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Roller bearing manufacturing

Quality assurance

Customers expect a high level of quality coming from a dedicated German medium-sized custom manufacturing company. We have been meeting these expectations for decades, and have the documents to prove it: 

Our quality management system has been certified since 1997 according to DIN EN ISO 9001. And our company standards surpass the existing DIN-norms. Individual agreements and coordination with our customers for further test parameters upon request.

These are important prerequisites for the longevity and the excellent running properties, which are characteristic of our products. Every procedure during production is monitored with modern test equipment and documented. Process-integrated measurement techniques guarantee the best running properties and outstanding concentricity values. We ensure the consistently high quality of our products through our testing equipment; such as our contour graphs combined with surface measuring instruments.

Also the high-quality materials and modern manufacturing technologies help ensure that our bearings meet the highest quality standards. First sample test reports and other documents of quality assurance as agreed upon, are delivered with our bearings. On demand, we also provide the IMDS No. (commonly used in the automotive industry) for our available bearing products.

coordinate measuring machine
Coordinate measuring machine
measuring of bearing ring
Bearing ring measurement
Surface measuring instrument
Surface measuring instrument

Logo AKT Küpper


Artur Küpper GmbH & Co. KG
Wülfrather Straße 32-52
42553 Velbert

phone: +49 (2053) 497 - 0
fax: +49 (2053) 497 - 20
email: This email address is being protected from spambots. You need JavaScript enabled to view it.
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