What are the Mounting Methods of Bearings?

Bearing rings and rolling elements have high machining accuracy. In order to ensure the accuracy, life span and main performance of the bearings, proper methods and procedures as well as appropriate tools must be used. It has been proved that improper bearing mounting is often one of the main reasons for early bearing damage.

First of all, the mounting method of the bearing should be determined according to the type of structure, size and nature of the fit. The commonly used mounting methods for bearings are pressure method, temperature difference method and hydraulic method. Generally speaking, the mounting of bearings can be divided into two categories, one of which is the mounting of cylindrical hole bearings and the other is the mounting of tapered hole bearings.

1. Cylindrical bore bearing installation: cylindrical bore bearing installation, according to the requirements, you can choose to use the pressure method, temperature difference method and hydraulic method. Pressure method is suitable for small and medium-sized bearings with small amount of interference, temperature difference method is suitable for a large amount of interference, or in the process of use need to make several times to install and dismantle or replace the bearing occasions; hydraulic method is suitable for a large amount of interference, installation and dismantling more times of medium and large bearings. Installation process, bearing clearance can be adjusted through the end cover, adjusting ring, threaded ring, lock nut, washer and other methods, can also use the micrometer through the measurement of bearing axial clearance to indirectly ensure that the radial clearance in the qualified range.

2. Tapered hole bearing installation: directly installed in the tapered journal tapered hole bearing, can use pressure method or heating method installation, can also use the locking nut installation. Tapered bore bearing with tightening sleeve or releasing sleeve, generally using lock nut installation. Installation process, you can control the bearing pressed into the tapered fit surface of the axial distance to adjust the radial clearance of the bearing, for the commonly used 1:12 standard taper, bearing in the taper on the axis of the movement of about 15 times the amount of radial clearance reduction. For non-separable type bearing, available plug gauge measurement, separable type bearing, available outside diameter micrometer measurement of the inner ring expansion, to replace the radial clearance reduction.

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