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In 2019 the ZKL Brno machine park was strengthened with a new BB 400ST CNC tipless grinder. Thanks to its innovative design, it enables the grinding of the shells of two rolling elements in one operation. The dimensions of these rolling elements range from a diameter of 50 mm to a diameter of 400 mm, with the heaviest rolling element weighing up to 40 kilograms. This machine will be fully used for the production of rolling elements within the program of large-scale bearing production of the ZKL Group.