Bearing with white metal lining
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Special and custom machining

White metal linings, bimetallic and trimetallic bearings, bushings with graphite inserts.

White metal linings and graphite-insert bushings are the machining work that has set us apart for over forty years: special processes developed in our workshop, certified materials and the option of repairing the existing part instead of replacing it.

Split bearing with trimetallic lining

Bimetallic and trimetallic bearings, white metal linings

With a dedication to mechanics, meticulous care and the long experience of our technicians, designers and draughtsmen, we supply and repair spherical bearings, whole or in two halves, offset, in large and standard sizes, fitted on turbines, centrifugal and reciprocating compressors and gearboxes, with bimetallic and trimetallic linings (steel or cast iron + pink metal + white metal) with a thick layer of anti-friction metal.

We also manufacture and recondition crossheads, main and connecting-rod bearings for compressors of all types, pads for machine tool steady rests, bushings for grinding wheels, cradles and supports for mills and crushers.

Depending on the application we recommend the most appropriate lining method and any lubrication improvements. Our special processes guarantee maximum adhesion between base material and anti-friction metal, with a finished white metal lining thickness of up to 12 mm, even on cast iron parts where traditional methods (centrifugal or static) fail to bond. The white metal, of first quality and free from impurities, is sourced from leading Italian suppliers with chemical analysis certification.

Thanks to these processes, especially on repairs, the customer considerably reduces operating costs, with maximum output and efficiency of the repaired parts in service.

Bushings and sleeves with graphite inserts

The experience gained in maintenance and manufacturing allows us to design and supply bronze sliding bushings with self-lubricating graphite inserts, tailored to the customer’s needs according to the application.

Standard copper-based alloys are customised and modified, through an agreement with one of the leading Italian foundries, to obtain parts with high mechanical properties (hardness, strength, yield) together with anti-friction, sliding and rolling properties.

These applications are used where high mechanical loads are present and fluid lubricants cannot be used: food, plastics, moulds, electrical, hydroelectric, petrochemical and mechanical sectors.

Bronze bushings with self-lubricating graphite inserts

Procedures, materials and documentation

Compliant procedures

Our activities are carried out according to appropriate procedures, constantly updated and compliant with international technical standards, within our ISO 9001:2015 certified quality system.

Certified materials

Materials are sourced from leading Italian and international suppliers and come with certificates of chemical analysis and mechanical properties or of conformity, in addition to certificates for any additional heat treatments and non-destructive testing.

Technical documentation

All supplies are accompanied by accurate technical documentation and certificates of conformity. Maintenance work comes with maintenance reports, machine data sheets, dimensional reports, inspection sheets, testing and commissioning records.

How we work

From enquiry to delivery, with the same procedure for every job.

1

Enquiry

Call us or send us a drawing, photo or sample of the part.

2

Site survey

If needed we come to your plant: on-site diagnosis and dimensional surveys.

3

Quotation

Technical proposal with lead times, materials and certifications.

4

Work

In our workshop in Terni or at your site, under ISO 9001 procedures.

5

Testing and report

Delivery with technical documentation, dimensional reports and certificates.

A plant at a standstill or a spare part to be made?

Call us on +39 0744 800179 or send us a drawing, sample or photo of the part: we reply with a quotation.