The Tolerance Ring: A proven circular springlike frictional fastener for mounting round components

Tough enough for off-road equipment
- Delicate enough for miniature ball bearings

Pic of XS

Some assorted sizes...  

Part Number   Diameter   Width   Thickness
AN175075H1   1.75"   .75"   0.012
AN212075H1   2.125"   .75"   0.008
AN56X14H1   56mm.   14mm.   0.012
AN225100H1   2.25"   1.0"   0.012
AN60X18H2   60mm.   18mm.   0.012
AN314100H2   3.14"   1.0"   0.008
AN86X32H1   86mm.   32mm.   0.012
AN103X20H1   103mm.   20mm.   0.012
BN081100H1   .8125"   1.0"   0.012
BN118050H4   1.1825"   .5"   0.008
BN131125H1   1.3125"   1.25"   0.012
BN162100H1   1.625"   1.0"   0.012
BN63X15H1   63mm.   15mm.   0.015

Other sizes available... 


Please call for details.



XS logo 

USA Tolerance Rings Xtreme Series are made of Hastelloy® C-276* alloy, and can withstand temperatures from –100 to 900 degrees Fahrenheit.  Xtreme Series Tolerance Rings can replace many other fastening and joining devices. 

Xtreme Series Tolerance Rings can survive in environments where elastomers fail or outgas.  They perform well in corrosive and oxidative situations.  Xtreme Series Tolerance Rings can also replace adhesives and eliminate the messy residue which adhesives leave behind.

Xtreme Series Tolerance Rings can be used in Oil & Gas, Chemical, and many other industries.  They can be made in most all sizes which USA Tolerance Rings offers.

Xtreme Series Tolerance Rings have been implemented in applications requiring NACE MR0175/ ISO15156 compliance. 

Benefits of using Xtreme Series Tolerance Rings are:

  • High Heat compatibility
  • Resistance to corrosion
  • Less oxidation
  • Retains “spring like” properties
  • Accepts XTREME conditions
  • No messy adhesive residue.

Custom Engineered for YOUR design...

 *Hastelloy is a registered trademark of Haynes International.








Customer Testimonial...  

"During the development of an extreme-temperature motor for an oilfield pumping system that was to operate a mile and a half underground we encountered temperatures that defeated all of our existing bearing designs.  USA Tolerance Rings’ Hastelloy rings solved the problem by providing tight fit between dissimilar parts across a very large temperature range while enduring high pressures, vibration, and temperatures that destroyed all of our other bearing designs.  They’re also easy to assemble, which is a benefit to any manufacturing process.  Thanks for a great product!" - John Knapp, Senior Design Engineer, Baker Hughes Centrilift in Claremore, Oklahoma