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

Created by

Forge

18. October 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.
Intermediate
Half a day

Instructions

1

Cut the blank

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

Materials for this step:

Bearing Steel Bar (52100)Bearing Steel Bar (52100)1 piece

Tools needed:

HacksawHacksaw
Bench ViseBench Vise
2

Face and centre

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

Tools needed:

Metal LatheMetal Lathe
Lathe Chuck 3-JawLathe Chuck 3-Jaw
Lathe Cutting ToolLathe Cutting Tool
Center Drill SetCenter Drill Set
Cutting OilCutting Oil
Safety GlassesSafety Glasses
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.

Tools needed:

Metal LatheMetal Lathe
Drill Bit SetDrill Bit Set
Cutting OilCutting Oil
Safety GlassesSafety Glasses
4

Bore the inside

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

Tools needed:

Metal LatheMetal Lathe
Boring BarBoring Bar
Cutting OilCutting Oil
Digital Caliper 6-InchDigital Caliper 6-Inch
Safety GlassesSafety Glasses
5

Turn the outside

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

Tools needed:

Metal LatheMetal Lathe
Lathe Cutting ToolLathe Cutting Tool
Cutting OilCutting Oil
Digital Caliper 6-InchDigital Caliper 6-Inch
Safety GlassesSafety Glasses
6

Face to length

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

Tools needed:

Metal LatheMetal Lathe
Parting ToolParting Tool
File SetFile Set
Digital Caliper 6-InchDigital Caliper 6-Inch

Materials

1

Tools Required

13

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Bearing Steel Tube (52100)

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