The installation process of bearings has a great impact on the service life of bearings, especially the preparation work before bearing installation, but also never slack off. This article will introduce some matters needing attention before bearing installation in detail, hoping to help you with your work.

Bearings should be installed in a dry, dust-free room as far as possible, and should be far away from metal processing or other equipment that will produce metal debris and dust. When bearings must be installed in an unprotected environment (which larger bearings often encounter), appropriate bearing measures must be taken to protect bearings and related components from dust or moisture pollution. Until installation is complete, for example by covering or wrapping bearings and related parts with wax paper or foil.

Before installation, prepare all necessary parts, tools, devices, and related data. Also study drawings or instructions carefully to determine the correct sequence of installation of different parts. Careful examination, shaft, bearing, seal and other parts of bearing configuration, to ensure that the mating surface clean and good, but should also check special screw holes and grooves, ducts, to prevent being some processing residues, the casting of bearing seat, shall ensure that no core sand on the surface of the some without machining, in addition to all the burr.

Check the size and shape tolerances of all components in the bearing configuration. The relevant components must reach the required accuracy and conform to the specified tolerance range, so that the bearing can play its due performance. The diameter of cylindrical journal and seat hole is generally measured by micrometer or inner diameter micrometer at two cross sections and four different positions. The taper of the journal can be measured by circumferential, special taper gauges or sine gauges.

If there are iron filings, burrs, dust and other foreign bodies in the bearing, it will cause noise and vibration in the operation of the imported bearing, and even damage the raceway and rolling body. So before installing bearings, it is necessary to ensure that the installation surface and installation environment are clean.

Bearing surface coated with anti-rust oil, you must use clean gasoline or kerosene carefully clean, then coated with clean quality or high-speed high temperature lubrication grease can be installed and used.

Cleanliness has a great influence on bearing life and vibration and noise. But it is particularly reminded that fully enclosed bearings do not need to be cleaned and refueled.

Lubrication has a very important effect on the operation and workinglife of bearings. We briefly introduce the general principle of grease selection. Grease is made of base oils, thickeners and additives. Different types and different brands of grease of the same type differ greatly in performance, and the allowable rotation limit is different, so be sure to pay attention to the selection.

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