82188218, 0.2 mm Japanese: Shaft Diameter: ф10 mm (ф 12 mm Internal) Shaft Length: 9.5 mm: Motor Diameter: ф89 mm: Motor Rotor Inertia: 3.260 kg*cm^2: Motor Length: 54.2 mm: Motor8218 PUMPAC BRG. Duplex Type. Back-to-back. Element Material. Bearing steel. Fillet Radius. 2 mm. Finish Coating. Uncoated. Inner Ring Width. 60 mm. Internal Clearance.