Abstract: An improved flat electric motor comprising a casing and a drive shaft passing through the casing and rotatable about the axis thereof relative to the casing. An armature unit having a commutator is mounted on the drive shaft to rotate therewith, with electric brushes in contact with the commutator to provide electric connection therebetween. Two annular bearings are connected to the casing to bear two axially spaced portions of the drive shaft, one of the annular bearings having a resiliently mounted support to adjust the position of the selected bearing relative to the casing. The mounted support includes a bearing holder, a resilient spacer, and threaded bolts compressing the resilient spacer for adjusting the location of the support.