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Bearing professor teaches you to look at and deal with INA bearing problems
Source: China Bearing Network Time: 2014-01-21
| /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089'; |
In the appearance of the bearing; the first variety of cracks and wear is the simplest view; such scars will make the bearing not properly installed; then lead to excessive eccentric load; these scars will also make the bearing in normal use; work The bearing is broken and the like. The bearing appearance also presents a skin appearance; this condition is mainly caused by the weak connection between the part and the base metal; no matter the appearance of the problem, the rotation precision and service life of the bearing will be made. Lowering.
Second, we must pay attention to the following aspects of INA bearings:
1. Alignment function of INA bearing: When the middle line of the shaft does not coincide with the middle line of the bearing seat and there is a point of view error; or when the shaft is bent or skewed due to the force of the shaft; the axis of the inner ring of the bearing will be skewed. At this time; should use the self-aligning ball bearing or SKF spherical roller bearing with certain aligning function. This type of bearing can still have a normal mission when there is little relative deflection in the axis of the ring.
2, INA bearing speed: in the general speed; the speed of the bump on the type of selection does not occur ;; as long as the speed is higher; will have a significant impact. Bearing samples include various types, The limit speed value of bearings of various scales. This speed means that the load is not too large (P ≤ 0. 1C; C is the dynamic load rating of the base); the cooling condition is normal; and the maximum allowable speed when the bearing is a 0-level tolerance bearing.
3, INA bearing load: when selecting the bearing type according to the tendency of the load; about pure axial load; generally use thrust bearing. Smaller pure axial load can choose thrust ball bearing, larger pure axial load can choose thrust Roller bearings. Cylindrical rolling on bearings and needle bearings is the most sensitive to the deflection of the bearings; the bearing capacity of these bearings in the skewed shape can be lower than that of the ball bearings. Therefore, the rigidity of the shaft and the bearing stiffness of the bearing housing hole are better. When low; should try to prevent the use of such bearings.
In addition to the previous view of the INA bearing device; the bearing trading network bearing professor also suggested that we should pay attention to the important punctual INA bearing view; to solve the problem in advance to find the problem; to prevent the appearance of the stop.
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