles. 

  • 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
  • Cheek material/finish: Toughened glass-fiber-reinforced nylon


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