McGill Precision Bearings MI28 MS51962-25 Inner Race

The McGill MI28 MS51962-25 is a precision inner race designed for use in needle roller bearing assemblies, providing a high-quality raceway for rollers in demanding industrial and military applications. Manufactured by McGill, a leader in precision bearings, this component conforms to military standard MS51962-25, ensuring reliability in high-load, high-precision environments such as aerospace, automotive, and heavy machinery. Key features include a hardened steel construction for durability, precise tolerances for smooth operation, and compatibility with standard needle roller sets. Benefits include excellent wear resistance, reduced friction, and extended service life compared to generic inner races, making it ideal for applications requiring radial load support without full bearing housings. Drawbacks may include higher cost due to precision manufacturing and the need for proper lubrication to prevent premature wear. This inner race excels in scenarios like conveyor systems, cam drives, and transmission components, offering superior performance over lower-grade alternatives by minimizing downtime and maintenance needs. Condition analysis from images shows it as new in original packaging, with a slightly worn box but no visible damage to the part itself; it appears unused, wrapped in protective plastic with some preservative oil. No serial number visible on faceplate, but labels confirm model and standard. Estimated market price range is $20-40 USD for new condition, based on comparable online listings from industrial suppliers like Grainger and eBay. For resources, refer to McGill's official catalog (available at https://www.regalrexnord.com/brands/mcgill) and MS51962 standard datasheet (searchable via ASSIST Quick Search at https://quicksearch.dla.mil). Model decoder: MI indicates inner race series, 28 denotes nominal bore size (28/16 = 1.75 inches).