Housings, housing bearings, bearing units, plummer block housings, bearing blocks
While the inner ring of a rolling bearing is mounted on a shaft, the outer ring also requires a fixing or mounting. This can be an interference fit in a component or a bearing housing. Bearing housings are available in various designs, materials and versions. If the shaft of plummer block housings is not to be movable in the axial direction, a "locating bearing" is required. In order to prevent axial displacement of the bearing in the locating bearing housing, a locating ring is used on each bearing side, which means that axial displacement is no longer possible.
Temperature fluctuations can cause the shaft to change length in the axial direction. If both bearings were mounted as fixed bearings, this would lead to excessive load on the bearing set and thus reduce the service life. Therefore, one of the bearings should be movable in the axial direction and is referred to as a "floating bearing". Fixed rings should not be fitted to this type of bearing housing. Without locating rings and with the bearing seat tolerance H7, the bearing can be moved axially if necessary.
Manufacturers use different designations for bearing housings, such as SNH / SNL (SKF), SNV (FAG) etc. We are happy to support you in converting your housing bearings.
