Poulie simple plat pont à billes Wichard.
Poulie simple plat pont à billes Wichard.

Single ball bearing block - Sheave 55 - Cheek block M6

Part #74120


Complete range of ball bearing blocks
Modern design
Innovative design with two lateral races of ball bearings
Smooth running for low load adnhigh speed action
Under high load the hub runs on  stainless steel bush which allows the sheave to run freely
Light cheeks protecting the sheave
Wide choice of fastenings thanks to the universal head


Cheek blocks applications for genoa sheets

Technical information

  • Materials Grade 316L stainless steel head configuration
    Grade 316L stainless steel load straps
    POM cheeks
    Delrin® ball bearings
    Composite saddle for cam models
    Composite sheave
    Terminal (shackle i.e…): 316L stainless steel grade
  • Rope size Pour cordage de 12 mm
  • Length (mm) 81
  • Width (mm) 63
  • Thickness (mm) 26
  • Sheave diameter (mm) 55
  • Working load (kg) 720
  • Breaking load (kg) 1500
  • Weight (g) 123


Working load (WL) : for nautical applications

Working Load Limit (WLL): for industrial applications only.
The safety factor is 5 times the breaking load.
WLL = Breaking load / 5

CAD file

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