An axial tube assembly for a motor includes an axial tube and a sleeve mounted
in the axial tube. The axial tube is securely mounted to a casing, and a stator
is mounted to the axial tube. The axial tube includes at least one engaging member
on an inner periphery thereof. The sleeve includes at least one engaging member
engaged with the engaging member of the axial tube. When a bearing is mounted in
the sleeve, the sleeve is tightly engaged with the axial tube such that the axial
tube and the bearing exert forces to each other to thereby retain the axial tube
and the bearing in place.