Seal Design
Choosing the proper seal for an application can sometimes prove difficult. To help with this process we have provided an on-line form that will guide you through all the information needed in order to come up with a design for your particular application. As always, feel free to contact us directly and we can walk you through the design process.
A question we get a lot is "What should be the proper interference between the shaft and the seal?". In days past, general industry seals were designed to cover a wide range of applications, and liberal tolerances on the shaft. Today most companies pay closer attention to their shaft tolerances and have tighter controls on their process, making it easier to get a more consistent shaft diameter. This said, assuming there is no significant shaft to bore misalignment or dynamic run-out, the graph below should be a good guideline for proper interference levels. Again, if you ever have any questions please don't hesitate to contact us.

Click here if you'd like a PDF version.
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News
March 1st
Power-Gen 2010 Zerelli Technologies Inc. will be exhibiting at this year's...
Power-Gen 2010
May 6th
16th ISC - Stuttgart, Germany
International Sealing Conference
March 22nd
Aftermarket Partner - Seneca Rubber Zerelli has joined forces with
Aftermarket Partner
April 16th
Sales Coverage - VE Bracket Zerelli is pleased to announce that we have brought on the team from
Sales Coverage
November 1st
Zerelli Technologies Published in the November Issue of Pumps and Systems Magazine
February 23rd
Here is a great article on grease compatibility . . .
The Skinny on Grease Compatibility
July 30th
Here is a link to a great article about how to avoid particulate contamination . . . Obviously it goes without saying that a sealing...
How to Avoid Particulate Contamination
