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Pillow Block Bearing: a Grey-Iron Housing Bored for a Ball Bearing
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19. Oktober 2026NO
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Pillow Block Bearing: a Grey-Iron Housing Bored for a Ball Bearing

A pillow block holds a shaft in a bearing parallel to the surface it is bolted to. Heavy housings are commonly grey cast iron, the bearing is usually 52100 steel, and the shaft is held with set screws or collars (Wikipedia, Pillow block bearing). This one is a housing cast in grey iron, bored on the lathe and fitted with a ball bearing, for an 8 mm shaft. Design and sizes are ours. The picture: our drawing.
Lanjutan
2 days

Arahan

1

Make the pattern

From pine, make a pattern: a flat base 90 × 25 mm with a lug at each end, and a round boss rising from its middle about 40 mm across, its axis parallel to the base. Allow a little extra on the boss for boring, and taper all sides so it draws.

Alatan diperlukan:

Papan painPapan pain
Gergaji LengkungGergaji Lengkung
Set pahat kayuSet pahat kayu
Angkup Digital 6 InciAngkup Digital 6 Inci
2

Melt the iron

Melting pig iron in the cupola and tapping it into the ladle.
3

Mould and pour

Ram the pattern up in the flask, draw it, cut a sprue and runner, and pour grey iron from the ladle. Let it cool in the sand, then shake it out and grind off the sprue and fins.

Bahan untuk langkah ini:

Jongkong besi mentahJongkong besi mentah1.5 kg

Alatan diperlukan:

Pasir tuanganPasir tuangan
Kotak acuanKotak acuan
Penyodok tanganPenyodok tangan
Cedok tuang logamCedok tuang logam
Pencanai sudutPencanai sudut
Sarung tangan kimpalanSarung tangan kimpalan
Apron KulitApron Kulit
Perisai MukaPerisai Muka
4

Face the base and bore

File or grind the base flat. Bolt the housing to the lathe faceplate with the boss's axis on the lathe centre and the base parallel to it, and bore the boss to a light press fit for the ball bearing's outer race.

Alatan diperlukan:

Mesin Pelarik LogamMesin Pelarik Logam
Pinggan muka pelarikPinggan muka pelarik
Batang gerudi dalamBatang gerudi dalam
Angkup Digital 6 InciAngkup Digital 6 Inci
Set KikirSet Kikir
Cermin mata keselamatanCermin mata keselamatan
5

Slot the lugs

Drill and file a slot in each lug for a mounting bolt, square to the base, so the block can be lined up before it is tightened.

Alatan diperlukan:

Gerudi TiangGerudi Tiang
Set Mata GerudiSet Mata Gerudi
Set KikirSet Kikir
Ragum BangkuRagum Bangku
6

Press in the bearing

Press the ball bearing squarely into the bore, pushing on the outer race only. Check the inner race turns freely; the shaft is then held in it with set collars.

Bahan untuk langkah ini:

Galas BebolaGalas Bebola1 keping

Alatan diperlukan:

Ragum BangkuRagum Bangku
Tukul kepala baji lintangTukul kepala baji lintang

Bahan

2
  • 3
    Jongkong besi mentah
    1.5 kg
    Pemegang Tempat
  • 6
    Galas Bebola
    1 keping
    2 vendors sell this, none ship to you yet
    Pemegang Tempat

Alatan Diperlukan

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