Bearing limit speed than the raceway noise solution

Bearing limit speed than the raceway noise source solution: bearing | last updated: - 2020 10 - 19 bearing limit speed than the solution of the rolling bearing raceway noise limit speed ratio is under a certain load, RunHua standard allowable maximum speed ratio, and the load bearing types, specifications, size and location, the types of lubricants and RunHua method, the lateral clearance, keep steel frame structure and refrigeration standards, and many other elements. Factors that affect the limit speed ratio are: load size, load type and orientation, lubricants and RunHua method. Experience has proved that, to improve manufacturing precision of bearing, the modest increase in bearing clearance, selects the unique raw materials and structure of ball bearings, also can improve bearing limit speed ratio. Bearing temperature is caused by the following factors: the quality is not in conformity with the requirements of the grease or moldy, the high viscosity of the grease; The high viscosity of the grease. The high viscosity of the grease. The organization's compactness ( The space is insufficient) ； Organize the installation compactness ( The space is insufficient) ； One-way bearing compactness; Bearing seat ring on the axle shaft or the bearing or bearing on the shell shell on the compactness; Large load; Large load; Large load; Large load; Large load; Large load; Bearing ball bearings or ball bearings or ball bearings or ball bearing fracture, etc. The operation of the rolling bearings allow a slight noise. If you have any abnormal noise or excessive noise or tapping, have common faults of the bearing. Of the noise reasons of rolling bearing is very complex, is a bearing inner and outer surface damage. Due to the damage, destroy the interaction between different bearings and housings, and interaction between different axial unilateral bearing, caused by axial offset, appropriate to produce noise in high speed motion axis. When the bearing fatigue, can fall off the surface of metal materials, also can make the bearing axial space expand voice. In addition, the bearing lubrication is insufficient, produce dry friction, bearing grinding etc. Abnormal sound. Loose bearing damage, loose ball, also can cause damage of bearing noise. When rolling bearing disassembling inspection, but according to the bearing damage to distinguish the single bearing of the common faults and damaged. To put it bluntly work pressure stability is the compression spring pretightening, butterfly spring, give appropriate way of making load. In the application, even if the relative position of bearing change, loading way in advance. When it is applied in bearing sealing what kind? , it will and the relative position shift, load can also maintain. Read this article also browse: bearing standard specification and common problem 1, selection of bearings and shaft hole system, non-standard bearings and the mutual cooperation choose basic shaft casing. Standard tolerance and rotation accuracy of bearing shall conform to the gb307 - The requirements of 84. 2, the motor shaft in conjunction with the bearing and bearing box hole by GB1031 - 83, motor shaft surface roughness Ra value is lower than 1. 6 microns, bearing box in the hole surface roughness Ra value is lower than 2. 5μm。 3. Made of gcr15 and zgcr15 steel bearing ring and roller bearing, the strength of the sprocket wheel and the roller bearing should be 61 - 65HRC； When using gcr15simn and zgcr15simn steel, strength should be 60 - 64hrc。 The strength of the inspection methods on the same part and shall comply with the requirements of JB1255 strength. 4. Check the axial clearance of bearing and the radial clearance in accordance with GB4604 - The requirements of 84. 5. Bearing inner and outer ring raceway can not fall off, relatively serious damage to the bearing outer ring may not be broken, bearing outer ring shall not be broken, and shall not destroy the steel ball, shall not damage more serious distortion of bearing, can not have ball bearings, can not have ball bearings, must not have abnormal noise and rotational vibration, and must be at the end stop slowly. 6. For size tolerance for class C of tapered roller bearings, to a certain load, under the action of using coloring method to examine the roller bearing with sling ring raceway contact between accuracy and contact tag should be continuous, contact length should not be less than 80% of roller bushing.