SKF PSM 253220 A51 sliding bearing, sintered bronze

PSM 253220 A51 is a sliding bearing made of sintered bronze. Sintered bronze is a porous material with a pore volume of approximately 28%, which is filled with mineral oil. Therefore, the bearing is suitable for use in maintenance-free applications at temperatures ranging from -10 to +90°C. Bearings made of sintered bronze have - high sliding speed - low friction - do not require lubrication