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How to drill a bearing

Hello! I decided to show a carbide drill test, which can be purchased at about $ 1. It is popularly known as a “feather” (feather drill) and is intended originally for drilling tiles and tiles. In practice, it is already known that such a drill copes well with stone, concrete, glass.

You can buy on Ali for half a dollar and a bowl - .

How to drill a bearing

It also copes well with high alloy steel. For example, drilling a file with a thickness of 5-8 millimeters with such a drill is not a problem.
I decided to give the problem more difficult, to drill a hole in the ball from the bearing, with a diameter of 35 millimeters.

Drill the ball from the bearing


Securely fasten the ball of the bearing in the tees of the drilling machine. We fix a feather drill in the boss.
How to drill a bearing

First, start drilling without lubrication. The drill throws a little from side to side. Strong pressure is not worth it.
How to drill a bearing

After the drilling point is full, add oil and continue drilling. Now you can slightly increase the pressure force. In general, you need to do everything carefully and without rushing.
How to drill a bearing

We periodically raise the pan and add oil to the hole.
How to drill a bearing

We continue to drill the bearing.
How to drill a bearing

Almost reached the end, and shavings sprinkled from below. A little more and the drill will go right through.
How to drill a bearing

The result is a through hole in the ball.
How to drill a bearing

How to drill a bearing

How to drill a bearing

Here is such a simple technology for drilling hard alloys, hardened steel or even tool steel.
How to drill a bearing

Of course, such questions do not often arise in life, but there are still cases.
Especially if you need to drill concrete with reinforcement inside, then I recommend doing this with just such a drill. Since it will drill well both concrete and reinforcement inside it.
The price is quite acceptable in China at least. Sometimes domestic counterparts are criticized, but personally, I always try to take a foreign instrument, so life experience shows that it is necessary to do just that.
See you friends!

Watch the video


See a good example in the video.
come back
Comments (4)
  1. Egor
    #1 Egor Guests 11 june 2018 19:06
    0
    Here is such a simple technology for drilling hard alloys, hardened steel or even tool steel.

    Mislead. Correctly will be "Red-hot steel, tool steel or even hard alloy!"
    1. Guest Alex
      #2 Guest Alex Guests June 14, 2018 16:31
      2
      I agree with everything except carbide. His "feather" is no way, because the plate in it is from that same hard alloy ...
    2. Basil
      #3 Basil Guests April 14, 2019 04:53
      0
      That you are misleading. Everything is indicated correctly, a quick cutter (aka hss) is tool steel (you probably meant it), in the usual version (cutters, drills, taps), red-hot. And also here we add U8, HVG, etc.
      A hard alloy is tungsten carbide, you can’t drill such garbage (hardness just below diamond), processing is possible only with abrasive (diamond, as a rule), erosion and superhard materials such as cubic boron nitride (with creak) or diamond.A hard alloy (some alloys, at least), can be processed and hot tool steel.
  2. Guest Nicholas
    #4 Guest Nicholas Guests July 1, 2018 20:57
    0
    I won’t believe it until I check it.

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