2012年11月8日星期四

Note the installation and use of the imported bearings


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The bearings are precision components, and its use should also be carefully carried out. No matter how high-performance imported bearings, if used improperly, it will not be the expected high performance. Bearing use what is it? Bearing should note the following: steel ball bearing
1, to maintain of bearing its surrounding clean.
Even the small dust of the eyes can not see, will a bad influence to the bearing. So to keep the surroundings clean, so dust will not invade bearings.
2, careful use of imported bearings in use given bearing a strong impact, will produce a scar and indentation, an accident. Severe cases, it will fracture, fracture, and so must be noted.
3, using the appropriate operational tools
Avoid replaced existing tools, you must use the right tools.
4, pay attention to the corrosion of the bearings
The operation bearing, hands sweat will become rusty. Pay attention to clean hands operation, it is best to try to wear gloves.
Bearings Installation
Many users know the bearings, but for the bearing mounting method but does not fully understand the instal lation of good or bad, will affect the accuracy of the bearing, the life and performance. Therefore must fully research the bearing installation methods, installation, specific methods is recommended that users in accordance with operational standards, including the following items: roller bearing co
a press-fit
Bearing inner ring with the shaft so that a tight fit, the outer ring and bearing holes than a loose fit, available presses will be imported bearings be pressed onto the shaft, then the shaft together with the bearing load bearing hole pressure mounted , a soft metal material of the pad assembly sleeve (copper or soft steel), the end face of the bearing inner ring assembly casing diameter should be slightly larger than the journal diameter, outside diameter diameter should be slightly smaller than the bearing inner ring ribs to avoid pressure on the retainer. The bearing outer ring and bearing ho le is a tight fit, the inner ring and the shaft for the bearing to be pressed into the bearing hole than loose fitting, then assembled the outside diameter of the casing should be slightly smaller than the diameter of the housing bore. Ring and the outer ring of the bearing rings and the shaft and the housing bore is a tight fit when installed indoor pressed into the shaft and the housing bore, to The assembly casing structure should be able to charge tight end face of the bearing inner ring and the outer ring.
New bearings in general it is best to disassemble cover fuel, without oil can also be used, but not a long time. Bearing the refueling best plus molybdenum disulfide lithium grease, because of its high temperature, wear. Calcium grease is not high temperature phased out, plus the best time to clear the original oil bearing. Motor bearing is best not to exceed 70 degrees, especially high-speed bearings, high-speed loss greatly, often refueling for gearbox prefera bly not more than 60 degrees, because the inside of the gearbox with oil lubrication, the highest summer temperature is 60 degrees . Pump bearing is preferably not more than 65 degrees. ball screw bearing

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