Aha njirimara na ihe ọ pụtara

 

Ugbu a, oihe na-ebuụdị ahụ na-abawanye nwayọ nwayọ ka mkpa dị iche iche nke ndị mmadụ dị ugbu a na-abawanye, ugbu a netwọk ahụ emepeela nke ọma, nnyefe ozi dịkwa ngwa ngwa, ọ dịkwa mfe ịmata ụdị bearing. Na-esote, anyị ga-ewebata gị koodu bụ isi, koodu post, koodu pre-code na ihe ọmụma ndị ọzọ metụtara ya gbasara bearing.

 

Bịaaha na ihe ọ pụtara

 

Iheihe na-ebuỤdị ihe nlereanya ahụ na-enwekarị koodu tupu oge eruo, koodu bụ isi na koodu ozi. N'ozuzu, naanị nkọwa bụ isi ka a na-egosi aha ihe nlereanya ahụ. Ụdị ihe nlereanya bụ isi na-abụkarị akụkụ atọ, koodu ụdị, koodu nha na koodu dayameta dị n'ime. Koodu ozi bụ iji mkpụrụedemede na ọnụọgụ iji gosi nhazi, ndidi na ihe pụrụ iche achọrọ nke ihe ahụ. A na-eji koodu mmalite egosi obere akụkụ nke ihe nlereanya ahụ, nke mkpụrụedemede gosiri.

 

Usoro Nhazi Bearing (Rolling Bearing)

 

E kewara ya ụzọ abụọ: koodu tupu oge eruo, koodu bụ isi na koodu post.

 

1. Aha koodu bụ isi

 

(Ụdị koodu, koodu nha, koodu dayameta dị n'ime [nọmba 2])

 

A na-eji koodu bụ isi egosi dayameta dị n'ime, usoro dayameta, usoro obosara na ụdị ihe eji eburu ya, nke na-abụkarị ruo ọnụọgụ ise, dịka ndị a:

 

1) A na-egosi dayameta ime nke ihe mkpuchi ahụ site na ọnụọgụ mbụ site n'aka nri nke koodu bụ isi. Dayameta ime nke ihe mkpuchi ahụ nwere dayameta ime nkịtị nke d=20~480mm bụ ọtụtụ nke 5, ọnụọgụ abụọ a na-anọchitekwa oke nke nha dayameta ime nke ihe mkpuchi ahụ kewara site na 5, dị ka 04 pụtara d=20mm; 12 pụtara d=60mm, wdg. Maka ihe mkpuchi nwere dayameta ime nke 10mm, 12mm, 15mm na 17mm, koodu dayameta ime bụ 00, 01, 02 na 03 n'otu n'otu. Maka ihe mkpuchi nwere dayameta ime nke na-erughị 10mm na karịa 500mm, a na-akọwapụta ụzọ e si egosipụta dayameta ime ahụ, biko lee GB/T272-93.

 

2) Usoro dayameta nke ihe na-ebu ibu (ya bụ, usoro mgbanwe na dayameta mpụta na obosara nke ihe na-ebu ibu nwere otu nhazi na otu dayameta dị n'ime) ka egosi site na ọnụọgụ nke atọ site n'aka nri nke koodu bụ isi. Dịka ọmụmaatụ, maka ihe na-ebu ibu radial na radial, 0 na 1 na-egosi usoro ọkụ agbakwunyere; 2 na-egosi usoro ọkụ; 3 na-egosi usoro ọkara; 4 na-egosi usoro dị arọ. A na-egosi ntụnyere nha n'etiti usoro ahụ na eserese dị n'okpuru. Ihe na-ebu ibu thrust ma e wezụga 1 iji nọchite anya usoro ọkụ, ihe ndị ọzọ na ihe na-ebu ibu radial bụ otu.

 

3) Usoro obosara nke ihe na-ebu ibu (ya bụ, usoro mgbanwe na obosara nke ihe na-ebu ibu nwere otu nhazi ahụ, dayameta dị n'ime na usoro dayameta) ka egosi site na ọnụọgụ nke anọ site n'aka nri nke koodu bụ isi. Mgbe atụnyere usoro dayameta nke usoro obosara dị na Foto 13-4 dị ka usoro 0 (usoro nkịtị), enweghị ike itinye koodu obosara O na koodu maka ọtụtụ ihe na-ebu ibu, mana maka ihe na-ebu ibu gburugburu na ihe na-ebu ibu gburugburu, a ga-etinye koodu obosara 0 akara.

 

A na-akpọ koodu usoro dayameta na koodu usoro obosara n'ozuzu dị ka koodu usoro nha.

 

4) A na-eji ọnụọgụ nke ise nke koodu isi mee ihe nnọchianya nke ụdị ihe e ji eburu ya (maka ihe e ji agagharị agagharị na ihe e ji agagharị agagharị, koodu ahụ bụ mkpụrụedemede).

 

2. Koodu ozi

 

Koodu ozi nke ihe e ji ebipụta ya bụ iji mkpụrụedemede na ọnụọgụgụ gosi nhazi, ndidi na ihe pụrụ iche achọrọ maka ihe ahụ. E nwere ọtụtụ ihe dị na koodu ozi, leekwa ụfọdụ aha koodu ole na ole a na-ejikarị eme ihe.

 

1) Koodu nhazi ime bụ igosi nhazi ime dị iche iche nke otu ụdị ihe owuwu ahụ, nke a na-egosi site na mkpụrụedemede na koodu bụ isi. Dịka ọmụmaatụ, a na-anọchite anya bearings bọọlụ kọntaktị akụkụ nwere akụkụ kọntaktị nke 15°, 25° na 40° site na C, AC na B iji gosipụta ọdịiche dị na nhazi ime.

 

2) A na-ekewa ọkwa ndidi nke bearing ahụ n'ime ọkwa abụọ, ọkwa anọ, ọkwa ise, ọkwa isii, ọkwa isii na akara 0, ngụkọta nke akara isii, site na elu ruo ala, koodu ha bụkwa /PZ, /P4, /PS, /P6, /P6X na /PO. N'ime klas ndidi, klas 6X metụtara naanị bearing roller dị mkpụmkpụ; ọkwa 0 bụ ọkwa nkịtị, nke a na-anaghị akara na koodu bearing wiil.

 

3) Usoro radial clearance nke a na-ejikarị eme ihe na-ekewa otu otu, otu abụọ, otu 0, otu atọ, otu anọ na otu ise, mkpokọta otu isii, radial clearance na-esi na obere ruo nnukwu. Group o clearance bụ otu clearance a na-ejikarị eme ihe, nke a na-anaghị akara na koodu bearing, na ndị ọzọ fọdụrụ na clearance groups bụ /CI, /CZ, /C3, /C4 na /CS na koodu bearing.

 

3. Tinye koodu tupu oge eruo

 

A na-eji aha mbụ nke ihe e ji ebu ibu egosi akụkụ ndị dị n'ime ihe e ji ebu ibu, nke e ji mkpụrụedemede gosi. Dịka ọmụmaatụ, a na-eji L anọchite anya mgbanaka nke ihe e ji ebu ibu nke a na-ekewapụ; K na-egosi ihe ndị na-atụgharị na ihe ndị dị n'ime ihe e ji ebu ibu, wdg.

 

E nwere ọtụtụ ụdị bearing na-agagharị agagharị n'ọrụ bara uru, koodu bearing ndị kwekọrọ na ha dịkwa mgbagwoju anya karịa. Koodu ewebatara n'elu bụ akụkụ kachasị mfe na nke a na-ejikarị eme ihe na koodu bearing, ị nwekwara ike ịchọpụta ma lelee bearing ndị a na-ejikarị eme ihe ma ọ bụrụ na ị maara akụkụ a nke koodu ahụ. Maka usoro koodu zuru ezu nke bearing ndị na-agagharị agagharị, biko lee GBT272-93.