The Simplicity 2172256 is a genuine OEM ball bearing, cross-referenced as Fafnir 205K17. This high-quality bearing features an inner diameter of 17 mm, an outer diameter of 52 mm, and a width of 15.875 mm. It is designed for use in a wide range of Simplicity lawn and garden tractors, riding mowers, and zero-turn mowers, ensuring smooth operation and reliable performance. This bearing is also equivalent to Briggs & Stratton 2172256, Allis Chalmers 2172256, and Snapper 2172256.