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Bearing Steel Tube (52100): Drilled and Bored from Bar on the Lathe
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Forge

Imeundwa na

Forge

18. Oktoba 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.
Kati
Half a day

Maagizo

1

Cut the blank

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

Vifaa kwa hatua hii:

Fimbo ya chuma cha beringi (52100)Fimbo ya chuma cha beringi (52100)1 kipande

Zana zinazohitajika:

Msumeno wa chumaMsumeno wa chuma
Kibano cha meza ya kaziKibano cha meza ya kazi
2

Face and centre

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

Zana zinazohitajika:

Kereza ya ChumaKereza ya Chuma
Chaki ya kereza yenye makucha 3Chaki ya kereza yenye makucha 3
Chombo cha kukata cha latheChombo cha kukata cha lathe
Seti ya bit za kuanzia shimoSeti ya bit za kuanzia shimo
Mafuta ya kukatiaMafuta ya kukatia
Miwani ya usalamaMiwani ya usalama
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.

Zana zinazohitajika:

Kereza ya ChumaKereza ya Chuma
Seti ya vichimbuziSeti ya vichimbuzi
Mafuta ya kukatiaMafuta ya kukatia
Miwani ya usalamaMiwani ya usalama
4

Bore the inside

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

Zana zinazohitajika:

Kereza ya ChumaKereza ya Chuma
Fimbo ya kukata ndaniFimbo ya kukata ndani
Mafuta ya kukatiaMafuta ya kukatia
Kipima-unene cha dijitali cha inchi 6Kipima-unene cha dijitali cha inchi 6
Miwani ya usalamaMiwani ya usalama
5

Turn the outside

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

Zana zinazohitajika:

Kereza ya ChumaKereza ya Chuma
Chombo cha kukata cha latheChombo cha kukata cha lathe
Mafuta ya kukatiaMafuta ya kukatia
Kipima-unene cha dijitali cha inchi 6Kipima-unene cha dijitali cha inchi 6
Miwani ya usalamaMiwani ya usalama
6

Face to length

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

Zana zinazohitajika:

Kereza ya ChumaKereza ya Chuma
Patasi ya kukata kaziPatasi ya kukata kazi
Seti ya tupaSeti ya tupa
Kipima-unene cha dijitali cha inchi 6Kipima-unene cha dijitali cha inchi 6

Vifaa

1

Zana Zinazohitajika

13

Mchoro huu unatengeneza

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Kishikilia nafasi

Bomba la chuma cha beringi (52100)

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Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

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Workholding on the Lathe: Three Jaws, Four Jaws, and Which to Reach For

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