Notes on the bearing and the installation method

Bearing and general machinery parts, because of its manufacturing precision is very high, in has certain requirements for installation, if not very attention, it will cause damage to the bearing, do not get the normal service life of bearing, can also lead to the breakage of the related parts. In general, the accident caused by the bearing is caused by improper installation and use of non-standard, so, if you can in the correct method of installation and use, can improve the service life of bearing. 1, the work should be attention when installing a bearing, the most important thing is to maintain the cleanness of bearings and related parts and the correct use of installation tools and methods. , therefore, be sure to comply with the following considerations: 1, clear assignments section, auxiliary tool cleaning tools or homework. 2, when installation should use plastic auxiliary tool of good is not easy to fall off. 3, confirm all assembly parts for the products. 4, bearing to use can be unsealed. 5, homework should maintain the cleanness of the bearing. 6, in general, rust-proof oil doesn't have to wash, can be installed in accordance with the original state, such as the need to install the lubrication oil, use gasoline to clean the ointment on the bearing, then air gun to blow clean. 2, the inspection work before the installation - bearing bearing before installation should note: 1, the shaft and bearing body size and processing according to requirements of the drawings? Shaft, bearing the corner Angle and right-angle have protruding, whether can complete contact with the bearing face? All must do full inspection. 2, be sure that the mating surface of shaft and bearing body are hurt, bumps, etc. If there is a dust or sand mold is attached on the surface bearing shell. If you have to millstone and fine sand paper or a clean cloth to remove oil. 3, in order to avoid bruising, during installation on the shaft and bearing body of the surface of the work should be a small amount of lubricating oil. 3, the installation of the bearings - applying surface and the method of applying bearing installed on the shaft when applying pressure on the inner ring, installed on the bearing body, applying pressure to outer ring. Note: the bearing installed on the shaft, do not knock outer ring, installed in the bearing body, shall not be banging on the inner ring. If you have such operations will make bearing rail surface scars, damage to noise and early detachment fault, affect the bearing life. Applying pressure to the bearing, be sure to be careful to evenly, vertical force and partial play will make bearing were injured. To this end, absolutely avoid partial. In addition, nor to the bearing cage and applying pressure seal plate. 4, the installation of the bearings - use a hammer and installed with a hammer and casing pipe installation method, is a commonly used method, be sure to as shown in figure, tapping in, make the socket interface in the middle and the hammer should be tapped on. 5, the installation of the bearings - inside and outside the ring installation at the same time on the mechanical structure, inner and outer ring are tight fit, you should use plate, make sure power can also add in the inner and outer ring tap into it. If only applying force on the inner ring, the force will be through the ball and pressed into the outer ring, therefore, can cause scars in the orbital plane. 6, rolling bearing assembly concluded a. Must wash all dirt on bearing before assembly. b。 Put bearing on the shaft, the pressure will be put in the inner ring of bearing installation, the bearing load bearing body or suspension ( ) Added stress on the outer frame. c。 Pressure or when using a copper bar into, should make the clamping force and the force evenly distributed on the whole face of the bearing inner and outer ring, should not keep the power on or beads, at the same time also should not make the hammer blow directly bearing face, to avoid bruising, smashing bearing. 【 Cold loading, hydraulic loading, the use of auxiliary tools are casing, hydraulic device 】 。 d。 When installing bearings, must pay attention to the surrounding environment, prevent the dust dirt into the bearings. After loaded bearing, should immediately put the bearing protection ( Closed) To get up. e. After bearing pressure, must check the rotation of the rolling bearing flexibility. f。 Rolling bearing and the shaft or housing, cooperate, although is interference or transition fit, but considering structure and bonding strength of the parts, need to adopt heating or cooling method for assembly, general ( SKF) Heating shall not exceed 110 ℃.