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Bearing Steel Tube (52100): Drilled and Bored from Bar on the Lathe
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18. Ukwakira 2026NO
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Bearing Steel Tube (52100): Drilled and Bored from Bar on the Lathe

Bearing races are turned from 52100 tube. Factory tube is made seamless; in a workshop it can be drilled and bored from annealed 52100 bar on the lathe, which is our method here. Cut it soft: it is hardened only after the races are turned. The picture: our drawing, bar to tube.
Hagati
Half a day

Amabwiriza

1

Cut the blank

Saw a length of annealed bar a little longer than the tube you need.

Ibikoresho by'iyi ntambwe:

Umuhini w'icyuma cya roulement (52100)Umuhini w'icyuma cya roulement (52100)1 igice

Ibikoresho bikenewe:

Umucumita w'IbyumaUmucumita w'Ibyuma
Ifatiro ry'AmezaIfatiro ry'Ameza
2

Face and centre

Grip it in the three-jaw chuck, face the end square and centre-drill it.

Ibikoresho bikenewe:

Imashini yo guhinguza icyumaImashini yo guhinguza icyuma
Igikoresho gifata cy'ibirenge 3 cy'imashini ihinguraIgikoresho gifata cy'ibirenge 3 cy'imashini ihingura
Icyuma cyo kuca cy'itoreroIcyuma cyo kuca cy'itorero
Agatsiko k'ibitobora hagatiAgatsiko k'ibitobora hagati
Amavuta yo gukataAmavuta yo gukata
Amadarubindi y'umutekanoAmadarubindi y'umutekano
3

Drill through

Drill through from the tailstock, starting small and opening up a few sizes at a time, with cutting oil. Back out often to clear the chips.

Ibikoresho bikenewe:

Imashini yo guhinguza icyumaImashini yo guhinguza icyuma
Ibyuma Byinshi byo GucukuraIbyuma Byinshi byo Gucukura
Amavuta yo gukataAmavuta yo gukata
Amadarubindi y'umutekanoAmadarubindi y'umutekano
4

Bore the inside

Bore the hole out to the inside diameter with light cuts, checking with the caliper.

Ibikoresho bikenewe:

Imashini yo guhinguza icyumaImashini yo guhinguza icyuma
Igiti cyo gukata imbere mu mwoboIgiti cyo gukata imbere mu mwobo
Amavuta yo gukataAmavuta yo gukata
Ikigereranyo cya Digitale cy'Amasentimetero 6Ikigereranyo cya Digitale cy'Amasentimetero 6
Amadarubindi y'umutekanoAmadarubindi y'umutekano
5

Turn the outside

Turn the outside to diameter, keeping the wall even all round.

Ibikoresho bikenewe:

Imashini yo guhinguza icyumaImashini yo guhinguza icyuma
Icyuma cyo kuca cy'itoreroIcyuma cyo kuca cy'itorero
Amavuta yo gukataAmavuta yo gukata
Ikigereranyo cya Digitale cy'Amasentimetero 6Ikigereranyo cya Digitale cy'Amasentimetero 6
Amadarubindi y'umutekanoAmadarubindi y'umutekano
6

Face to length

Part or face the tube to length and file off the burrs.

Ibikoresho bikenewe:

Imashini yo guhinguza icyumaImashini yo guhinguza icyuma
Icyuma cyo guca ku ruzigaIcyuma cyo guca ku ruziga
Amakariso MenshiAmakariso Menshi
Ikigereranyo cya Digitale cy'Amasentimetero 6Ikigereranyo cya Digitale cy'Amasentimetero 6

Ibikoresho

1

Ibikoresho bikenewe

13

Iki gishushanyo gikora

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Agateganyo

Itiyo y'icyuma cya roulement (52100)

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