Bearing alignment is an important aspect of reducing friction and wear in bearings. A small angle misalignment between 2 bearings can have a larger effect than a simple horizontal or vertical translation misalignment. In the MAE 156A kit, the bearing mounts were first lasercut and then the contact surfaces were precision milled in the machine shop. In order to take advantage of these precision surfaces the bolts to the mounting brackets should be tightened while vertical force is pressing the contact surfaces of the brackets into the T slot aluminum extrusion. See figure below: To see if your bearings are aligned, approximate terminal velocities should be:
Bearing Alignment for MAE 156A Kit Parts For industry application where bearing alignment is a concern, one could use Self Aligning Bearings. |