Ball Bearing Housed Units (Self Lube)
Housed bearings units (insert bearings) are deep groove ball bearings of series 62 and 63 which are sealed at both sides, often have a convex sphered outside diameter on the outer ring, and have an inner ring - with the exception of two series - which is extended at one or both sides.
When mounted in appropriate housings to form housed bearing units, they are able to compensate for initial errors of alignment.
Simple and economic bearing arrangements can be made using housed bearing units. Because of their characteristics,housed bearing units are used in agricultural machinery, construction equipment, conveyor systems, textile machines and fans as well as in machines for food and beverage processing and packaging.
Housed bearing units do not permit axial displacement and are therefore unsuitable for non-locating bearing arrangements. The distance between bearing positions should thus be short, or the units should be attached to resilient sheet metal fabrications to prevent them from being subjected to excessive stressing, for example, as a result of thermal elongation of the shaft.