Double row self-aligning roller bearings should be cleaned before installation, used after drying, and ensure good lubrication. Bearings are generally lubricated with grease, but also can be lubricated with oil. Grease lubrication, should be used without impurities, oxidation, rust, extreme pressure and other superior performance of grease. The filling amount of grease is 30%-60% of the bearing and bearing box volume, not too much. Double-row self-aligning roller bearings with sealed structure are filled with grease and can be used directly without cleaning.

When the interference is large, oil bath heating or inductor heating bearing method can be used to install, heating temperature range of 80-100 degrees, not more than 129 degrees. At the same time, the application of nuts or other appropriate methods to tighten the bearing, in order to prevent the bearing cooling after the width direction of the contraction and the gap between the ring and the shaft shoulder.

The following four points should be noted:

(1) Attention must be paid to making the installation and disassembly of bearings simple, saving labor, time and expense.
(2) The free-end bearing must be able to adapt to the length change of the shaft and the bearing seat hole, that is, it must have the ability to swim in a certain range to adapt to the axial position.
(3) The ring can not slide along the tangent direction in its mating surface, otherwise it will damage the mating surface.
(4) The circumferential surface of the bearing ring should be well supported and uniformly stressed to reduce deformation and give full play to the bearing capacity.