Technical Informations - NBK - (Version JPG) - Page n° 19 - PDF Catalogue | Technical Documentation

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Shaft collar, Rigid coupling, Rotary damper, Beam coupling, Disc coupling

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Parallel Pipe Threads

Excerpt from JIS B 0202-1999

3asic Profiles, Formulas and Dimensions

unit: mm


					Male Thread
Nominal of	Number of Thread Peaks in 25.4 mm	Pitch	Thread Height	Radius	Outer Diameter d	Pitch Diameter d2	Minor Diameter d1
Thread	Number of Thread Peaks in 25.4 mm	Pitch	Thread Height	Radius	Female Thread
	n	(Ref)	h	r	Minor Diameter D	Pitch Diameter D2	Inside Diameter D1
G Vie	28	0.9071	0.581	0.12	7.723	7.142	6.561
G Va	28	0.9071	0.581	0.12	9.728	9.147	8.566
G 1/4	19	1.3368	0.856	0.18	13.157	12.301	11.445
G 3/a	19	1.3368	0.856	0.18	16.662	15.806	14.950
G 1/2	14	1.8143	1.162	0.25	20.955	19.793	18.631
G Va	14	1.8143	1.162	0.25	22.911	21.749	20.587
G 3/4	14	1.8143	1.162	0.25	26.441	25.279	24.117
G 7/8	14	1.8143	1.162	0.25	30.201	29.039	27.877
G1	11	2.3091	1.479	0.32	33.249	31.770	30.291
G1V8	11	2.3091	1.479	0.32	37.897	36.418	34.939
G1V4	H	2.3091	1.479	0.32	41.910	40.431	38.952
G11/2	11	2.3091	1.479	0.32	47.803	46.324	44.845
G13/4	11	2.3091	1.479	0.32	53.746	52.267	50.788
G2	H	2.3091	1.479	0.32	59.614	58.135	56.656
G2V4	11	2.3091	1.479	0.32	65.710	64.231	62.752
G2V2	11	2.3091	1.479	0.32	75.184	73.705	72.226
G23/4	H	2.3091	1.479	0.32	81.534	80.055	78.576
G3	11	2.3091	1.479	0.32	87.884	86.405	84.926
G3V2	11	2.3091	1.479	0.32	100.330	98.851	97.372
G4	H	2.3091	1.479	0.32	113.030	111.551	110.072
G4V2	11	2.3091	1.479	0.32	125.730	124.251	122.772
G5	11	2.3091	1.479	0.32	138.430	136.951	135.472
G5V2	H	2.3091	1.479	0.32	151.130	149.651	148.172
G6	¹¹	2.3091	1.479	0.32	163.830	162.351	160.872

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Technical Informations - NBK - #19

Shaft collar, Rigid coupling, Rotary damper, Beam coupling, Disc coupling