Rolling bearing is combination of supporting shaft rotation.The ring and roller are machined.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 the bearings before installation should be clean.Use anti-rust oil seal bearing can use petrol or kerosene directly cleaning;Or antirust oil in thick oil rust must be with light mineral oil, such as 10 # transformer oil heating oil or grease to melt cools, then clean with gasoline or kerosene.On both sides with dust cover or seal bearing, has joined the grease before they go out, so don't have to clean when install.Coated with antirust lubrication and oil bearing grease, installation also does not need cleaning.In the process of cleaning installation, should be protected from alien invaders into the bearing, caused by a tiny particle will wear between roller and raceway, noise and vibration.
Mainly through the two ways of bearing.One is to press the ring can be made into shaft or pressed into the bearing hole;One is through the heating bearing diameter enlarges, or cooling bearing outside diameter smaller, pushing bearing easily installed on the shaft or sit inside the hole.When using pressure mode, mechanical force or fluid pressure through special device will direct the force ACTS on comes down on the seat, never allow loading and unloading force through the transfer roller.Otherwise it will cause of raceway and rolling body surface indentation, increasing the noise and vibration that cause damage.If the heating or cooling method, the installation should strictly control the heating or cooling temperature.Because bearing strength on the surface of the work by metallography organization structure of the metal surface, temperature too high can cause tempering effect;Temperature bottom will cause on the surface of the metal embrittlement.Usually heating temperature shall not exceed 100 ℃, the bottom temperature cooling may not end at 50 ℃ below zero.Should also consider heat evenly.
Practice has proved that bearing improper installation is one of the causes of premature bearing damage.And the interference with the installation of the ring is a very difficult thing, so in the design of bearing, bearing must be considered how to problems and is convenient for installation.For heavy machinery of large bearing often need to design special equipment installation.Corresponding design is needed if high pressure oil removing oil, pipeline and pump, etc.
