Profile: Rol-tru Industries, Inc. manufactures custom ball bearing assemblies. Our OEM business products include copiers, check writers, printers, mechanical subassemblies and rotating elements. Our product line includes belt tensioning, idler sprocket, drive-train systems, business machine drawer rollers, roller & tensioning systems for fusers and woodworking tools. Our applications include magnetic rolls, immersion in toner sumps, rubber & foam roller, pulleys, gears, idlers and tensioners.