5203Z Nachi Angular Ball Bearing One Shield 17mm x 40mm x 17.5mm Made in Japan 5203Z Nachi Angular Ball Bearing and bearing is One Shield, Made in Japan, inner diameter is 17mm, outer diameter is 40mm and width is 17.5mm. * Item: 5203Z Angular Ball Bearing * Type: Nachi Angular Ball Bearing * Closures: One Shield * Dimensions: 17mm x 40mm x 17.5mm/Metric * ID (inner diameter)/Bore: 17mm * OD (outer diameter D1): 40mm * Width/Height/thickness: 17.5mm * Size: 17 x 40 x 17.5 mm * Quantity: One Bearing * Dynamic load rating Cr: 15,000 N * Static load rating Cor: 9,250 N * Limiting Speed: * Grease Lubrication: 12,000 RPM * Oil Lubrication: 17,000 RPM * Made in Japan Nachi Double Row Angular Contact Bearing The construction of this type ball bearing is similar to the adjacent, BACK-TO-BACK mounting of two Single-row Angular Contact ball bearings. Because fewer balls can be inserted per row compared to Single-row Angular Contact ball bearings, a Double-row Angular Contact ball bearing will have less load capacity than an equivalent size/series BACK-TO-BACK set of two Single-row Angular Contact ball bearings. This bearing type can sustain radial, moment and bi-directional axial loads.