Tapered roller bearings are suitable to withstand radial load-oriented combination of radial and axial load, usually with two sets of paired bearings, mainly on the front and rear wheels of the car, the active cone transmission parts such as gears, differentials, gearbox. Running on the machine needs to be checked, the bearing is the focus of attention, and prepare a thorough examination programme has become more and more important. Because it is all part the most important condition monitoring of rotating machinery to prevent the SKF bearing damage, repair equipment to prevent unplanned downtime early detection of bearing damage caused during an important part of the home.
Smooth melodious voice, high-pitched squeaking noise may be due to improper SKF bearing clearance caused by lack of lubrication can also cause metal sound. Notch on the bearing outer race track will cause vibration. If percussion scars caused by the devices generate noise, this noise SKF bearing different speed levels. If you have intermittent noise, and scroll through the parts may be damaged, the sound occurs when damage to the surface of launch dates, if bearing hissing "sound pollution often cause serious damage to the bearings and noise caused irregular.
Good lubrication for spindle-bearing interface between a uniform oil film, and start or stop the movement of spindle oil film is not damaged under impact load, good lubrication to reduce friction and frictional heat, lower the spindle temperature rise, to ensure accuracy, requires a good lubricating properties. Suitable of stick degrees and good of stick temperature characteristics for make machine spindle temperature not high and make machine occurred hot variant, effect processing precision or make bearing lubrication bad, should according to spindle bearing structure, and speed and the bearing gap, selection suitable temperature of lubricant and requirements its has good of stick temperature characteristics, prevent due to spindle work temperature and the environment temperature changes larger Shi, stick degrees of changes had large and effect its lubrication performance.
At the beginning of SKF bearings, should use the appropriate measurement tools according to design drawings, technical requirements, check the shaft and hole as well as the machining quality of parts (such as precision, accuracy and surface roughness). Mounting surface should be clean gasoline, kerosene, toluene or xylene solution cleaning clean, wipe dry with a clean cloth, and then coated with a thin layer of lubricant, this makes the installation more convenient.
Chung-click install, use copper rods and hand-this is an easy way to install small and medium sized SKF bearings. When the bearing inner ring is tight fit, when for a loose fit in the outer ring, copper bar close to the inner ring of the bearing surface, with a hammer directly strike the copper rod, leaving a copper rod, slowly put the bearing on the shaft. The bearing inner ring is large, the available copper rod evenly around banging along the inner ring of the bearing surface, must not only beat, or too much force, symmetry, and beating slowly loaded onto gently, so as not to put slice split bearings.