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Roller Bearing installation

Roller Bearing installation
Issue Time:2018-07-24

Roller Bearinginstallation

Whether thebearing is installed correctly affects the precision, life and performance.Therefore, the design and assembly department should fully study theinstallation of bearings. You want to install according to the job criteria.The standard operating items are usually as follows:

(1) cleaning ofbearing and bearing connection parts;

(2) check the sizeand precision of the connected parts;

(3) installation;

(4) inspectionafter installing the bearing;

(5) providelubricants.

It is hoped thatthe bearing package will not be opened until the installation is imminent.General grease lubrication, do not clean, directly fill the grease. Lubricantslubricated, also do not need to cleaned commonly. But high speed bearing using inequipment should be cleaned with clean oil and remove the antirust coating onthe bearing. The bearing without the antirust agent is easy to rust, so can notbe placed. In addition, bearings sealed with grease are not cleaned for directuse.

The method ofbearing installation varies with bearing structure, fit and conditions.Generally, the inner ring needs to be over-filled due to the rotation of theshaft. Cylindrical bore bearings always need to press in or use heatinstallation method. For tapered holes, install directly on the taper shaft orsleeve installation.

When it isinstalled into the shell, there is usually more clearance fit. The outer ringis overfilled, it is usually pressed by the press, or there is a method of coldshrinkage fit after cooling. Using dry ice as a coolant, the moisture in theair will condense on the surface of the bearing when it is cooled and fitted.Therefore, appropriate anti-rust measures are needed.