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Condition-based preventive maintenance of main spindles

: Neugebauer, Reimund; Fischer, J.; Praedicow, M.

Preprint urn:nbn:de:0011-n-1531048 (255 KByte PDF)
MD5 Fingerprint: 18c6ffb55367c169286187716e44db31
The original publication is available at
Created on: 15.2.2011

Production Engineering. Research and development 5 (2010), No.1, pp.95-102
ISSN: 0944-6524
ISSN: 1863-7353
Journal Article, Electronic Publication
Fraunhofer IWU ()
machine tool; availability; condition monitoring; main spindle

Machine tools need to be highly reliable with minimal down time. Unintended failure incurs high costs due to repairs and production losses. Maintenance is a major cost factor and is still handled reactively to a great extent. Maintenance plans by manufacturers that recommend preventive maintenance based on operating hours are often not consistently implemented. Ideally condition-dependent preventive maintenance of the most critical and cost-intensive assemblies of a machine tool would be performed. This would enable a shift of planned maintenance times to non-productive periods and would also enable procuring any spare parts at the right time. Eventually, this would lead to cost savings. This article describes the design of a condition monitoring system for machine tools and shows examples of main spindle monitoring.