Product Description
Selection of bearing specifications:
1, determine the bearing diameter size.
Docking is required, and the user wants to provide interface drawings better when the installation holes are machined on the machine in advance. Another point, please pay special attention, the distance between mounting holes on bearings is fixed, so users should pay attention to the position when determining the outer diameter.
2. Determine the inner diameter of the bearing.
If the user requires comparison, it is better to indicate the error value or provide drawings in the order contract.
3. Determine the type and quantity of bearings. There are two kinds of bearings commonly used:
4. Determine the accuracy level. Any manufacturer's products will be marked with precision grade, while some manufacturers are more scientific in marking, and generally adopt letters of the grade name, such as ordinary grade standard N, standard H and precision grade standard P.. Accuracy is a comprehensive concept, which generally consists of straight line error, combined height error, width error from bearing side to slider reference side, paired height error and paired width error. For most industrial machinery, the ordinary precision can meet the requirements, and the higher one is H, while the numerical control machine tools and other equipment are P, and other ultra-precision machinery is better to choose SP (super precision) and UP (precision). The latter three grades require harsh installation and use conditions to show their performance.
5. Determination of other parameters In addition to the above four main parameters, there are some parameters to be determined, such as combination height type, preloading grade load, weight, etc.
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