The Welger 9104200722 Shaft Seal Ring is a genuine OEM component designed for precise sealing in Welger agricultural machinery. With dimensions of 42mm inner diameter, 62mm outer diameter, and 10mm width, this seal ring effectively prevents lubricant leakage and protects against contaminants. It is a critical part for maintaining the operational integrity of numerous Welger baler models, including AP51, AP52, AP61, AP63, AP71, AP73, AP400, AP430, AP500, AP530, AP600, AP630, AP700, AP730, RP12, RP15, RP200, RP220, RP235, RP245, RP320, RP345, RP435, RP445, RP520, RP535, and RP545 series.