The type of bearings includes: 1. Angular Contact Ball Bearing (7000series) 2. Cylindrical Roller Bearing (NU,NJ, NUP) 3. Deep Groove Ball Bearing (6000series) 4. Pillow Block Ball Bearing (UC, UCP, UCF) 5. Spherical Roller Bearing (21000, 22000, 23000,24000,29000 series) 6. Tapered Roller Bearing (30000series and Inch Size) 7. Thrust Ball Bearing (50000series) Chrome Steel(GCR15) & High Carton Steel; ISO9001:2000 & OEM.is welcome!