Motor bearing a why wear?

Motor bearing wear root cause: ( 1) Machining accuracy: according to the interaction among components, and its heat treatment on the surface of the shaft, the machining accuracy of shaft system are the fundamental functions. Generally speaking, the shaft surface smoothness, the higher the value, circle, with the bearing inner surface of the greater the degree of mutual cooperation, mutual matching surface tolerance is more symmetrical, with a total area of the smaller the tolerance, can be reasonably slow interaction on the surface of brittle fracture. And heat treatment on the surface of the shaft is critical, moderately shaft surface strength and ductility, can be reasonably sure axis' use. Shaft and motor bearing inner hole in the middle of the mutual cooperation generally adopts the transition fit, if too much clearance fit, the gap is too small, very easy to cause the bearing oil bearing burning, increase the bearing wear; If interference quantity is too small, so the bearing inner hole and shaft are very easy to produce relative speed, lead to both axial and radial wear on the shaft, and high precision machining precision is also decided to shaft system are one of the key elements; （ 2) Component fatigue wear, fatigue wear cannot prevent metal materials, but can according to the maintenance of appropriate way to slow the fatigue wear of metal materials. On the basis of bearing materials and have different grade, ready to grasp the bearing conversion cycle time ahead of time. Bearing long-term operation, can not immediately moved around, its operation side gap will continue to improve, when oil gap expanded to a certain level, the vibration of the equipment will be along with the expanding. Machine vibration expand to each position will also be devastating harm, as into a polarized. And regularly check the bearing operation side gap is very important, work out effective bearing conversion cycle time; （ 3) Sealing is invalid: the status of the sealing invalid immediately caused a: grease leak, causing the bearing RunHua poorly; Second, external water and solid particles into the into the motor bearing, compound bearing, such as erosion and abrasion caused more serious when bearing wheel lock, burning; Burning bearing once happening, then the motor bearing part when it is heated, the temperature rising, and even a bearing inner hole and bearing surface melting consistent immediately on the spot, leads to the damage of article into the motor shaft; （ 4) Usual dimensional inspection does not immediately or dimension inspection way lack: d samples in the whole process at ordinary times, can't reasonable immediately find bearing noise and vibration caused by wear and tear to expand on the spot, will eventually because of bearing excessive wear or indirect immediately bearing wear. Above is today give you share the contents of the author, to learn more about bearing small knowledge, pay attention to the bearing's official website, give you to update different bearing small knowledge every day.