SKF - 7020 ACE/P4AQBTA

Details

These sets of four matched super-precision angular contact ball bearings are available as universally matchable bearings or in preconfigured arrangements. Sets of four bearings arranged in tandem need to be mounted against a single bearing, or a set of bearings in tandem, to achieve the desired preload. All the other arrangements are available in different preload classes and correct mounting results in preload within a predetermined range, without the need for shims or similar devices. The bore and outside diameters of the bearings are matched to within a maximum of one-third of the permitted diameter tolerance, to provide better load distribution than single universally matchable bearings. Features are : Very High Running Accuracy, High Load Carrying Capacity, High Axial and Radial Stiffness, Maintenance-Free, Precision & Stability, Low-Friction Grease. Applications : Machine Tool Spindles, Grinding Machines, Aerospace & Defense, Medical & Laboratory Equipment, Semiconductor Manufacturing, Robotics & Automation, Renewable Energy Systems, Marine & Underwater Technology. ACE= 25° Contact Angle And (E) Small Size Balls, P4A=Dimensional Accuracy In Accordance With ISO Tolerance Class 4, Running Accuracy Better Than ISO Tolerance Class 4, QBTA= Four Bearings Arranged Back-To-Back And Tandem, Light Preload.

Specifications