Product Specifications – Molded Rubber

 

Dimensional Tolerances for RubberMill molded parts are made to Rubber Manufacturer’s Association (RMA) “A3” commercial specifications. The illustration shows a labeled mold cross section to help identify the “closure” and “fixed” terminology. Fixed dimensions are not affected by flash. Closure dimensions will have flash and affect thickness variation.

Note: Tighter tolerances than RMA “A3” commercial specifications are available. Please contact your RMI sales associate for more information.

RMA “A3” Commercial Tolerances – Molded Rubber

Size Inches Fixed Closure
0 – .40 +/- .008 +/- .013
.40 – .63 +/- .010 +/- .016
.63 – 1.00 +/- .012 +/- .020
1.00 – 1.60 +/- .016 +/- .025
1.60 – 2.50 +/- .020 +/- .032
2.50 – 4.00 +/- .025 +/- .040
4.00 – 6.30 +/- .032 +/- .050
6.30 – Over Special Quote
Properties are typical values. Final determination for suitability for use must be made by the customer. (02/17)