Choose standard size, accuracy based on the use of parts and conditions of use and environmental conditions, with the right bearing is to ensure that the bearing life and the feasibility of the premise.
Use parts: Tapered roller bearings suitable for bear radial load mainly radial and axial joint load, usually paired with two sets of bearings, the main hub in the front and rear wheels of the car, active bevel gear differential , reducers and other transmission parts.
Permissible speed: to install properly oiled environment allows for the bearing speed limit 0.3-0.5 times. Under normal circumstances, the limit of 0.2 times the speed of most appropriate.
3, allows the tilt angle: tapered roller bearings generally not allowed axis relative to shell hole tilt, tilt, if any, does not exceed 2 '.
4, allowing the temperature: under normal load, and lubricant with a high temperature performance, and adequate lubrication under the conditions, usually bearing allows at -30 ℃ -150 ℃ ambient temperature.
Need to check on the machine running the state, is the focus of attention in the bearing, and to prepare a thorough inspection program has become increasingly important. Because it is the most important condition monitoring of rotating mechanical parts, to prevent bearing damage, to prevent bearing damage during the downtime caused by unplanned maintenance equipment early detection of an important part of the home.
But not all of the machines are equipped with this state-of-the-art equipment. In this case, the machine operators or maintenance engineers must adhere to the bearing fault signal alert.
 The smooth crisp sound, the the sharp creak noise may be due to improper bearing clearance caused by insufficient lubrication can also cause metal sound. The dent on the bearing outer race track will cause vibration. As for percussion scars caused equipment will generate noise, this noise bearing different speed levels. Intermittent noise, and then scroll part, may damage the sound appear, launch date, when the surface is damaged bearing hissing "sound pollution often cause serious damage to the bearings and cause irregular huge noise.
 But usually at this time, replacement of a bearing is not necessary. Therefore, the bearing damage, of course, by listening to the perception. Using better methods, such as electronic health monitoring equipment, bearing eruption before the operation.


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