Bergman Specialty Products is the leader in Chicago Rawhide, NOK, TCM and National oil seal replacements and cross over sizes.  We are able to cross national oil seals in large or small quantities as you may require.

Freudenburg NOK along with National and Chicago rawhide can furnish all of your rotary sealing needs.  When lead time is a problem, we can clone and duplicate many major brands to meet competitive pricing and less strenuous lead time requirements.

Bergman Specialty Products has over 250,000 rotary seal combinations and materials to choose from.  We require that you furnish your OEM part number, and sizes along with material requirements if at all possible, due to the fact some of the older style seals may be obsolete and require special tooling. 

Remember, when National, NOK, TCM, or Chicago Rawhide is not available, let us assist you in duplicating your application requirements with lead times to meet your demands