How to correctly use the NTN bearing to prevent the damage

NTN bearing installation space can accommodate in bearing installation space type bearing due to the design of shafting pay attention to the rigidity and strength of shaft, so generally, first determine the diameter of axle, bearing inside diameter. But rolling bearing series of a variety of sizes and types, should choose the most suitable type of bearing. The size, direction and nature of load bearing load [ Bearing load capacity with basic rated load, according to its value in NTN bearing size table] Bearing load abound change, such as the size of the load, if only the radial load, axial load is a one-way or two-way, the degree of vibration or shock, and so on. After considering these factors, and then to select the most appropriate type of bearing. In general, the same inner diameter of the bearing radial load capacity increasing in the following order: < < angular contact ball bearing deep groove ball bearing cylindrical roller bearing < < taper roller bearing self-aligning roller bearing speed can adapt to mechanical speed bearing type [ To benchmark the threshold of the bearing rotating speed with speed limit, said its value in NTN bearing size table] Bearing limit rotational speed is not only to take on bearing type is limited to the bearing size, cage type, precision grade, load condition and lubrication method, etc. , therefore, when the choice must consider these factors. Most of the following bearings used in high speed rotation: deep groove ball bearings, angular contact ball bearings, cylindrical roller bearing has the required rotation accuracy of rotary precision bearing type the dimensional precision and the rotating precision of NTN bearing is not the GB by bearing type standardization] Machine tool spindle, gas turbine, and control machine, high rotating accuracy, high speed and low friction, at this time should be used more than 5 level precision bearing. Rust and corrosion: contact with water may cause corrosion damage of bearing elements and rust. Current: bearing rotates the electricity may result in a groove or notch. Eccentric, eccentric, tilt, or excessive load may result in geometrical stress concentration or surface spalling preventive measures: precision bearing seat, and shoulder the NTN bearing equipment preventive maintenance, operation and peripheral parts was removed when changing suspension bearing checking, discriminant times demand, in turn, can bearing parts can be used again and record the condition of using good from bad.