OSI Piston Seal Packing (Integrated Groove Mounting)

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

▪ Designed with a small cross-section, it allows for integrated groove mounting.
· This packing has a smaller cross-section version of the ODI type.

Dimesnion

Special Packing for Piston seals
R = 0.3 or below, R₁= 0.5 or below, R₂= 1
The inner surface of the cylinder tube should be finished by burnishing (RLB) or honing (GH) to 0.4 to 3.2 μmRz (0.1 to 0.8 μmRa).
Especially under serve lubricating condition, burnishing is required.
● The roughness is JIS B 0601:2001. 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	14MPa	21MPa	35MPa
Material of Backup ring	19YF
B dimension	B≧φD-1.0	B≧φD-0.5	B≧φD-0.2

Maximum Service Pressure	35MPa	42MPa
Material of Backup ring	80NP
B dimension	B≧φD-0.8	B≧φD-0.4

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

Specification Table

ODI type Iron rubber (PUR)
Material : NOK U801

Nominal size of Packing, and housing dimensions							Packing Part Number	Combination Backup Ring Part Number
D	d	h	HA	HB	φD1	C	Packing Part Number	BRT2 (Biascut) 19YF	BRN2 (Biascut) 80NP
35	27	5	5.7	8.7	34	2	FU0420L0	GN5707V0	GN9780O0
35.5	27.5	5	5.7	8.7	34.5	2	FU0450L0	GN5708V0	GN9781O0
35.5	28	5	5.7	8.7	34.5	2	FU2141L0	GN4791V0	GN9119O0
40	30	6	7	10	39	2.5	FU0490L0	GN4794V0	GN9122O0
41.5	31.5	6	7	10	40.5	2.5	FU2142L0	GN4796V0	GN9124O0
45	35	6	7	10	44	2.5	FU0563L0	GN4799V0	GN9127O0
45	35.5	6	7	10	44	2.5	FU2143L0	GN4801V0	GN9129O0
50	40	6	7	10	49	2.5	FU0613L0	GN4050V0	GN9131O0
55	45	6	7	10	54	2.5	FU0692L0	GN4804V0	GN9133O0
56	45	7	8	11	55	2.5	FU2144L0	GN4805V0	GN9134O0
56	46	6	7	10	55	2.5	FU0720L0	GN5709V0	GN9782O0
60	50	6	7	10	59	2.5	FU0742L0	GN4335V0	GN9138O0
63	53	6	7	10	62	2.5	FU0784L0	GN4693V0	GN9140O0
65	55	6	7	10	64	2.5	FU0807L0	GN4810V0	GN9141O0
66	56	6	7	10	65	2.5	FU0825L0	GN4766V0	GN9143O0
70	60	6	7	10	69	2.5	FU0846L0	GN4676V0	GN9144O0
71	60	7	8	11	70	2.5	FU2145L0	GN4812V0	GN9145O0
71	61	6	7	10	70	2.5	FU0877L0	GN4629V0	GN9783O0
73	63	6	7	10	72	2.5	FU0889L0	GN4814V0	GN9147O0
75	65	6	7	10	74	2.5	FU0897L0	GN4816V0	GN9149O0
77	67	6	7	10	76	2.5	FU0922L0	GN4697V0	GN9150O0
80	70	6	7	10	79	2.5	FU0936L0	GN4651V0	GN9092O0
80	71	6	7	10	79	2.5	FU2146L0	GN4818V0	GN9152O0
85	75	6	7	10	84	2.5	FU0979L0	GN4692V0	GN9241O0
90	80	6	7	10	89	2.5	FU1019L0	GN4820V0	GN9155O0
100	85	9	10	13	98	4	FU1078L0	GN4687V0	GN9091O0
105	90	9	10	13	103	4	FU1120L0	GN4698V0	GN9158O0
110	95	9	10	13	108	4	FU1152L0	GN4822V0	GN9160O0
112	98	8.5	9.5	12.5	110	4	FU2147L0	GN4824V0	GN9162O0
115	100	9	10	13	113	4	FU1193L0	GN4512V0	GN9163O0
120	105	9	10	13	118	4	FU1212L0	GN5198V0	GN9589O0
120	106	8.5	9.5	12.5	118	4	FU2148L0	GN4826V0	GN9166O0
125	112	8.5	9.5	12.5	123	4	FU2847L0	GN4827V0	GN9167O0
125	112	9	10	13	123	4	FU1926L0	GN4827V0	GN9167O0
130	115	9	10	13	128	4	FU1278L0	GN4593V0	GN9274O0
140	125	9	10	13	138	4	FU1320L0	GN4481V0	GN9170O0
145	130	9	10	13	143	4	FU2405L0	GN4628V1	GN9742O1
150	135	9	10	13	148	4	FU1356L0	GN5025V0	GN9539O0
150	136	8.5	9.5	12.5	148	4	FU2149L0	GN4830V0	GN9173O0
155	140	9	10	13	153	4	FU1386L0	GN4526V0	GN9410O0
160	145	9	10	13	158	4	FU1404L0	GN4551V0	GN9175O0
170	155	9	10	14	168	4	FU1441L0	GN4834V0	GN9178O0
175	160	9	10	14	173	4	FU1458L0	GN4835V0	GN9180O0
180	165	9	10	14	178	4	FU1481L0	GN4836V0	GN9182O0
190	175	9	10	14	188	4	FU1511L0	GN4839V0	GN9185O0
200	180	12	13	17	198	5	FU1539L0	GN4470V0	GN9187O0
210	190	12	13	17	208	5	FU1572L0	GN4841V0	GN9190O0
220	200	12	13	17	218	5	FU1594L0	GN4385V0	GN9191O0
224	204	12	13	17	222	5	FU1606L0	GN4842V0	GN9193O0
225	205	12	13	17	223	5	FU1618L0	GN5710V0	GN9784O0
230	210	12	13	17	228	5	FU1635L0	GN4627V0	GN9195O0
240	220	12	13	17	238	5	FU1655L0	GN4444V0	GN9196O0
250	230	12	13	17	248	5	FU1675L0	GN4635V0	GN9047O0
260	240	12	13	17	258	5	FU1700L0	GN4845V0	GN9198O0
270	250	12	13	17	268	5	FU1717L0	GN4459V0	GN9199O0
280	255	16	17	21	278	6.5	FU1730L0	GN4846V0	GN9201O0
290	265	16	17	21	288	6.5	FU1745L0	GN4848V0	GN9203O0
300	275	16	17	21	298	6.5	FU1760L0	GN4852V0	GN9207O0