GJP X-RAY Tube Precision Bearing is a very important part for X-RAY machine, it''s a combined bearing which include flange, bearing and shaft, the bearings are made with a kind of very good quality tooling steel material and have very good stability, reliability and consistency, which could guranted the rotation speed limited as 12000RPM and could bear 450 to 550 working evironment temperature, and the life duration is 50000 times exposure.