Installation techniques and matters needing attention of one-way bearing

TIMKEN bearing short-lived or premature loss of accuracy, to a considerable extent is because there is no one-way bearings used in strict accordance with the requirements for installation. In order to guarantee long life of bearing, we should pay attention to the common problems in the installation. 1, must ensure that the installation surface and installation environment clean, if the content of the one-way bearing burr, iron filings, dust and other foreign matter to enter, can make the bearing running noise and vibration, and even damage raceway and rolling body. 2. Because before installation must clean the TIMKEN bearings, one-way bearing, before they go out in order to protect the surface of raceway and rolling element is not rust, between the raceway and rolling body injected with anti-rust oil or antirust grease. So, you must clean with clean gasoline and kerosene, besmear again clean and high quality or high speed high temperature lubricant can be used. However, some closed bearings and coated with rust of dual-purpose oil lubricating bearing, it is not need to wash. Cleanliness of bearing life and the influence of vibration noise is very big. 3. Choose the correct grease. Grease made out of base oil, thickener and additive, different types and different type of same kind grease properties vary widely, allowing the rotation of the limit, and the performance of the grease is also determined by the base oil, thickener and relationship with lubrication performance, thickening agent, water resistance to the water resistance of the grease. The basis of generally low viscosity oil is suitable for low temperature, high speed; High viscosity is suitable for high temperature, high load. 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. Can use induction heater to heat the advantage: fast, reliable, clean the bearing heated to the required temperature, due to the heated just within the circle, and the outer ring so little heat, so that can be easily installed on the shaft, also easily into a hole. 1. Heating temperature to control good, high temperature damage about the TIMKEN bearings, temperature is low enough ring expansion, the effect is not significant. 80 ~ 1000 ℃ heating temperature of the thermal expansion of the inner ring diameter, this to have the bearing of the over surplus quantity of the ordinary, is enough. 2. Once the required heating temperature is reached, will be as soon as possible for installation, in order to avoid the cooling and installation difficulties. 3. Action requires skilled, quick and accurate. One-way bearing during cooling in the width direction also have shrinkage, therefore when installation to a certain pressure inner ring to the shoulder pressure, and with a very thin feeler attempt after cooling test, whether inside the gap between end face and shoulder. Bearing need to be heated, you can refer to the above method. In the heating process must pay attention to control temperature, to ensure normal installation of TIMKEN bearings.