How quickly and easily can a sealed bearing be lubricated without disassembling it

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Most owners and craftsmen, if necessary, simply change the old closed-type bearing for a new one. However, there are times when such waste is not a smart move. The only problem is that most people do not even imagine how to lubricate such a detail without disassembly. Moreover, if you try to remove the protective ring in the bearing, it will most likely be broken.

We wash the bearing and insert it into the workpiece

What you need: vacuum cleaner, grease gun, compressor and blow gun, screwdriver, clamp vise, solvent, silicone grease

First and foremost, you need to flush. We remove all remnants and traces of the old lubricant from the part, after which we place the bearing in a glass with gasoline or solvent. We chat with them in liquid until all the dirt is washed out. Next, you need to take a wooden block and, using a suitable drill, drill a depression in it for the bearing, which is connected on the back side with a through hole for a blower gun. We insert and fix the bearing into the workpiece, after which we carry out a thorough purge.

We fix a wooden blank with a clean and blown bearing in a vice. The hole in the bearing must be closed with a wooden sharpener. Next, a screwdriver with a straight slot is taken, and with its help, grease is abundantly applied to the bearing. A thin hose is connected to the bottom hole, which connects to the vacuum cleaner. The unit turns on and draws grease into the bearing. The entire described procedure (without cleaning) is repeated several times.

Alternatively, an attempt may be made to lubricate a closed and already cleaned bearing with an injection syringe. The bearing is placed in the already familiar blank, and its hole is closed with a wooden plug. The syringe is placed on the side of the workpiece where the smaller hole was made. Further, pressing and filling the workpiece with the bearing with grease is carried out. We press until the substance comes up from the back side. The lubricated bearing is carefully removed, wiped clean and used for its intended purpose.