1 : MAIN BODY : Brass Material
2 : PIN HOLDER : Brass Material
3 : PIN : Stainless Steel
4 : HEXAGONAL NUT : Brass Material
5 : JEWEL BUSH & MAGNET HOLDER : Brass Material
6 : JEWEL BUSH or GRAPHITE BUSH : Sapphire or Graphite
7 : MAGNETS : Alnico or Ferrite
Design, concentricity and Accuracy are three important parameters in case of magnetic bearings. The rotor of the magnetic bearing is fitted with a Sapphire ring jewel or a Graphite bush, which has a cup cavity in the front to guide the entry of the pin. This eliminates damaging of the pin during assembly and easily guides the pin inside the hole of the jewel/Graphite bush during assembly.