UPH Type Packings for Piston Seal and Rod Seal

Brand :

NOK

Caution

Some of the items are scheduled to be discontinued as of end of March in 2023. The manufacturer keep the items produced but they are not available with Misumi.
There are not the replacement items and the plan to resumption of sale. Please check the quotation and order screen for details.

Product Description

· Usable for both piston seal and rod seal.
▪ Designed with a large cross-section so that it can be used for wide range of applications.
· Nitrile rubber and fluorine rubber are available, so it can be used in a wide range of temperature conditions.
▪ Wide range of sizes are available.

Dimension

For the fitting drawing of the rod seals.
R = 0.3 or below, R₁= 0.5 or below
The inner surface of the cylinder tube should be finished by buring (RLB) or honing (GH) to 0.4 to 3.2 μmRz (0.1 to 0.8 μmRa).
Especially under severe lubricating condition, burnishing is required.
● The roughness is JIS B 2601 : 2001. When regulation length cannot be kept, apply Pt.

For the fitting drawing of the piston seals.
R = 0.3 or below, R₁= 0.5 or below
The surface of the rod should be finished by buffing (SPBF) to 0.8 to 1.6 μmRz (0.2 to 0.4 μmRz).
● The roughness is JIS B 2601 : 2001. When regulation length cannot be kept, apply Pt.

How to Determine B dimension
■ When using backup ring. Please determine B dimension according to the table below.

Maximum Service Pressure		15MPa	32MPa
Material of Backup ring		19YF
B dimension	For Rod seals	B ≦ ø D + 1.0	B ≦ ø D + 0.5
	For Piston seals	B ≦ ø D - 1.0	B ≦ ø D - 0.5

■ When not using backup ring.
To determine B dimension, please refer to the graph in the right for the maximum extrusion gap (one side)
considering the eccentricity of operating condition of the piston or rod.

Specification Table

UPH type Nitrile rubber (NBR), Fluoro rubber (FKM)
Material : Standard NOK A505 / Heat Resistance type NOK F357

Note: The Part number and the one stamped on the product might be different in case of heat resistance type.

Nominal size of Packing, and Housing dimensions							Standard (A505)		Heat resistance type (F357)		Combination Backup Ring Part number
d	D	h	HA	HB	φ D1	C	Packing Part Number	Callout Number	Packing Part Number	Callout Number	BRT3 (Endless) 19 YF
6.3	16.3	7.5	8.5	10.5	15.3	2.5	CU3308D0	UPH-6.3			GN0720V0
6.3	16.3	8	9	11	15.3	2.5	CU0024D0	UPH-6.3A			GN0720V0
7.1	17.1	7.5	8.5	10.5	16.1	2.5	CU3309D0	UPH-7.1			GN0723V0
7.1	17.1	8	9	11	16.1	2.5	CU0030D0	UPH-7.1A			GN0723V0
8	18	7.5	8.5	10.5	17	2.5	CU0042D0	UPH-8			GN0725V0
8	18	8	9	11	17	2.5	CU0043D1	UPH-8A	CU0043D2	UPH-8AF	GN0725V0
9	19	7.5	8.5	10.5	18	2.5	CU3310D0	UPH-9			GN0728V0
9	19	8	9	11	18	2.5	CU0054D0	UPH-9A			GN0728V0
10	20	7.5	8.5	10.5	19	2.5	CU0068D0	UPH-10			GN0733V0
10	20	8	9	11	19	2.5	CU0069D1	UPH-10A			GN0733V0
11.2	21.2	7.5	8.5	10.5	20.2	2.5	CU3311D0	UPH-11.2			GN0736V0
11.2	21.2	8	9	11	20.2	2.5	CU0081D0	UPH-11.2A			GN0736V0
12	25	8	9	11	24	2.5	CU0093D0	UPH-12	CU0093D3	UPH-12F	GN6005V0
12.5	22.5	7.5	8.5	10.5	21.5	2.5	CU3312D0	UPH-12.5			GN0741V0
12.5	22.5	8	9	11	21.5	2.5	CU0102D0	UPH-12.5A			GN0741V0
14	24	7.5	8.5	10.5	23	2.5	CU0121D0	UPH-14			GN0745V0
14	24	8	9	11	23	2.5	CU0122D0	UPH-14A	CU0122D3	UPH-14AF	GN0745V0
15	25	8	9	11	24	2.5	CU0135D0	UPH-15A			GN0749V0
15	28	10	11	13	27	2.5	CU0137D0	UPH-15			GN6445V0
16	26	7.5	8.5	10.5	25	2.5	CU0156D0	UPH-16	CU0156D2	UPH-16F	GN0751V0
16	26	8	9	11	25	2.5	CU0157D1	UPH-16A			GN0751V0
16	32	10	11	13	31	2.5	CU0161D0	UPH-16B			GN7288V0
18	28	8	9	11	27	2.5	CU0182D0	UPH-18A	CU0182D4	UPH-18AF	GN0757V0
18	31	10	11	13	30	3.5	CU0186D0	UPH-18			GN6446V0
18	33	10	11	13	32	3.5	CU2196D0	UPH-18B			GN7354V0
18.5	31.5	10	11	13	30.5	3.5	CU3313D0	UPH-18.5	CU3313D1	UPH-18.5F	GN7240V0
20	30	8	9	11	29	3.5	CU0215D1	UPH-20A	CU0215D2	UPH-20AF	GN0762V0
20	33	10	11	13	32	3.5	CU0221D0	UPH-20			GN6448V0
20	35	10	11	13	34	3.5	CU0224D0	UPH-20B			GN7289V0
21.5	31.5	8	9	11	30.5	3.5	CU0239D0	UPH-21.5			GN0767V0
22	35	10	11	13	34	3.5	CU0249D0	UPH-22			GN6449V0
22.4	32.4	8	9	11	31.4	3.5	CU0263D0	UPH-22.4A	CU0263D3	UPH-22.4AF	GN0771V0
22.4	35.4	10	11	13	34.4	3.5	CU0265D1	UPH-22.4			GN6017V0
25	35	8	9	11	34	3.5	CU0282D2	UPH-25A	CU0282D3	UPH-25AF	GN0781V0
25	38	10	11	13	37	3.5	CU0288D0	UPH-25			GN6453V0
25	40	10	11	13	39	3.5	CU0292D0	UPH-25B	CU0292D4	UPH-25BF	GN6591V0
25	45	12	13	15	44	3.5	CU0301D0	UPH-25C			GN7291V0
25.5	35.5	8	9	11	34.5	3.5	CU0309D0	UPH-25.5			GN6454V0
27	40	10	11	14	39	3.5	CU2347D0	UPH-27			GN6455V0
28	40	10	11	14	39	3.5	CU0330D2	UPH-28A	CU0330D6	UPH-28AF	GN6457V0
28	41	10	11	14	40	3.5	CU0335D0	UPH-28			GN6458V0
28	43	10	11	14	42	3.5	CU0340D0	UPH-28B			GN0791V0
67	87	12	13	16	86	5	CU0831D0	UPH-67A	CU0831D3	UPH-67AF	GN0904V0
67	87	15	16	19	86	5	CU3319D0	UPH-67			GN0904V0
70	90	12	13	16	89	5	CU0862D1	UPH-70A	CU0862D4	UPH-70AF	GN0910V0
70	90	15	16	19	89	5	CU0864D0	UPH-70	CU0864D2	UPH-70F	GN0910V0
71	91	12	13	16	90	5	CU0884D1	UPH-71A	CU0884D3	UPH-71AF	GN0914V0
71	91	15	16	19	90	5	CU0885D0	UPH-71			GN0914V0
75	95	12	13	16	94	5	CU0910D1	UPH-75A			GN0920V0
75	95	15	16	19	94	5	CU0911D1	UPH-75	CU0911D2	UPH-75F	GN0920V0
80	100	12	13	16	99	5	CU0948D1	UPH-80A	CU0948D9	UPH-80AF	GN0927V0
80	100	15	16	19	99	5	CU0949D2	UPH-80	CU0949D3	UPH-80F	GN0927V0
85	105	12	13	16	104	5	CU0989D1	UPH-85A	CU0989D3	UPH-85AF	GN0932V0
85	105	15	16	19	104	5	CU0990D0	UPH-85			GN0932V0
90	110	12	13	16	109	5	CU1030D3	UPH-90A	CU1030D7	UPH-90AF	GN0939V0
90	110	15	16	19	109	5	CU1031D0	UPH-90	CU1031D3	UPH-90F	GN0939V0
92	112	12	13	16	111	5	CU1042D1	UPH-92A			GN0940V0
92	112	15	16	19	111	5	CU2132D1	UPH-92	CU2132D2	UPH-92F	GN0940V0
95	115	12	13	16	114	5	CU1056D0	UPH-95A	CU1056D4	UPH-95AF	GN0945V0
95	115	15	16	19	114	5	CU1057D1	UPH-95	CU1057D3	UPH-95F	GN0945V0
95	120	15	16	19	118	5	CU1061D0	UPH-95B			GN6716V0
100	120	12	13	16	118	5	CU1089D3	UPH-100A	CU1089D7	UPH-100AF	GN0952V0
100	120	15	16	19	118	5	CU1091D0	UPH-100	CU1091D3	UPH-100F	GN0952V0
100	125	15	16	19	123	5	CU1096D0	UPH-100B	CU1096D3	UPH-100BF	GN7297V0
105	125	15	16	19	123	5	CU1129D2	UPH-105	CU1129D4	UPH-105F	GN0959V0
106	126	15	16	19	124	5	CU1138D0	UPH-106			GN0961V0
110	130	15	16	19	128	5	CU1165D1	UPH-110	CU1165D4	UPH-110F	GN6790V0
112	132	15	16	19	130	5	CU1182D0	UPH-112	CU1182D3	UPH-112F	GN0970V0
115	135	15	16	19	133	5	CU1198D0	UPH-115			GN0974V0
118	138	15	16	19	136	5	CU1207D0	UPH-118	CU1207D2	UPH-118F	GN0978V0
120	140	15	16	19	138	5	CU1224D2	UPH-120	CU1224D1	UPH-120F	GN0982V0
125	145	15	16	19	143	6.5	CU1257D0	UPH-125A			GN0986V0
125	150	19	20	23	148	6.5	CU1933D0	UPH-125	CU1933D2	UPH-125F	GN6135V0
130	150	15	16	19	148	6.5	CU1284D2	UPH-130A	CU1284D4	UPH-130AF	GN6925V0
130	155	19	20	23	153	6.5	CU3320D0	UPH-130			GN7012V0
132	152	15	16	19	150	6.5	CU1292D0	UPH-132A			GN0994V0
132	157	19	20	23	155	6.5	CU2703D1	UPH-132	CU2703D2	UPH-132F	GN7013V0
135	155	15	16	19	153	6.5	CU1305D0	UPH-135B			GN0998V0
135	160	15.7	17	20	158	6.5	CU3322D0	UPH-135A			GN6492V0
135	160	19	20	23	158	6.5	CU1960D0	UPH-135			GN6492V0
140	160	15	16	19	158	6.5	CU1327D1	UPH-140A	CU1327D4	UPH-140AF	GN1002V0
140	165	19	20	23	163	6.5	CU1332D2	UPH-140			GN6494V0
145	165	15	16	19	163	6.5	CU1344D0	UPH-145A			GN1007V0
145	170	19	20	23	168	6.5	CU2348D0	UPH-145	CU2348D1	UPH-145F	GN6496V0
150	170	15	16	19	168	6.5	CU1363D2	UPH-150A	CU1363D3	UPH-150AF	GN1011V0
150	175	19	20	23	173	6.5	CU1367D0	UPH-150			GN7014V0
155	180	15	16	20	178	6.5	CU1391D2	UPH-155B	CU1391D4	UPH-155BF	GN1016V0
155	180	15.7	17	21	178	6.5	CU3323D0	UPH-155A			GN1016V0
155	180	19	20	24	178	6.5	CU1393D0	UPH-155			GN1016V0
160	185	15	16	20	183	6.5	CU1413D0	UPH-160A	CU1413D3	UPH-160AF	GN1020V0
160	185	19	20	24	183	6.5	CU2349D0	UPH-160			GN1020V0
165	190	15	16	20	188	6.5	CU1431D0	UPH-165A			GN1023V0
165	190	19	20	24	188	6.5	CU3324D0	UPH-165			GN1023V0
170	195	15	16	20	193	6.5	CU1448D1	UPH-170A	CU1448D3	UPH-170AF	GN1027V0
170	195	19	20	24	193	6.5	CU3325D0	UPH-170			GN1027V0
175	200	15	16	20	198	6.5	CU1461D2	UPH-175B	CU1461D3	UPH-175BF	GN1031V0
175	200	15.7	17	21	198	6.5	CU3326D0	UPH-175A			GN1031V0
175	200	19	20	24	198	6.5	CU1463D1	UPH-175			GN1031V0
180	205	15	16	20	203	6.5	CU1490D0	UPH-180A			GN1035V0
180	205	19	20	24	203	6.5	CU1492D0	UPH-180			GN1035V0
185	210	15	16	20	208	6.5	CU1504D0	UPH-185			GN1039V0
190	215	15	16	20	213	6.5	CU1519D0	UPH-190A	CU1519D2	UPH-190AF	GN1042V0
190	215	19	20	24	213	6.5	CU3327D0	UPH-190			GN1042V0
199	224	15	16	20	222	6.5	CU1532D0	UPH-199B			GN1047V0
199	224	15.7	17	21	222	6.5	CU3329D0	UPH-199A			GN1047V0
199	224	19	20	24	222	6.5	CU1535D0	UPH-199			GN1047V0
200	225	15	16	20	223	6.5	CU1547D0	UPH-200A	CU1547D4	UPH-200AF	GN1050V0
200	225	19	20	24	223	6.5	CU2350D0	UPH-200			GN1050V0
210	235	18	19	23	233	6.5	CU1579D0	UPH-210			GN1057V0
212	237	19	20	24	235	6.5	CU1585D0	UPH-212			GN1058V0
215	240	19	20	24	238	6.5	CU3331D0	UPH-215			GN7256V0
224	249	19	20	24	247	6.5	CU2926D0	UPH-224	CU2926D1	UPH-224F	GN7282V0
225	250	18	19	23	248	6.5	CU1625D0	UPH-225A			GN1065V0
225	250	19	20	24	248	6.5	CU1626D0	UPH-225	CU1626D1	UPH-225F	GN1065V0
236	261	19	20	24	259	6.5	CU1649D1	UPH-236			GN6191V0
250	275	19	20	24	273	6.5	CU1683D1	UPH-250			GN1078V0
255	280	19	20	24	278	8	CU1694D0	UPH-255	CU1694D3	UPH-255F	GN6513V0
265	297	24	26	30	295	8	CU1714D0	UPH-265			GN6515V0
270	300	18	19	23	298	8	CU1722D0	UPH-270A			GN1089V0
270	300	24	26	30	298	8	CU1725D0	UPH-270	CU1725D1	UPH-270F	GN1089V0
280	310	22	24	28	308	8	CU2774D0	UPH-280A			GN1093V0
280	312	24	26	30	310	8	CU2166D0	UPH-280	CU2166D1	UPH-280F	GN6519V0
283	315	24	26	30	313	8	CU1918D0	UPH-283			GN7358V0
290	320	18	19	23	318	8	CU1750D0	UPH-290A			GN1098V0
290	320	22	24	28	318	8	CU1752D0	UPH-290			GN1098V0
300	332	24	26	30	330	8	CU2351D0	UPH-300			GN6522V0

UPH type Packing for Both Piston and Rod seals
[Large size dimension table]

Nominal size of Packing, and Housing dimensions							Standard (A505)		Heat resistance type (F357)		Combination Backup Ring Part number
d	D	h	HA	HB	φ D1	C	Packing Part Number	Callout Number	Packing Part Number	Callout Number	BRT3 (Endless) 19 YF
310	340	18	19	23	338	10	CU1772D0	UPH-310A
310	340	22	24	28	338	10	CU1773D0	UPH-310	CU1773D2	UPH-310F
315	347	24	26	30	345	10	CU3064D0	UPH-315
320	340	12	13	17	338	10	CU2101D0	UPH-320A
320	350	22	24	28	348	10	CU1780D0	UPH-320
323	355	24	26	30	353	10	CU1784D0	UPH-323
330	355	16	17	21	353	10	CU1786D0	UPH-330A
330	356	20	22	26	354	10	CU1787D0	UPH-330B
330	360	22	24	28	358	10	CU1789D0	UPH-330
335	355	14	15	19	353	10	CU1793D1	UPH-335A
335	367	24	26	30	365	10	CU2197D0	UPH-335
340	370	22	24	28	368	10	CU1795D0	UPH-340
345	365	14	15	19	363	10	CU2243D0	UPH-345
348	380	24	26	30	378	10	CU2087D1	UPH-348
350	370	14	15	19	368	10	CU2302D0	UPH-350A
350	380	22	24	28	378	10	CU1799D2	UPH-350
355	385	22	24	28	383	10	CU1801D0	UPH-355A
355	387	24	26	30	385	10	CU1916D0	UPH-355
360	390	22	24	28	388	10	CU1803D0	UPH-360	CU1803D2	UPH-360F
365	395	22	24	28	393	10	CU1805D0	UPH-365
368	400	24	26	30	398	10	CU1807D0	UPH-368	CU1807D1	UPH-368F
370	400	23	25	29	398	10	CU1810D0	UPH-370A
370	400	25	27	31	398	10	CU1811D0	UPH-370
371	396	16	17	21	394	10	CU2303D0	UPH-371
375	407	24	26	30	405	10	CU3357D0	UPH-375
380	400	15	16	20	398	10	CU1813D0	UPH-380A
380	410	15	16	20	408	10	CU1815D0	UPH-380B
380	420	30	32	36	418	10	CU2162D0	UPH-380
390	420	22	24	28	418	10	CU1818D0	UPH-390
395	425	22	24	28	423	10	CU1819D0	UPH-395
400	430	22	24	28	428	10	CU1823D0	UPH-400A
400	430	25	27	31	428	10	CU2007D0	UPH-400B
400	432	24	26	30	430	10	CU3358D0	UPH-400
420	455	25	27	32	453	10	CU1833D0	UPH-420
425	457	24	26	31	455	10	CU1917D0	UPH-425
430	470	20	22	27	468	10	CU1837D0	UPH-430
435	470	25	27	32	468	10	CU1841D0	UPH-435
440	480	35	37	42	478	10	CU1843D0	UPH-440
445	470	18	19	24	468	10	CU2244D0	UPH-445
450	480	22	24	29	478	10	CU1844D0	UPH-450A
450	482	24	26	31	480	10	CU3359D0	UPH-450
460	500	20	22	27	498	10	CU1850D0	UPH-460
475	507	24	26	31	505	10	CU1853D0	UPH-475
480	505	18	19	24	503	10	CU2245D0	UPH-480A
490	530	25	27	32	528	10	CU1855D0	UPH-490
520	550	17	18	23	548	10	CU2189D0	UPH-520A
525	555	15	16	21	553	10	CU1860D0	UPH-525
530	570	20	22	27	568	10	CU2084D0	UPH-530A
540	560	14	15	20	558	10	CU2037D0	UPH-540
570	600	17	18	23	598	10	CU2190D0	UPH-570A
600	630	20	22	27	628	10	CU2160D0	UPH-600A
600	630	28	30	35	628	10	CU2036D0	UPH-600B
600	640	30	32	37	638	10	CU1868D0	UPH-600
640	685	25	27	32	683	12	CU2284D0	UPH-640
700	730	15	16	21	728	12	CU1873D0	UPH-700A
760	800	34	36	41	798	12	CU1877D0	UPH-760
768	800	30	32	37	798	12	CU1878D0	UPH-768
818	850	24	26	31	848	12	CU1882D1	UPH-818
825	850	15.5	16.5	21.5	848	12	CU1883D0	UPH-825A
825	860	27	29	34	858	12	CU2124D0	UPH-825
925	950	14	15	20	948	12	CU2325D0	UPH-925
950	980	20	22	27	978	12	CU1892D0	UPH-950
1020	1050	18	19	24	1048	12	CU1894D0	UPH-1020A
1025	1055	15	16	21	1053	12	CU1895D0	UPH-1025
1100	1140	20	22	27	1138	12	CU2192D0	UPH-1100
1220	1280	30	32	37	1278	12	CU1899D0	UPH-1220
1560	1600	20	22	27	1598	12	CU2191D0	UPH-1560
1620	1680	30	32	37	1678	12	CU1904D0	UPH-1620