OR Rotary Seal
Descriptions
Producers of rotary distributors prefer simplified seal designs. This can be achieved
by means of profile OR internally sealing rotary sealing sets.
The OR sealing set consists of a wear-resistant, low-friction slipper sealing ring and
an elastomer O-ring as a preloading element.
It is suitable mainly for applications where the pressure alternates from one side of the
seal to the other, such as pivots for rotating track rings, swivel joints, hose reels, and
in machine tool hydraulics. If the sealing set is used as an end seal, it is recommended
to install a wiper ring at the end of the components.
Depending on the special working conditions, the rotary sealing set OR is equipped
with one or two circumferential lubricating grooves.
Features
• Good sealing performance in extremely
small assembly conditions.
• Excellent wear resistance.
• Minimal break-away and dynamic friction and no stick-slip tendency ensures
uniform motion even at low speeds.
• Good energy efficiency due to low friction.
• Insensitive to pressure peaks.
• High temperature resistance assured by
suitable O-ring compound selection.
• Improved lubrication due to pressure
medium deposit in the dynamic contact area.
• High extrusion resistance.
• Adaptable to nearly all media thanks to
high chemical resistance of the sealing
ring and large O-ring compound selection.
• Short axial assembly length.
• Installation in closed and undercut housings.
• Available in diameters from 4 to 3000 mm.
• Additional sizes of machined products
available on short notice.
Range of application
| Operating pressure | ≤ 300 bar |
| Operating temperature | -30 °C to +100 °C 1) |
| Sliding speed | ≤ 1 m/s |
Recommendation for rotary transmissions: P × v ≤ 25 (40)
(For definition see catalogue „Hydraulic Seals“, chapter „Rotary Seals“, introduction.)
1) With deviation from standard temperature range, please contact our consultancy service for adequate O-ring compound.
Compounds
Sealing ring: Polon® 033, modified PTFE + 25 % carbon.
O-ring: N0674, NBR elastomer with approx. 70 Shore A.
Installation
For diameters < 30 mm open grooves are required.
This seal should only be used in combination with closed guiding elements.
| Series no. | Cross section | O-ring cross section (mm) | Recommended shaft Ø range | Groove width | Groove depth | Gap max. 0–200 bar | Gap max. 200–400 bar | Radius max. | |
| d (mm) ≥ < | L (mm) | G (mm) | e (mm) | e (mm) | R 1 (mm) | ||||
| 160 | A | 1.78 | 4 | 8 | 2.2 | 2.45 | 0.4- 0.2 | 0.2- 0.1 | 0.5 |
| 160 | B | 2.62 | 8 | 19 | 3.2 | 3.75 | 0.4- 0.2 | 0.2- 0.1 | 0.5 |
| 160 | C | 3.53 | 19 | 38 | 4.2 | 5.5 | 0.6- 0.3 | 0.3- 0.2 | 0.5 |
| 160 | D | 5.33 | 38 | 200 | 6.3 | 7.75 | 0.8- 0.4 | 0.4- 0.2 | 0.9 |
| 160 | E | 6.99 | 200 | 256 | 8.1 | 10.5 | 1- 0.5 | 0.5- 0.3 | 0.9 |
| 160 | F | 6.99 | 256 | 650 | 8.1 | 12.25 | 1- 0.5 | 0.5- 0.3 | 0.9 |
| 160 | G | 8.4 | 650 | 1000 | 9.5 | 14 | 1- 0.5 | 0.5- 0.3 | 0.9 |
| Size | Groove | No. | O-ring | |||
| Ø d (mm) | Ø D (mm) | L (mm) | CS (mm) | ID (mm) | ||
| 40 | 4 | 8.9 | 2.2 | 2-010 | 1.78 | 6.07 |
| 60 | 6 | 10.9 | 2.2 | 2-011 | 1.78 | 7.65 |
| 80 | 8 | 12.9 | 2.2 | 2-012 | 1.78 | 9.25 |
| 100 | 10 | 14.9 | 2.2 | 2-013 | 1.78 | 10.82 |
| 120 | 12 | 16.9 | 2.2 | 2-015 | 1.78 | 14 |
| 140 | 14 | 18.9 | 2.2 | 2-016 | 1.78 | 15.6 |
| 160 | 16 | 20.9 | 2.2 | 2-017 | 1.78 | 17.17 |
| 170 | 17 | 21.9 | 2.2 | 2-018 | 1.78 | 18.77 |
| 180 | 18 | 22.9 | 2.2 | 2-019 | 1.78 | 20.35 |
| 190 | 19 | 26.5 | 3.2 | 2-118 | 2.62 | 21.89 |
| 200 | 20 | 27.5 | 3.2 | 2-119 | 2.62 | 23.47 |
| 220 | 22 | 29.5 | 3.2 | 2-120 | 2.62 | 25.07 |
| 240 | 24 | 31.5 | 3.2 | 2-121 | 2.62 | 26.64 |
| 250 | 25 | 32.5 | 3.2 | 2-122 | 2.62 | 28.24 |
| 270 | 27 | 34.5 | 3.2 | 2-123 | 2.62 | 29.82 |
| 280 | 28 | 35.5 | 3.2 | 2-124 | 2.62 | 31.41 |
| 300 | 30 | 37.5 | 3.2 | 2-125 | 2.62 | 32.99 |
| 320 | 32 | 39.5 | 3.2 | 2-126 | 2.62 | 34.59 |
| 330 | 33 | 40.5 | 3.2 | 2-127 | 2.62 | 36.17 |
| 350 | 35 | 42.5 | 3.2 | 2-128 | 2.62 | 37.77 |
| 360 | 36 | 43.5 | 3.2 | 2-129 | 2.62 | 39.34 |
| 370 | 37 | 44.5 | 3.2 | 2-130 | 2.62 | 40.94 |
| 380 | 38 | 49 | 4.2 | 2-223 | 3.53 | 40.87 |
| 400 | 40 | 51 | 4.2 | 2-224 | 3.53 | 44.04 |
| 420 | 42 | 53 | 4.2 | 2-225 | 3.53 | 47.22 |
| 450 | 45 | 56 | 4.2 | 2-226 | 3.53 | 50.39 |
| 480 | 48 | 59 | 4.2 | 2-227 | 3.53 | 53.57 |
| 500 | 50 | 61 | 4.2 | 2-228 | 3.53 | 56.74 |
| 550 | 55 | 66 | 4.2 | 2-229 | 3.53 | 59.92 |
| 600 | 60 | 71 | 4.2 | 2-230 | 3.53 | 63.09 |
| 630 | 63 | 74 | 4.2 | 2-231 | 3.53 | 66.27 |
| 650 | 65 | 76 | 4.2 | 2-232 | 3.53 | 69.44 |
| 700 | 70 | 81 | 4.2 | 2-233 | 3.53 | 72.62 |
| 750 | 75 | 86 | 4.2 | 2-235 | 3.53 | 78.97 |
| 800 | 80 | 91 | 4.2 | 2-237 | 3.53 | 85.32 |
| 850 | 85 | 96 | 4.2 | 2-238 | 3.53 | 88.49 |
| 900 | 90 | 101 | 4.2 | 2-240 | 3.53 | 94.84 |
| 950 | 95 | 106 | 4.2 | 2-242 | 3.53 | 101.19 |
| 1000 | 100 | 111 | 4.2 | 2-243 | 3.53 | 104.37 |
| 1100 | 110 | 121 | 4.2 | 2-246 | 3.53 | 113.89 |
| 1200 | 120 | 131 | 4.2 | 2-249 | 3.53 | 123.42 |
| 1300 | 130 | 141 | 4.2 | 2-252 | 3.53 | 132.94 |
| 1400 | 140 | 151 | 4.2 | 2-255 | 3.53 | 142.47 |
| 1500 | 150 | 161 | 4.2 | 2-258 | 3.53 | 151.99 |
| 1600 | 160 | 171 | 4.2 | 2-260 | 3.53 | 164.69 |
| 1700 | 170 | 181 | 4.2 | 2-261 | 3.53 | 171.04 |
| 1800 | 180 | 191 | 4.2 | 2-263 | 3.53 | 183.74 |
| 1900 | 190 | 201 | 4.2 | 2-264 | 3.53 | 190.09 |
| 2000 | 200 | 215.5 | 6.3 | 2-369 | 5.33 | 202.57 |
| 2100 | 210 | 225.5 | 6.3 | 2-371 | 5.33 | 215.27 |
| 2200 | 220 | 235.5 | 6.3 | 2-372 | 5.33 | 221.62 |
| 2300 | 230 | 245.5 | 6.3 | 2-374 | 5.33 | 234.32 |
| 2400 | 240 | 255.5 | 6.3 | 2-375 | 5.33 | 240.67 |
| 2500 | 250 | 265.5 | 6.3 | 2-377 | 5.33 | 253.37 |
| 2560 | 256 | 277 | 8.1 | 2-449 | 6.99 | 253.37 |
| 2600 | 260 | 281 | 8.1 | 2-450 | 6.99 | 266.07 |
| 2700 | 270 | 291 | 8.1 | 2-451 | 6.99 | 278.77 |
| 2800 | 280 | 301 | 8.1 | 2-451 | 6.99 | 278.77 |
| 2900 | 290 | 311 | 8.1 | 2-452 | 6.99 | 291.47 |
| 3000 | 300 | 321 | 8.1 | 2-453 | 6.99 | 304.17 |
| 3100 | 310 | 331 | 8.1 | 2-454 | 6.99 | 316.87 |
| 3200 | 320 | 241 | 8.1 | 2-455 | 6.99 | 329.57 |
| 3300 | 330 | 351 | 8.1 | 2-456 | 6.99 | 342.27 |
| 3400 | 340 | 361 | 8.1 | 2-457 | 6.99 | 354.97 |
| 3500 | 350 | 371 | 8.1 | 2-457 | 6.99 | 354.97 |
| 3600 | 360 | 281 | 8.1 | 2-458 | 6.99 | 367.67 |
| 3700 | 370 | 391 | 8.1 | 2-459 | 6.99 | 380.37 |
| 3800 | 380 | 401 | 8.1 | 2-460 | 6.99 | 393.07 |
| 3900 | 390 | 411 | 8.1 | 2-461 | 6.99 | 405.26 |
| 4000 | 400 | 421 | 8.1 | 2-461 | 6.99 | 405.26 |
| 4200 | 420 | 431 | 8.1 | 2-462 | 6.99 | 430.66 |
| 4500 | 450 | 471 | 8.1 | 2-465 | 6.99 | 456.06 |
| 4700 | 470 | 491 | 8.1 | 2-467 | 6.99 | 481.46 |
| 5000 | 500 | 521 | 8.1 | 2-469 | 6.99 | 506.86 |
| 5300 | 530 | 551 | 8.1 | 2-470 | 6.99 | 532.26 |
| 5500 | 550 | 571 | 8.1 | 2-471 | 6.99 | 557.66 |
| 5800 | 580 | 601 | 8.1 | 2-472 | 6.99 | 582.68 |
| 6000 | 600 | 621 | 8.1 | 2-473 | 6.99 | 608.08 |
| 6200 | 620 | 641 | 8.1 | 2-473 | 6.99 | 608.08 |
| 6400 | 640 | 661 | 8.1 | 2-474 | 6.99 | 633.48 |
| 6500 | 650 | 678 | 9.5 | – | 8.4 | 649 |
| 8000 | 800 | 828 | 9.5 | – | 8.4 | 810 |