> Lihlahisoa > Bolts & Studs > Liboutu tsa Hlooho tsa Countersunk > No.7 Mehoma ea Hlooho (Round, Countersunk, Reverse Key) [Letlapa la 2] (A307, F468, F593, SAE J 429)

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No.7 Mehoma ea Hlooho (Round, Countersunk, Reverse Key) [Letlapa la 2] (A307, F468, F593, SAE J 429)

No.7 Liboto tsa Mohoma oa Hlooho (Round, Countersunk, Reverse Key) [Letlapa la 2] (A307, F468, F593, SAE J 429) li fana ka litharollo tse ka tšeptjoang le tse ka tšeptjoang bakeng sa lisebelisoa tsa temo le metjhini e boima. Ka mekhoa ea bona e fapaneng ea hlooho, kaho e matla haholo, le ho latela litlhaloso tsa Letlapa la 2, liboutu tsena li netefatsa likhokahano tse sireletsehileng le tse tšoarellang maemong a hlokang ho sebetsa.

Mohlala:ASME B 18.9

Romela Lipatlisiso

Tlhaloso ea Sehlahisoa

[258]

No.7 Mehoma ea Hlooho (Round, Countersunk, Reverse Key) [Lethathamo la 2] (A307, F468, F593, SAE J 429):Liboutu tsena li etselitsoe ho tiisa ka matla lits'ebetsong tsa temo le mochini o boima, tse fanang ka maemo a fapaneng le a ts'epahalo.

Mefuta e sa tšoaneng ea Hlooho:Ka likhetho tsa ho pota-pota, li-countersunk kapa lihlooho tse ka morao, liboutu tsena li fana ka litlhoko le likhetho tse fapaneng tsa ho kenya, ho netefatsa hore li tsamaellana le likarolo tse fapaneng tsa mochini le mekhoa ea kopano.

Litlhaloso tsa Lethathamo la 2:Litlhaloso tse hlalositsoeng ho Lethathamo la 2 li fana ka lintlha tse nepahetseng mabapi le litekanyo, boholo ba khoele, le likarolo tse ling tsa bohlokoa, ho tsamaisa khetho e nepahetseng le ts'ebeliso mererong e fapaneng.

Lisebelisoa tsa Matla a Phahameng:E entsoe ho finyella litekanyetso tsa A307, F468, F593, le SAE J 429, liboutu tsena li hahiloe ka thepa e matla e phahameng, ho netefatsa ho tšoarella le ho hanyetsa ho apara ha mechine le ho senya. Kaho ena e matla e ntlafatsa bophelo bo bolelele le ho ts'epahala ha likhokahano tse tiisitsoeng.

Tšebeliso e fapaneng:E etselitsoe ho sebelisoa mehoma le lisebelisoa tse tšoanang, liboutu tsena li loketse mefuta e mengata ea lisebelisoa tsa temo le metjhini e boima. Ba fana ka tharollo e tšepahalang ea ho tiisa bakeng sa likarolo tse tlas'a khatello e matla le meroalo e boima libakeng tse thata tsa ts'ebetso.

Screw Thread
d

5/16

3/8

7/16

1/2

9/16

(5/8)

(3/4)

PP	UNC
d_s	max
d_s	min
d_k	max
d_k	min
k₁	max
k₁	min
k	max
k	min

18	16	14	13	12	11	10
0.312	0.375	0.438	0.500	0.592	0.657	0.782
0.299	0.360	0.421	0.483	0.544	0.606	0.729
0.592	0.661	0.776	0.892	1.021	1.121	1.277
0.546	0.603	0.709	0.814	0.938	1.028	1.184
0.200	0.202	0.242	0.282	0.336	0.363	0.390
0.185	0.187	0.227	0.267	0.321	0.348	0.375
0.233	0.239	0.282	0.328	0.383	0.414	0.440
0.208	0.208	0.246	0.286	0.338	0.364	0.390

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