These four paired super precision angular contact ball bearings with seals are available in a wide range of designs, variants, and configurations, enabling them to be used in virtually any machine tool application, as well as other applications requiring precision bearings. Pre-set configurations include: "Tandem", "Tandem plus back-to-back", "Tandem plus face-to-face", "Back-to-back plus tandem, "face-to-face plus tandem". Bearing sets with four bearings paired in tandem require that the individual bearings be mounted with the three tandem paired bearings next to each other in order to obtain the desired preload. All configurations are available in different preload ratings and when correctly fitted will produce preload within a pre-set range without the use of shims or similar devices. The paired bearings have ID and OD tolerances that do not exceed one-third of the allowable diameter tolerance, resulting in a more even load distribution than a single universal paired bearing. Load

• very high running accuracy
• High axial and radial stiffness
• High axial and radial load carrying capacity
• A wide range of designs and patterns are available to meet the needs of various equipment applications.