LAPPING 6.00″ Pivot Shoe refurbished & relapped flat.Robco provides lapping and polishing services not just for mechanical seal faces and seats but also pump parts and custom applications.We can relap pivot shoes, thrust bushings & engine parts, etc. For lapping and Polishing Services. Give us a call, we can Help. Robco can lap parts up to 14″ diameter. Lapped seal faces under monochromatic light. Parts are lapped flat to within industry standard 2 light bands. 1-800-662-0585 Contact Robco of America right now if you need emergency mechanical seal repair. We provide quick response service.