The closer tolerance demand very tight control during manufacturing process which incur higher cost.
Rubber tolerance standard.
You can also consult the rma article on factors affecting tolerances of molded rubber products.
Standard rubber tolerances for molded rubber parts 262 632 2345.
Tolerance levels typically impact cost due to increased processing and higher reject rates.
Linear dimensions bs iso 3302 1.
However some of the table numbers are different.
Extruded rubber tolerance chart rubber extrusion tolerances.
Fixed dimension independent dimension not calculated from other reference dimensions.
Closure dimension largest outside dimension and additional outside dimensions on the same part.
These are helpful when designing and producing a part.
Tolerances for outside diameters o d inside diameters i d wall thickness width height and general cross sectional dimensions or extrusions.
Please contact u s to review capabilities for your application.
Collaboration to establish an agreed standard is key.
While they are now issued by a new organization the tolerance ranges have remained unchanged.
When you need close tolerance please specify it in drawing or mention it in quote request.
Molded rubber tolerance chart rubber molding tolerances.
For a general guide see below downloadable pdf beneath.
By simply calling out the standard can eliminate the need to tolerancing each specific feature on a print.
For example table 4 is for molded rubber products with commercial a3 tolerances.
For outside diameters inside diameters wall width height and general cross sectional dimensions of extrusions.
International standard iso 3302 1 was prepared by technical committee iso tc 45 rubber and rubber products subcommittee sc 4 miscel laneous products.
This edit ion of iso 3302 1 cancels and replaces iso 3302 1 199 60 rubber tolerance for products dpart 1 dimensional tolerances for use.
Rma tolerances for molded rubber products using the industry standard callouts for rubber tolerancing is good practice and provides for a common understanding between the design engineer and the manufacturer.
This information is provided for general guidance only please contact us to confirm any specific requirements.
For each range of millimeter and inch based part sizes you ll see that plus and minus amounts are given for fixed and closure dimensions.
Tolerance levels typically impact cost due to increased processing time and higher reject rates.