OSI Piston Seal Packing (Integrated Groove Mounting)
Brand :
NOK
Caution
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
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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.
■ 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.
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Specification Table
ODI type Iron rubber (PUR)
Material : NOK U801
.jpg)
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 |
onsidering the eccentricity of operating condition of the piston.
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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 | 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 |