The Oregon 111185X Power Mate Rim Sprocket is a genuine replacement part designed for chainsaws. This rim sprocket features a 0.325-inch pitch and 7 teeth, ensuring optimal chain engagement and performance. It is engineered with a standard 7-spline inner diameter, making it compatible with various chainsaw models. The Power Mate system allows for easy replacement of the rim without replacing the entire clutch drum, offering convenience and cost savings. This durable sprocket is crucial for efficient power transfer from the chainsaw engine to the cutting chain, maintaining consistent cutting speed and reducing wear on other components.