Understanding
Our
Part
Numbers
|
Tolerances
Our standard
seal tooling is dimensioned to the shrink characteristics of our popular
366Y, a 70 durometer nitrile formulation. Because every rubber formulation
has its own shrink characteristics, slight deviations in dimensional
tolerances will occur when standard seal tooling is used with materials
other than our 366Y. The majority of the cases we encounter involve rubber
compounds with a higher shrink factor, resulting in an undersize seal, so
a slight adjustment in groove dimension may be required. This shrinkage is
most pronounced when using silicone, fluorosilicone and flouroelastomer
materials, and occurs during both curing and post-curing of the
part.
Please contact us for tolerances when
specifying any of these other compounds.
Nominal and Actual
Dimensions
The following part numbers are
linked to tables providing both nominal and actual dimensions, reflecting a slight built-in size
reduction for effective sealing.
Numbers
001-175 /
176-247
/ 248-284 /
285-370
/ 371-448 /
449-475 / 901-932 |