The development of the HWK-643 compound opened the door to many OEM replacement applications for the Hawkhead gear tooth facing. After a long development cycle and repeated testing for tooth strength and coefficient consistency HWK-643 offers a high quality, cost efficient, facing with higher then normal tooth strength. Deploying a positive mold process brings added strength to the tooth and consistent geometry. Although in later years it has become fashionable to water cut or laser cut friction facings for production type runs we continue to endorse the molded type part. There are some applications where we will offer a machined facing, however typically this would be for a short run or emergency type application.

Because of the unique application criteria for this part we use a proprietary compound not found in our standard off the shelf material.  In this application there is a small window for product viability as this ring works in a shear pin type application where customers who understand the application know they would much rather lose a gear tooth ring instead of $20,000.00 worth of transmission.  In not your typical application from both a friction and gear tooth stand point we feel our ring hits that small target which this ring is designed for. 

With several thousands of these rings in use over the last several years, warranty claims have been virtually non-existent.