Compensa GmbH • A-1150 Vienna, Alberichgasse 2 • Phone: +43 1 982 14 39 0 • post(at)

Bearing housings

Gehäuselager1. Bearing insert

The bearing installed in the bearing housing (“Bearing insert”) is equivalent in its internal construction and design, and in its load-bearing capability, to the ball bearing of the 62nd or 63rd bearing series according to DIN 625.

2. Self adjustment

The outer ring of a bearing insert is ground spherically and supported in a housing borehole that has a similar round profile. As a result of the round holder of the bearing insert in the housing, the axis is capable of angular movements at all planes. Alignment errors of the bearing and deflections of the shaft are thus eliminated automatically. 

Similarly, owing to the angular movement capability, edge pressure between the balls and the contact surfaces are principally ruled out.

3. Fastening on a shaft

The inner ring of the bearing insert can be fixed very easily on the shaft.

4. Optimum sealing of the bearing inserts

The bearing inserts are sealed on both sides with a sealing washer made of steel plate-reinforced, oil-resistant and heat-resistant Perbunan. For bearing inserts of the model series UC, UK and HC, centrifugal steel plate discs are also placed on the inner ring. With this combination, there is double sealing and protection for the rubber seal against external mechanical impact.

5. Additional sealing ring with steel plate protective caps

In particularly critical environmental conditions such as in cement factories, steel smelters, mills and foundries, cast bearing housings may be fitted with additional steel plate protective caps.
Dummy caps are available for end bearings.

6. The housing ...

… is manufactured from cast iron, plastic or steel plate depending on the application-related load or stress. Cast iron housings are designed as single-piece housings while steel plate housings are designed as two-piece housings.

7. Permissible operating temperature COM

The normal design is meant for operating temperatures from -25° to +120° C. For other temperature ranges, hot bearing types of grease and low-temperature types of grease are available (for more information, please contact our technical department).

8. Lubrication

The amount of lubricant needed by the COM bearing housing is very low. The quantities of grease filled in at the factory is adequate for the service life of the bearing under normal operating conditions. However, re-lubrication may become necessary as a result of unfavourable environmental factors such as a dusty or moist environment or increased thermal load. Increased bearing temperatures may be caused by thermal radiation of adjacent devices or increased speeds. It is not practically feasible to make a precise forecast regarding the usage period of the lubricant or the necessary re-lubrication intervals, since the critical factors pertaining to duration and load or stress can barely be recorded. Generally speaking, empirical reference values are used in practice.


Application area:
e.g. conveyor systems, agricultural machinery and wherever ease of assembly (without drilling, turning and grinding) is called for just as much as a high level of protection against dust etc.


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