Power tool

Very often, home craftsmen are faced with the problem of failure of hand-held power tools - drills, grinders, perforators, etc. The most common failure is the destruction of the bearing in the engine. This happens because of improper operation (failure to comply with the mode of operation, the duration and magnitude of the loads) or storage (dusty and dirty boxes, rooms) of the instrument. Also, do not forget about regular preventive maintenance - only when it is carried out, manufacturers guarantee the durability of the power tool, and, unfortunately, many people ignore this point.

The first symptom of a malfunction is increased noise when the power tool is running. It arises as a result of the fact that the destroyed bearing knocks down the centering of the armature, and the latter begins to come into contact with the stator of the engine. Here it is important not to delay the change of bearing, otherwise the risk of completely “killing” the tool increases.

If you decide to replace the bearing yourself, you should remember a few important points.

• Bearing cap should be the same as in the original - either a rubber plug or a metal washer. In no case should it be subjected to deformations (pressure or impact) in order to prevent rolling elements from falling out.
• When dismounting the bearing, it is recommended to use a special puller in order to avoid shaft curvature.
• After dismantling, the bearing installation site and the entire tool should be cleaned, removing dust, dirt and other contaminants.
• During the installation of the bearing, it is important to transmit forces through the bearing ring, which rotates in order not to deform the bearing itself.
• Before installation, the bearing should never be opened and additionally lubricated - it has a quantity of lubricant sufficient for the entire lifetime. This is a strict requirement made by all manufacturers, regardless of the price category of the bearing.

And, of course, you should not forget that a cheap bearing, no matter how carefully it was installed, is unlikely to work at least half the service life of a more expensive one.

You can choose the bearing you need on the website of the company VPK Podshipnik, using the convenient search in the catalog or selecting it in size. A wide selection of brands will allow you to choose the most suitable.