Tapered roller bearings are separable bearings, bearing inner and outer rings with tapered raceways line. These bearings are mounted on roller rows into single row, double row and four row tapered roller bearings, such as different structural types. Single row tapered roller bearings can bear radial load and axial load in one direction. When the bearing radial load
2013年8月8日星期四
will reduce the double row deep groove ball bearing life.
Temperature often represents a double row deep groove ball bearings in unusual circumstances, high temperature also harmful in the double row deep groove ball bearing lubricant, and sometimes double row deep groove ball bearing overheating can be attributed to double row deep groove ball bearing lubricant If the double row deep groove ball bearings in more than 125 degrees Celsius long run, will reduce the double row deep groove ball bearing life.
High double row deep groove ball bearings causes of damage include: lack of lubrication or excessive lubrication, the lubricant containing magazine, the load is too large, double row deep groove ball bearing damage, lack of space, and the heat generated by friction seals and so on.
Double row deep groove ball Crossed tapered roller bearing rolling elements and the inner and outer raceway surfaces are exposed to periodic pulsating action of the load, resulting in a periodic variation of contact stress. When stress cycles reaches a certain value, the rolling elements or inner, outer ring raceway fatigue spalling on the work surface. If double row deep groove ball bearing load is too large, this fatigue worse. In addition, double row deep groove ball bearing is not properly installed, the shaft bent, will produce raceway spalling. Double row deep groove ball bearing raceway fatigue spalling will reduce shaft running accuracy, enables organizations to vibrate and noise. Adhesion of the metal cage on the rolling elements, may cause the rolling body is within the card in the holder or insufficient lubrication.
Burns its double row deep groove ball bearing raceways, rolling on the temper color. The reason is usually burns insufficient lubrication, oil quality does not meet the requirements or deterioration, and the double row deep groove ball bearing assembly tight and so on.
Double row deep groove ball bearing raceway and roller contact surface uneven pits, indicating double row deep groove ball bearing plastic deformation. The reason is that double row deep groove ball bearings in a large static load or impact loads, the working surface of the local stress exceeds the material yield limit, which generally occurs in low-speed rotation of the double row deep groove ball bearings.
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