A high-precision internal grinding process scheme was proposed for deep hole of shaft bearing in this paper. In or-der to increase the product precision during grinding process,a multiple-grinding method with small amount of grinding depthwas carried out by using the surface of internal hole and outer cylinder as the mutual reference. A combined-fixture was alsodesigned since the diameter size of part has exceeded the chuck capacity. The measuring results prove that the scheme has sta-ble results and refere...