Recent content by CarlLyon09

  1. C

    Friction Hinge Design: Calculating Bolt Preload and Torque

    Oh the wrench torque is given by the way.. T = 300 N*mm
  2. C

    Friction Hinge Design: Calculating Bolt Preload and Torque

    Hi, I'm looking at a friction hinge design problem. See the image below for details. Looking through a machinist's handbook (pg. 1495), I get a few equations for fastener preload and wrench torque. T = k * Fi * d, where T is wrench torque, Fi is preload, and d is the nominal bolt diameter, and...