Over time, sealing surfaces will become grooved, making a good seal impossible. The most economical and fastest method of shaft repair is to install th cr speedi sleeve. Speedi sleeve is a precision engineered piece of stainless steel. It 's ultra-thin wall design allows it to be used without changing the seal size, and it 's finish is perfect for lip sealing applications. Speedi sleeve is built with a removable installation flange. The installation tool included in every box allows the seal to be put on. This avoids the possibility of distortion from heat or other installation methods.