Abstract: Reduction bearing having at least three concentric rings that include an inner ring with inner ring axial extension, a center ring with center ring axial extension and an outer ring with outer ring axial extension and at least two concentric rings of/with rolling elements including an inner concentric ring of/with rolling elements and an outer concentric ring of/with rolling elements. Inner ring and center ring are configured as bearing races for inner concentric ring of/with rolling elements and center ring and outer ring are configured as bearing races for the outer concentric ring of/with rolling elements. At least one reduction stage has a common reduction stage plane in which the inner ring extension, the center ring extension and the outer ring extension lie. The center ring extension is configured to transmit a wave-type reduction action between the inner ring extension and the outer ring extension.