1. Unloading (sub-bar, pipe, separation, etc.)
2. Surface grinding, centerless grinding
3. Chamfer, boring, dust slot
4. Heat treatment, tempering (some have passivation treatment) The above must be processed to check the size, deformation and balance.
1. Surface grinding (end face size, parallel difference)
2. No heart grinding (size, outer circle super fine, roundness)
3. Automatic grinding (131 size, roundness, roughness. 143 size, roundness, roughness. 201 aperture, taper)
4. Super fine (roundness, roughness, finish)