The use of vibration or vibration isolation device to reduce the NSK bearings noise or isolation bearing noise, can get better effect, but it is often economically costly, sometimes make the mechanism become larger, cooling condition will become worse, or easy to rust, comprehensive consideration should only take use of, still can′t after reaching low noise index to use this method in which he measures.
The installation space bearings can accommodate to NSK bearing installation bearing space inside the plastic because of the design of shafting on shaft rigidity and strength, so the general first determine the shaft diameter, the inner diameter of the bearing. But there are various dimensions and types of bearings, should choose the most appropriate type of bearing.
Load capacity load bearing load magnitude, direction and nature (bearing represented by Po the rated load, its value is contained in table bearing size) bearing load variations, such as whether the size of the load, only the radial load, axial load is a one-way or two-way, the degree of vibration or shock. After considering these factors, and then to select the most appropriate type of bearing. In general, the radial load capacity of NSK bearing the same diameter of the increment in the following order: deep groove ball bearings (angular contact ball bearings (cylindrical roller bearing (tapered roller bearings (spherical roller bearing.
Speed can meet the bearing type (bearing speed mechanical speed limit of the benchmark for speed limit, its value is contained in the limit speed table bearing size) NSK bearing not only depends on the NSK bearing type, size is limited to the bearing cage type, precision grade, load condition and lubrication way, therefore, must be considered when choosing these factors. The following bearings are mostly used in high speed rotation: deep groove ball bearings, angular contact ball bearings, cylindrical roller bearings.
The rotating precision, size and rotation precision bearing type (bearing rotation accuracy is required by GB on a bearing type standardized) machine tool spindle, gas turbines and control machines respectively high rotation accuracy, high speed and low friction, you should use 5 levels of precision bearing more than. The general use of the following: deep groove ball bearings, bearing contact ball bearing, cylindrical roller bearing.