Details
These sets of three matched super-precision angular contact ball bearings are available as universally matchable bearings or as preconfigured arrangements. Sets arranged in back-to-back and tandem, or face-to-face and tandem, are available in different preload classes and correct mounting results in preload within a predetermined range, without the need for shims or similar devices. Sets of three bearings paired in tandem need to be mounted against a single bearing, or another set of bearings in tandem, to achieve the desired preload. 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. Material : High-carbon chromium bearing steel rings and balls with a lightweight fabric-reinforced phenolic resin (hard fiber) cage to reduce centrifugal forces. Features are: Very High Running Accuracy, Accommodate Very High Speeds, 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, TBTA= Set Of Three Matched Single Row Deep Groove Or Angular Contact Ball Bearings, Light Preload.
Specifications
| Product serial no. |
1212221 |
| Inner Diameter |
120 MM |
| Outer Diameter |
180 MM |
| Width |
84 MM |
| Cage |
Yes |
| Seal |
No |
| Bore |
Cylindrical |
| Lubrication |
Standard |
| Category |
Ball bearings |