Journal bearing with bonded liner

US5458984A · kind A · utility

Assignee

• RENK GmbH · DE

Inventor

• Bernd Negwer · Andernach, DE

Key dates

• Filing date: Dec 22, 1993
• Grant date: Oct 17, 1995
• Expiry date: Dec 22, 2013

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/12042
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A journal bearing assembly includes a steel bearing body and a Babbitt metal liner which defines an internal bearing surface and provides a sliding bearing for a rotating journal. A porous metal bonding layer of NiAl 80/20 or AlSi 12 is applied between the bearing body and the liner. The bonding layer is spray deposited onto the bearing body and the liner is spray deposited onto the bonding layer. The liner is most porous at the bonding layer interface with decreasing porosity toward the bearing surface. The bonding layer may be flame sprayed or applied in powder form and fused. Similarly, the liner may be flame sprayed or applied in powder form and fused.