Translations:PartDesign Bearingholder Tutorial I/15/en

For the case of the bearing holder, the two most important design dimensions are the distance between the bolts (which limits the size of the bearing that can be used) and the height of the bolt heads. The dimensions chosen are
 * Distance between bolts: Radius of bearing (45) + wall thickness (5) plus radius of hole for bolt (7) = 57mm, so the vertical plane will be 57mm offset from the YZ-plane. To create this datum plane, select the YZ-plane and then choose to create a new datum plane. Enter the offset in the dialog that opens up
 * Height of bolt heads: This was chosen as an offset of 28mm from the XZ-plane