Blog - Bowling Education — PBA Tour
PBA Urethane Bowling Ball Ban and USBC 2016 and 2017 Purple Hammer Ban Information
Posted by Ronald Hickland on
USBC UPDATES NATIONAL TOURNAMENT RULES IN RELATION TO PURPLE HAMMER ARLINGTON, Texas - The United States Bowling Congress is aware of a claim that a portion of the Purple Hammer bowling balls manufactured at the Ebonite International plant in 2016 and 2017 may have been produced below USBC's minimum 72D hardness specification. The Hammer brand was purchased by Brunswick Bowling Products in 2019, and the Ebonite plant subsequently closed.USBC conducted an investigation, interviewing more than a dozen individuals, including former Ebonite employees, in an attempt to validate the claim. Brunswick fully cooperated with the investigation.USBC has confirmed a production...