You master, can you point out the roller bearing pitch circle diameter, with what formula?
The pitch diameter of roller bearing is the diameter of central garden, and its calculation should take into account the bearing load, rotation speed and so on. The general geometry is simple.
Is the pitch diameter not the center diameter? The dimension of the inscribed circle plus the size of a single roller is not the diameter of the pitch circle! Actually, it's Dpw=Fw+DwThis is the technical term of the bearing. Can you understand it? If you can read it, it means you can know the diameter of the circle!
You can not calculate the specific value, no designer according to the actual situation will be estimated in the amount of about a little adjustment. This value becomes different brands, different designers will be slightly different.However, the use of the estimated value of basic little impact, the error is very small, can meet the application.
One for estimating the inner diameter plus the outer diameter divided by 2.
