INA set-contained spherical ball bearing common failure matters needing attention are introduced

Refers to the relative sliding friction between the surface abrasion failure lead to constant wear and tear of the working surface of the metal and the failure. Continuous wear will cause INA bearing parts damaged gradually, and ultimately lead to insert ball bearing unit size accuracy loss and other related problems. Wear may affect the shape change, the increase of fit clearance and working surface morphology change, may affect the lubricant or make its pollution to a certain degree of lubrication function is lost, so that loss of bearing rotating accuracy and will not operate properly. Wear failure is one of the common failure modes of all kinds of imported bearings, according to the wear and tear is usually divided into one of the most common form of abrasive wear and adhesive wear. 1 installed, must ensure that the surface and the environment clean, if the insert ball bearing unit content burr, iron filings, dust and other foreign matter to enter, can make the bearing running noise and vibration, and even damage raceway and the moving body. 2. Before installation must clean INA bearing, due to the bearing before they go out, in order to protect the surface of raceway and move element is not rust, between race and move the body into the anti-rust oil or antirust grease. So, it is necessary to clean with clean gasoline and kerosene, besmear again clean and high quality or high speed high temperature lubricant can be used. Nothing more than, some full sealed bearing and coated with lubrication rust dual-purpose oil import bearings, is not need to be cleaned. Cleanliness of bearing life and the influence of the length of the vibration noise often large. 3. Want to choose accurate grease. Grease made out of base oil, thickener and additive, different types and species difference in function of different type of grease, promised to the rotation of the limit, and the function of the grease is also determined by the base oil, thickener and relationship between the function of lubrication, thickening agent of water resistance to the water resistance of the grease. The basis of generally low viscosity oil used in low temperature, high speed; Used for high temperature, high load of high viscosity. Different brands of grease can not be mixed, and even the same thickening agent of grease, will also bring bad influence each other on the basis of different additives. Work of abrasive wear refers to the bearing surface between into hard foreign matter or foreign solid particles or abrasive dust on the surface of the metal caused by the relative movement and the contact surface of wear, often cause furrow of abrasion in bearings working surface. Hard particles or other foreign body may come from inside the host, or from the host system adjacent parts by lubricating medium sent to insert inside the spherical ball bearing. Adhesive wear refers to the because of the friction surface microscopic bumps or foreign bodies make the friction surface is uneven, serious deterioration, the condition of lubrication for local friction heat production, easy to cause local deformation and friction surface friction welded phenomenon, serious when the surface of the metal may be the partial melting, contact surface forces from the local friction welding points on the matrix will be torn and increase the plastic deformation. This kind of adhesive - — Tear - — Adhesive cycle constitutes the adhesive wear and tear, in general, mild adhesive wear is called a scratch, serious adhesive wear called occlusion.