Reduction gears for agitation mills, and corresponding mills and uses. This reduction gear for driving the agitating mill comprises: a reduction gear housing (40), an input shaft (42) suitable for being connected to a drive motor, and a reduction stage ( 44) and an output shaft (46) suitable for being connected to the agitating mill element and suitable for being driven by a reduction stage. The output shaft (46) comprises a proximal axial side corresponding to the deceleration stage (44) and a distal axial side facing the proximal axial side and fastened to the agitating mill element. The reduction gear is suitable for guiding the output shaft (46) in the axial direction and restricts the axial movement of the output shaft (46) in the direction from the proximal axial side to the distal axial side. An axial stop (66) is provided that is suitable for [Selection] Figure 2
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