How to replace bearings on a hammer drill and their lubrication

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As soon as the integrity of the retaining ring is damaged, the entire cartridge with all its components - protective cover, balls, rollers, springs, etc. - falls apart during operation.p. It is not difficult to repair a hammer drill with your own hands when the cartridge flies off. To do this, you need to place all the elements in their places, and then fix everything with a new locking ring. To install the locking ring, you will need to use special devices - round-nose pliers.

The hammer drill has not only a "drunk" bearing, but also regular ball bearings on which the electric motor anchor is centered. The bearings that ensure the rotation of the anchor shaft need regular lubrication. The skew bearing italy telegram data should also be lubricated, otherwise it can accelerate its wear.When installing drills and other attachments, it is necessary to lubricate their shanks, which will extend the service life of the chuck components, which include locking balls or rollers, depending on the chuck type.



To dismantle bearings for replacement, you will need to use a special tool called a puller. Installing new bearings is done using a tube of the appropriate size and a hammer. When installing new devices, you must also take into account one factor - they should not be skewed relative to the rotor shaft. How to change a drunken bearing is already known. On barrel drills, instead of a drunken bearing, a crankshaft can be installed, which has a longer service life, compared to an analogue on straight units.

This is interesting! If you compare the cost of barrel models with impact mechanisms - a drunken bearing and a crankshaft, the latter are more expensive, which is due to their efficiency and reliability.However, this does not mean that models with floating bearings are not effective. They have a slightly shorter service life, but also have high impact efficiency.