Axial location of bearings
In general, an interference fit alone is inadequate to locate a bearing ring on a cylindrical seat. Under load, a bearing ring can creep on its seat. Some suitable means to secure the bearing axially are needed.
For a locating bearing, both rings should be secured axially on both sides.
For non-separable bearings in the non-locating position, the ring with an interference fit, typically the inner ring, should be secured axially on both sides. The other ring must be free to move axially on its seat to accommodate axial displacement.
CARB, cylindrical and needle roller bearings in the non-locating position are exceptions. The inner and outer rings of these bearings must be secured axially in both directions.
For a cross-locating bearing system, each bearing ring needs to be secured axially on one side only.