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> General

> High class manufacturing quality

      
 
Borrelly specialises in designing and manufacturing spring washers, including Belleville washers and special stackings. We offer our customers recognised expertise and a worldwide reputation in our field.
Our skilled teams can provide solutions for delicate problems in all high-tech fields, including the offshore, nuclear and aerospace industries.
For prototyping and small production runs, we regularly use materials designed to withstand extreme environments (high or cryogenic temperatures, chemical substances), such as:
  
• INCONEL 718
• Beryllium copper
• Austenitic and martensitic stainless steels
• Structurally hardened stainless steels
• Special steels such as 45SCD6, 50CV4, XC75
• Composite materials
• INCONEL 750
• Titanium
• Nimonic 90
• Hastelloy
Our in-house engineering department, equipped with high-performance computational software, quickly responds to your constraints and provides solutions tailored to your requirements.
 

> Centring
  belleville washer, spring rings
Belleville-type spring washers may be centred either by the inner or outer diameter.
   

 > Stackings
 
• Parallel: forces are cumulative, deflection is equal to
that of a single washer.
• Series: deflections are cumulative, force is equal to that
of a single washer.
• Mixed: parallel-stacked groups of washers may in turn
be stacked in series.
 
  belleville washers, flexible washer belleville washers, spring washer  belleville washer, spring washers  
 
 Parallel stacking
 Series stacking
 Mixed stacking