The deep groove in a ball bearing is characterized by a raceway with a deep, concave profile that forms a continuous, circular track for the bearing's rolling elements, typically steel balls. This design feature allows the balls to move freely within the raceway, distributing the load evenly and minimizing friction during rotation. The deep groove also provides space for the lubricant, which helps to reduce wear and heat generation, ensuring the bearing's longevity and reliability.

Turkey auto parts exhibition Automechanika Istanbul is one of the Automechanika global series exhibitions jointly organized by Messe Frankfurt and Hannover Istanbul branch. The exhibition was first held in Istanbul in 2001, and it is held annually. The exhibition enjoys high reputation in Central and Eastern Europe and even the world, and has developed into a leading exhibition in the OEM and aftermarket of Eurasia.