These four mated, sealed, ultra-precision angular contact ball bearings are available in a variety of designs, variants, and configurations, allowing them to be used in virtually any machine tool application as well as other applications that require precision bearings. The pre-configured configurations are: "Tandem", "Tandem plus Back-to-Back", "Tandem Plus Face-to-Face", "Back-to-Back Plus Tandem", "Face to Face Plus Tandem". A bearing set with four bearings mated in series requires three mating bearings in series on a single bearing to be mounted in close proximity to obtain the required preload. All configurations have different preload levels, which, when properly installed, generate preload within a pre-set range without the use of gaskets or similar equipment. The inner and outer diameter tolerances of mated bearings do not exceed one-third of the permissible diameter tolerances, resulting in a more uniform load distribution than a single universal mating bearing. load

• The accuracy of operation is very high
• High axial and radial stiffness
• High axial and radial load capacity
• Available in a variety of designs and styles to meet the needs of a wide range of equipment applications