Sheet Rubber Tolerances

When it comes to rubber manufacturing, it is important to understand that rubber does not behave like a metal. Rubber is an elastomer, and is meant to be bend, stretch and react to certain environments and situations. When measuring rubber, there will be some variances in thickness, width, length and durometer. 

 As an engineer or product designer, it is good to remember the idea of tolerance when creating your part. We have generations of experience creating products, and follow the Rubber Manufacturer's Association (RMA) guidelines regarding tolerance ranges. The RMA has developed the most widely used standard of acceptable tolerance measurements to help companies and manufacturers successfully create high-quality products. Many things, such as environmental exposure and temperature will affect the way rubber behaves and measures. 
The basic tolerance table for our sheet rubber products is below. Please keep these variances in mind as you design your product.
 And, as always, if you have questions or concerns, your SUPPORT TEAM is ready!

 Rubber Sheet Tolerances

Fractions Decimals Inches
Under 1/32 Under .031 +/- .005
1/32 to but not including 1/16 .031 to .062 +/- .012
1/16 to but not including 1/8 .062 to .125  +/-.016
1/8 to but not including 3/16 .125 to .187 +/- . 020
3/16 to but not including 3/8 .187 to .375 +/- .031
3/8 to but not including 9/16 .375 to .562 +/- .047

For more detailed information on RMA tolerances view the RUBBER MANUFACTURERS HANBOOK