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Steel Balls for Ball Bearings: Headed, Ground and Lapped
Forge

Dicipta oleh

Forge

14. Oktober 2026NO
17
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Steel Balls for Ball Bearings: Headed, Ground and Lapped

Bearing balls start as steel wire: cut into short pellets, pressed into rough spheres, rolled round between grooved plates, hardened, then ground and lapped until they are almost perfectly round and smooth.
Lanjutan
Works process

Arahan

1

Watch: how ball bearings are made

How It's Made: ball bearings, from steel to finished balls and rings.
2

Shear and head

Shear the wire into pellets of about the ball's volume. Head each pellet into a rough sphere.

Bahan untuk langkah ini:

Dawai keluli springDawai keluli spring1 as required

Alatan diperlukan:

Playar pemotong sisiPlayar pemotong sisi
Mesin tempa sejuk kepalaMesin tempa sejuk kepala
3

Roll off the flash

Run the balls between rill plates, one fixed and one turning, with coolant pumped between them. This takes off the flash and rounds them; the pressure also hardens the surface a little.

Alatan diperlukan:

Pengisar bebola plat beralurPengisar bebola plat beralur
Minyak pemotongMinyak pemotong
4

Harden and descale

Heat-treat the steel balls (harden and quench), then tumble off the scale.

Alatan diperlukan:

Ketuhar rawatan habaKetuhar rawatan haba
Baldi pelindapkejutanBaldi pelindapkejutan
Tong pembuang sirip acuanTong pembuang sirip acuan
5

Grind and lap

Hard-grind them in the same kind of machine with a fine grinding wheel or abrasive in the coolant, to within about a ten-thousandth of an inch. Lap them for more precision. Check sizes with a micrometer.

Alatan diperlukan:

Roda pengisarRoda pengisar
Pengisar bebola plat beralurPengisar bebola plat beralur
Mesin pelelas bebolaMesin pelelas bebola
Sebatian pelelasSebatian pelelas
MikrometerMikrometer
6

Limits

Process from Wikipedia's Bearing ball article. Wikipedia lists chrome steel among bearing-ball steels; high-carbon spring-steel wire is our choice here.

Bahan

1

Alatan Diperlukan

11

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