Choose a suitable reducer bearing

How to choose a suitable reducer bearing, you need to do this, on how to choose the brand and type of bearing, and the introduction of related. However, some common feelings about bearing often overlooked or ignored. Most of the time the use of the bearing plays a very important role. The space is large USES the lubricating oil splash lubrication, the space is little use grease. 1, bearing ( 轴承) It is a kind of important parts in the modern machinery and equipment. Its main function is to support the mechanical rotator, reduce the coefficient of friction in the process of the movement, and guarantee its rotation accuracy. 2, according to the movement components different grinding quality, bearing can be divided into two categories, the rolling bearing and sliding bearing. The rolling bearing is standardization, seriation, but compared with sliding bearing radial size of it, the vibration and noise is bigger, the price is higher also. 3, rolling bearing is generally composed of outer ring, inner ring, rolling body and keep the frame of four parts. According to the shape of the roller, the rolling bearing can be divided into two types: ball bearings and roller bearings. What is the life of the bearing? In a bearing, the tip of one of the material or material of rolling shows that fatigue for the first time, a set of rings relative to another revolution known as the bearing life. Due to the manufacturing precision, material uniformity, etc. Even if the same material, the same size and made in the same conditions of the same batch of bearing will also has a very different life. 2. What are the main failure modes of rolling bearings? Mainly includes: caustic corrosion, deformation, abrasive wear and adhesive wear and corrosion, bearing burn, etc. 3. How much is the bearing of the basic life? According to 10% of the bearing in the bearing group feed corrosion, while 90% of bearing in the pitting corrosion damage ( Millions of turn) Or working hours before no RPM as bearing of life, this life is called primary life, said the l10. 4. What is the main dynamic bearing capacity bearing? When foundation bearing life just to one million RPM, bearing carry load value as bearing the basic dynamic load capacity, expressed in C. Radial bearing by means of Cr said net radial load; Thrust bearing, it is to point to by Ca said pure axial load. 5. What is the equivalent dynamic bearing load? If rolling bearing under radial and axial load combination under the same conditions to calculate the bearing life, the actual load must be converted to the corresponding equivalent dynamic load and load conditions, to determine the service life of the calculation of the basic dynamic load. By P. 6. Why rolling bearings shall be designed for static load? Static load when the bearing ring is relative rotation frequency is zero or relatively low rotation speed effect on the bearing load. In order to limit the excessive contact stress of rolling bearing under static load and permanent deformation, need to carry on the static load is calculated.