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JR SEAL ISI Rod Seal
ISI Rod Seal
The ISI rod seal is designed for hydraulic cylinder piston rods and is installed in an integral groove in the head or guide sleeve to help prevent oil leakage and reduce the entry of dust or dirt.
Product Profile
| Profile | ISI rod seal |
|---|---|
| Material | Polyurethane (PUR) |
| Maximum pressure | 30 MPa |
| Temperature range | -30 to 100 °C |
| Application | Reciprocating hydraulic cylinder piston rods |
Advantages
PUR material for stable sealing and wear resistance
Integral-groove rod-seal profile for reciprocating hydraulic cylinders
Suitable for a broad range of metric rod-seal sizes
Can be matched with a backup ring where the pressure and extrusion gap require it
Application
The ISI rod seal is designed for hydraulic cylinder piston rods and is installed in an integral groove in the head or guide sleeve to help prevent oil leakage and reduce the entry of dust or dirt.
This profile is intended for reciprocating hydraulic cylinder rod-sealing applications. Confirm the equipment model, operating medium, pressure, temperature, and groove design before selection.
Installation and Design Notes
Before installation, verify the rod surface finish, edge radii, extrusion gap, and groove dimensions against the ISI profile drawing. The referenced rod-seal catalogue recommends checking the rod finish and the maximum extrusion gap for the actual pressure and eccentricity conditions.
Available Sizes
All dimensions below are in millimeters (mm). The table is split into three responsive columns for easier desktop reading and remains horizontally manageable on smaller screens. Please confirm the required size and groove details before ordering.
| Inner diameter (mm) | Outer diameter (mm) | Height (mm) | Groove width (mm) |
|---|---|---|---|
| 18 | 26 | 5 | 5.7 |
| 20 | 28 | 5 | 5.7 |
| 22.4 | 30 | 5 | 5.7 |
| 22.4 | 30.4 | 5 | 5.7 |
| 23.5 | 31.5 | 5 | 5.7 |
| 25 | 33 | 5 | 5.7 |
| 25 | 35 | 5 | 5.7 |
| 28 | 35.5 | 5 | 5.7 |
| 28 | 36 | 5 | 5.7 |
| 30 | 40 | 6 | 7 |
| 31.5 | 41.5 | 6 | 7 |
| 35 | 45 | 6 | 7 |
| 35.5 | 45 | 6 | 7 |
| 35.5 | 45.5 | 6 | 7 |
| 40 | 50 | 6 | 7 |
| 40 | 50 | 6 | 7 |
| 45 | 55 | 6 | 7 |
| 45 | 56 | 7 | 8 |
| 50 | 60 | 6 | 7 |
| 53 | 63 | 6 | 7 |
| 55 | 65 | 6 | 7 |
| 56 | 66 | 6 | 7 |
| 60 | 70 | 6 | 7 |
| 60 | 71 | 7 | 8 |
| Inner diameter (mm) | Outer diameter (mm) | Height (mm) | Groove width (mm) |
|---|---|---|---|
| 63 | 73 | 6 | 7 |
| 65 | 75 | 6 | 7 |
| 67 | 77 | 6 | 7 |
| 70 | 80 | 6 | 7 |
| 71 | 81 | 6 | 7 |
| 72.5 | 82.5 | 6 | 7 |
| 75 | 85 | 6 | 7 |
| 80 | 90 | 6 | 7 |
| 85 | 100 | 9 | 10 |
| 86.5 | 96.5 | 6 | 7 |
| 90 | 100 | 6 | 7 |
| 90 | 105 | 9 | 10 |
| 95 | 110 | 9 | 10 |
| 98 | 112 | 8.5 | 9.5 |
| 100 | 115 | 9 | 10 |
| 105 | 120 | 9 | 10 |
| 106 | 120 | 8.5 | 9.5 |
| 110 | 125 | 9 | 10 |
| 112 | 125 | 9 | 10 |
| 115 | 130 | 9 | 10 |
| 118 | 133 | 9 | 10 |
| 120 | 135 | 9 | 10 |
| 125 | 140 | 9 | 10 |
| 130 | 145 | 9 | 10 |
| Inner diameter (mm) | Outer diameter (mm) | Height (mm) | Groove width (mm) |
|---|---|---|---|
| 134 | 148 | 8.5 | 9.5 |
| 136 | 150 | 8.5 | 9.5 |
| 140 | 155 | 9 | 10 |
| 145 | 160 | 9 | 10 |
| 150 | 165 | 9 | 10 |
| 155 | 170 | 9 | 10 |
| 160 | 175 | 9 | 10 |
| 165 | 180 | 9 | 10 |
| 170 | 185 | 9 | 10 |
| 175 | 190 | 9 | 10 |
| 180 | 200 | 12 | 13 |
| 190 | 210 | 12 | 13 |
| 200 | 220 | 12 | 13 |
| 210 | 230 | 12 | 13 |
| 220 | 240 | 12 | 13 |
| 230 | 250 | 12 | 13 |
| 240 | 260 | 12 | 13 |
| 250 | 270 | 12 | 13 |
| 260 | 285 | 16 | 17 |
| 270 | 295 | 16 | 17 |
| 280 | 305 | 16 | 17 |
| 290 | 315 | 16 | 17 |
Ordering Information
Please send the required inner diameter, outer diameter, height, groove width, equipment model, and operating medium. We will check the available size and confirm the sealing arrangement before quotation.
Inquiry
Send the equipment model, required dimensions, operating medium, pressure, temperature, and quantity to confirm the correct rod seal. Contact JR Seal for technical matching and quotation.
