Bearing dust covers and caps

Dust caps and bearing covers are protective components designed to protect bearings from external contaminants and to reduce lubricant leakage. They perform both sealing and protective functions in bearing housings.

Typical applications include installation on shafts and in bearing housings where it is necessary to limit the ingress of dust, particles or other contaminating influences into the bearing space. The correct design of a cover or dust cap contributes to the reliable operation of rotating and sliding joints.

Designs may vary depending on construction requirements and operating conditions; some variants are primarily protective, while others combine protection with lubricant sealing. The choice of a specific solution depends on the type of bearing arrangement and the method of assembly.

Protection against dust and ingress of contaminants
Limitation of lubricant leakage
Reduction of the risk of premature bearing wear

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