The Oregon 25520 Ball Bearing is a genuine replacement component designed for various outdoor power equipment applications. This durable bearing features an inner diameter of 15.875 mm (0.625 inches), an outer diameter of 34.925 mm (1.375 inches), and a width of 11.10 mm (0.437 inches). It ensures smooth operation and reduces friction, contributing to the longevity and performance of machinery. Always refer to your equipment's manual for specific compatibility and installation instructions.