The Kramp 828315 Ring SD25 is a high-quality retaining ring, manufactured by Kramp, specifically designed for secure fastening within Walterscheid PTO (Power Take-Off) shafts of the SD25 series. This essential component ensures reliable retention of parts, preventing axial movement in agricultural and industrial machinery applications. Constructed from robust spring steel, it features a 25 mm shaft diameter, an outer diameter of 29.5 mm, and a thickness of 1.5 mm, making it an ideal replacement part for maintaining the integrity of Walterscheid PTO drive systems.