Cam Followers | Industrial Bearings | Needle Rollers | Load Rails - Load Runners | Osborn - A unit of Jason Incorporated Osborn Load Runners are robust assemblies of carefully fabricated outer shells/treads and precision bearings fitted to high tolerance shafts. All Osborn Load Runners match the tread, shaft and bearings into a cohesive, highly engineered unit used in dozens of industries and hundreds of applications.