CRRROD SEALS
CRR
The PTFE rod seal set CRR consists off a PTFE-face seal which takes care of the dynamic sealing on the inside diameter of the rod and a clamped O-Ring which provides a pretension on the face seal and transfers the static sealing on the outside diameter. With intensified pressure of the system, the O-Ring pretension increases, caused to the design and therewith the contact pressure of the face seal against the rod. To be sealed are piston-rods and plungers within hydraulic cylinders, if compared to sealing with elastomeric seals, a lower friction is wanted.
ADVANTAGES ARE
- low sliding friction and breakaway, low stick-slip effect for consistant motion, even with low sliding speed
- highly extrusion resistant
- low abrasion
- highly temperature resistant
- multiple applications, through appropriate selection of O-Ring compound
- flexible chemical compatibility through appropriate selection of O-Ring compound
- available up to 2000 mm diameter
PLEASE NOTE
With this sealing profile it’s very important to achieve an exact guidance of the metal components through guide-tapes or wear-rings.
| APPLICATION RANGE | |
| working pressure: | ≤ 35 MPa (350 bar) |
| operation temperature: | -30 to +100 °C* >FKM 200 °C< |
| sliding Speed: | ≤ 4 m/s |
MOUNTING INSTRUCTIONS
With a diameter of <10 mm open seal housings are necessary.
INSTALLATION
For diameters < 10 mm open grooves are required.
| MATERIAL | |
| sealing rings: | modified PTFE (PT012) |
| O-rings: | NBR-elastomer with approximately 70 Shore A |
In certain cases (high temperature, speed, specificresistance to pressure, or use of water, HFA-, HFB- fluids a.s.o.), we advise to take another sealing cross section, or please contact with our application technology.
ORDER EXAMPLE
Rod diameter = 50 mm
CRR 0500 PT012 70N1 D
| CRR = | Profile |
| 0500 = | Rod Ø x 10 |
| PTO12 = | Compound |
| 70N1 = | Serial number, Last digit: O-ring code |
| D = | Cross section |
* according to compound selection of the O-Ring
HOUSING DIMENSIONS
| Series No. | Cross-section | O-ring | Recommended rod Ø range | Groove width | Groove depth | Gap max. | Radius max. | |
| cross-section | d (mm) | |||||||
| (mm) | ≥ | < | L (mm) | G (mm) | e (mm) | R1 (mm) | ||
| Housing dimensions for O-Ring grooves without back-up ring | ||||||||
| 70N1 | A | 1,78 | 4 | 10 | 2,4 | 1,45 | 0,13 | 0,5 |
| 70N1 | B | 2,62 | 10 | 20 | 3,6 | 2,25 | 0,13 | 0,5 |
| 70N1 | C | 3,53 | 20 | 40 | 4,8 | 3,1 | 0,15 | 0,5 |
| 70N1 | D | 5,33 | 40 | 120 | 7,1 | 4,7 | 0,17 | 0,9 |
| 70N1 | E | 6,99 | 120 | 400 | 9,5 | 6,1 | 0,25 | 0,9 |
| Housing dimensions for O-Ring grooves with 1 back-up ring | ||||||||
| 71N1 | A | 1,78 | 4 | 10 | 3,8 | 1,45 | 0,13 | 0,5 |
| 71N1 | B | 2,62 | 10 | 20 | 5,0 | 2,25 | 0,13 | 0,5 |
| 71N1 | C | 3,53 | 20 | 40 | 6,2 | 3,1 | 0,15 | 0,5 |
| 71N1 | D | 5,33 | 40 | 120 | 8,8 | 4,7 | 0,17 | 0,9 |
| 71N1 | E | 6,99 | 120 | 400 | 10,5 | 6,1 | 0,25 | 0,9 |
| Housing dimensions for O-Ring grooves with 2 back-up rings | ||||||||
| 72N1 | A | 1,78 | 4 | 10 | 3,8 | 1,45 | 0,13 | 0,5 |
| 72N1 | B | 2,62 | 10 | 20 | 5,0 | 2,25 | 0,13 | 0,5 |
| 72N1 | C | 3,53 | 20 | 40 | 6,2 | 3,1 | 0,15 | 0,5 |
| 72N1 | D | 5,33 | 40 | 120 | 8,8 | 4,7 | 0,17 | 0,9 |
| 72N1 | E | 6,99 | 120 | 400 | 10,5 | 6,1 | 0,25 | 0,9 |
Special sizes are available quickly.
O-RING DESIGNATIONS IN PTFE-SEALS
| Material | Härte | OR-Code |
| NBR | 70+/-5 | N1 |
| FKM | 75+/-5 | V2 |
| NB 304 (HNBR) | 75+/-5 | N3 |
| EPDM | 75+/-5 | E4 |
| NB 578 | 75+/-5 | N5 |
| NBR | 90+/-5 | N6 |
| Silikon | 70+/-5 | S7 |
| HNBR | 80+/-5 | N8 |
| FFKM | 80+/-5 | V9 |
| Einbauraum/Groove | O-Ring/Schnur Ø | Bestell-Nr. / Order Code | ||||
|---|---|---|---|---|---|---|
| Ød | ØD | L | Nr. | Ø/CS | ID | |
| 4 | 6,9 | 2,4 | AS008 | 1,78 | 4,47 | CRR 0040 PT012 70N1 A |
| " | " | 3,8 | " | " | " | CRR 0040 PT012 71N1 A |
| " | " | 5,2 | " | " | " | CRR 0040 PT012 72N1 A |
| 5 | 7,9 | 2,4 | AS009 | 1,78 | 5,28 | CRR 0050 PT012 70N1 A |
| " | " | 3,8 | " | " | " | CRR 0050 PT012 71N1 A |
| " | " | 5,2 | " | " | " | CRR 0050 PT012 72N1 A |
| 6 | 8,9 | 2,4 | AS010 | 1,78 | 6,07 | CRR 0060 PT012 70N1 A |
| " | " | 3,8 | " | " | " | CRR 0060 PT012 71N1 A |
| " | " | 5,2 | " | " | " | CRR 0060 PT012 72N1 A |
| 8 | 10,9 | 2,4 | AS011 | 1,78 | 7,65 | CRR 0080 PT012 70N1 A |
| " | " | 3,8 | " | " | " | CRR 0080 PT012 71N1 A |
| " | " | 5,2 | " | " | " | CRR 0080 PT012 72N1 A |
| 10 | 14,5 | 3,6 | AS111 | 2,62 | 10,77 | CRR 0100 PT012 70N1 B |
| " | " | 5 | " | " | " | CRR 0100 PT012 71N1 B |
| " | " | 6,4 | " | " | " | CRR 0100 PT012 72N1 B |
| 12 | 16,5 | 3,6 | AS112 | 2,62 | 12,37 | CRR 0120 PT012 70N1 B |
| " | " | 5 | " | " | " | CRR 0120 PT012 71N1 B |
| " | " | 6,4 | " | " | " | CRR 0120 PT012 72N1 B |
| 14 | 18,5 | 3,6 | AS113 | 2,62 | 13,94 | CRR 0140 PT012 70N1 B |
| " | " | 5 | " | " | " | CRR 0140 PT012 71N1 B |
| " | " | 6,4 | " | " | " | CRR 0140 PT012 72N1 B |
| 15 | 19,5 | 3,6 | AS114 | 2,62 | 15,54 | CRR 0150 PT012 70N1 B |
| " | " | 5 | " | " | " | CRR 0150 PT012 71N1 B |
| " | " | 6,4 | " | " | " | CRR 0150 PT012 72N1 B |
| 16 | 20,5 | 3,6 | AS114 | 2,62 | 15,54 | CRR 0160 PT012 70N1 B |
| " | " | 5 | " | " | " | CRR 0160 PT012 71N1 B |
| " | " | 6,4 | " | " | " | CRR 0160 PT012 72N1 B |
| 18 | 22,5 | 3,6 | AS116 | 2,62 | 18,72 | CRR 0180 PT012 70N1 B |
| " | " | 5 | " | " | " | CRR 0180 PT012 71N1 B |
| " | " | 6,4 | " | " | " | CRR 0180 PT012 72N1 B |
| 20 | 26,2 | 4,8 | AS211 | 3,53 | 20,22 | CRR 0200 PT012 70N1 C |
| " | " | 6,2 | " | " | " | CRR 0200 PT012 71N1 C |
| " | " | 7,6 | " | " | " | CRR 0200 PT012 72N1 C |
| 22 | 28,2 | 4,8 | AS212 | 3,53 | 21,82 | CRR 0220 PT012 70N1 C |
| " | " | 6,2 | " | " | " | CRR 0220 PT012 71N1 C |
| " | " | 7,6 | " | " | " | CRR 0220 PT012 72N1 C |
| 25 | 31,2 | 4,8 | AS214 | 3,53 | 24,99 | CRR 0250 PT012 70N1 C |
| " | " | 6,2 | " | " | " | CRR 0250 PT012 71N1 C |
| " | " | 7,6 | " | " | " | CRR 0250 PT012 72N1 C |
| 30 | 36,2 | 4,8 | AS217 | 3,53 | 29,32 | CRR 0300 PT012 70N1 C |
| " | " | 6,2 | " | " | " | CRR 0300 PT012 71N1 C |
| " | " | 7,6 | " | " | " | CRR 0300 PT012 72N1 C |
| 32 | 38,2 | 4,8 | AS219 | 3,53 | 32,92 | CRR 0320 PT012 70N1 C |
| " | " | 6,2 | " | " | " | CRR 0320 PT012 71N1 C |
| " | " | 7,6 | " | " | " | CRR 0320 PT012 72N1 C |
| 35 | 41,2 | 4,8 | AS220 | 3,53 | 34,52 | CRR 0350 PT012 70N1 C |
| " | " | 6,2 | " | " | " | CRR 0350 PT012 71N1 C |
| " | " | 7,6 | " | " | " | CRR 0350 PT012 72N1 C |
| 36 | 42,2 | 4,8 | AS221 | 3,53 | 36,09 | CRR 0360 PT012 70N1 C |
| " | " | 6,2 | " | " | " | CRR 0360 PT012 71N1 C |
| " | " | 7,6 | " | " | " | CRR 0360 PT012 72N1 C |
| 40 | 49,4 | 7,1 | AS326 | 5,33 | 40,64 | CRR 0400 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 0400 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 0400 PT012 72N1 D |
| 45 | 54,4 | 7,1 | AS327 | 5,33 | 43,82 | CRR 0450 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 0450 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 0450 PT012 72N1 D |
| 48 | 57,4 | 7,1 | AS328 | 5,33 | 46,99 | CRR 0480 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 0480 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 0480 PT012 72N1 D |
| 50 | 59,4 | 7,1 | AS329 | 5,33 | 50,17 | CRR 0500 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 0500 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 0500 PT012 72N1 D |
| 52 | 61,4 | 7,1 | AS329 | 5,33 | 50,17 | CRR 0520 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 0520 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 0520 PT012 72N1 D |
| 56 | 65,4 | 7,1 | AS331 | 5,33 | 56,52 | CRR 0560 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 0560 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 0560 PT012 72N1 D |
| 60 | 69,4 | 7,1 | AS332 | 5,33 | 59,69 | CRR 0600 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 0600 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 0600 PT012 72N1 D |
| 63 | 72,4 | 7,1 | AS333 | 5,33 | 62,87 | CRR 0630 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 0630 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 0630 PT012 72N1 D |
| 65 | 74,4 | 7,1 | AS334 | 5,33 | 66,04 | CRR 0650 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 0650 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 0650 PT012 72N1 D |
| 70 | 79,4 | 7,1 | AS335 | 5,33 | 69,22 | CRR 0700 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 0700 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 0700 PT012 72N1 D |
| 75 | 84,4 | 7,1 | AS337 | 5,33 | 75,57 | CRR 0750 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 0750 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 0750 PT012 72N1 D |
| 80 | 89,4 | 7,1 | AS338 | 5,33 | 78,74 | CRR 0800 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 0800 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 0800 PT012 72N1 D |
| 85 | 94,4 | 7,1 | AS340 | 5,33 | 85,09 | CRR 0850 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 0850 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 0850 PT012 72N1 D |
| 90 | 99,4 | 7,1 | AS342 | 5,33 | 91,44 | CRR 0900 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 0900 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 0900 PT012 72N1 D |
| 95 | 104,4 | 7,1 | AS343 | 5,33 | 94,62 | CRR 0950 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 0950 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 0950 PT012 72N1 D |
| 100 | 109,4 | 7,1 | AS345 | 5,33 | 100,97 | CRR 1000 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 1000 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 1000 PT012 72N1 D |
| 105 | 114,4 | 7,1 | AS346 | 5,33 | 104,14 | CRR 1050 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 1050 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 1050 PT012 72N1 D |
| 110 | 119,4 | 7,1 | AS348 | 5,33 | 110,94 | CRR 1100 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 1100 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 1100 PT012 72N1 D |
| 115 | 124,4 | 7,1 | AS350 | 5,33 | 116,84 | CRR 1150 PT012 70N1 D |
| " | " | 8,8 | " | " | " | CRR 1150 PT012 71N1 D |
| " | " | 10,5 | " | " | " | CRR 1150 PT012 72N1 D |
| 120 | 132,2 | 9,5 | AS427 | 6,99 | 120,02 | CRR 1200 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 1200 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 1200 PT012 72N1 E |
| 125 | 137,2 | 9,5 | AS429 | 6,99 | 126,37 | CRR 1250 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 1250 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 1250 PT012 72N1 E |
| 130 | 142,2 | 9,5 | AS430 | 6,99 | 129,54 | CRR 1300 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 1300 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 1300 PT012 72N1 E |
| 135 | 127,2 | 9,5 | AS432 | 6,99 | 135,89 | CRR 1350 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 1350 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 1350 PT012 72N1 E |
| 140 | 152,2 | 9,5 | AS433 | 6,99 | 139,07 | CRR 1400 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 1400 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 1400 PT012 72N1 E |
| 150 | 162,2 | 9,5 | AS437 | 6,99 | 151,77 | CRR 1500 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 1500 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 1500 PT012 72N1 E |
| 160 | 172,2 | 9,5 | AS438 | 6,99 | 158,12 | CRR 1600 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 1600 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 1600 PT012 72N1 E |
| 170 | 182,2 | 9,5 | AS440 | 6,99 | 170,82 | CRR 1700 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 1700 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 1700 PT012 72N1 E |
| 180 | 192,2 | 9,5 | AS442 | 6,99 | 183,52 | CRR 1800 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 1800 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 1800 PT012 72N1 E |
| 190 | 202,2 | 9,5 | AS443 | 6,99 | 189,87 | CRR 1900 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 1900 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 1900 PT012 72N1 E |
| 200 | 212,2 | 9,5 | AS445 | 6,99 | 202,57 | CRR 2000 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 2000 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 2000 PT012 72N1 E |
| 210 | 222,2 | 9,5 | AS446 | 6,99 | 215,27 | CRR 2100 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 2100 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 2100 PT012 72N1 E |
| 220 | 232,2 | 9,5 | AS446 | 6,99 | 215,27 | CRR 2200 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 2200 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 2200 PT012 72N1 E |
| 230 | 242,2 | 9,5 | AS447 | 6,99 | 227,97 | CRR 2300 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 2300 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 2300 PT012 72N1 E |
| 240 | 252,2 | 9,5 | AS448 | 6,99 | 240,67 | CRR 2400 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 2400 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 2400 PT012 72N1 E |
| 250 | 262,2 | 9,5 | AS449 | 6,99 | 253,37 | CRR 2500 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 2500 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 2500 PT012 72N1 E |
| 260 | 272,2 | 9,5 | AS450 | 6,99 | 266,07 | CRR 2600 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 2600 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 2600 PT012 72N1 E |
| 270 | 282,2 | 9,5 | AS450 | 6,99 | 266,07 | CRR 2700 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 2700 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 2700 PT012 72N1 E |
| 280 | 292,2 | 9,5 | AS451 | 6,99 | 278,77 | CRR 2800 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 2800 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 2800 PT012 72N1 E |
| 290 | 302,2 | 9,5 | AS452 | 6,99 | 291,47 | CRR 2900 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 2900 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 2900 PT012 72N1 E |
| 300 | 312,2 | 9,5 | AS453 | 6,99 | 304,17 | CRR 3000 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 3000 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 3000 PT012 72N1 E |
| 310 | 322,2 | 9,5 | AS454 | 6,99 | 316,87 | CRR 3100 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 3100 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 3100 PT012 72N1 E |
| 320 | 332,2 | 9,5 | AS454 | 6,99 | 316,87 | CRR 3200 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 3200 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 3200 PT012 72N1 E |
| 330 | 342,2 | 9,5 | AS455 | 6,99 | 329,57 | CRR 3300 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 3300 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 3300 PT012 72N1 E |
| 340 | 352,2 | 9,5 | AS456 | 6,99 | 342,27 | CRR 3400 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 3400 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 3400 PT012 72N1 E |
| 350 | 362,2 | 9,5 | AS457 | 6,99 | 354,97 | CRR 3500 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 3500 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 3500 PT012 72N1 E |
| 360 | 372,2 | 9,5 | AS457 | 6,99 | 354,97 | CRR 3600 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 3600 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 3600 PT012 72N1 E |
| 370 | 382,2 | 9,5 | AS458 | 6,99 | 367,67 | CRR 3700 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 3700 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 3700 PT012 72N1 E |
| 380 | 392,2 | 9,5 | AS459 | 6,99 | 380,37 | CRR 3800 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 3800 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 3800 PT012 72N1 E |
| 390 | 402,2 | 9,5 | AS460 | 6,99 | 393,07 | CRR 3900 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 3900 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 3900 PT012 72N1 E |
| 400 | 412,2 | 9,5 | AS461 | 6,99 | 405,26 | CRR 4000 PT012 70N1 E |
| " | " | 12 | " | " | " | CRR 4000 PT012 71N1 E |
| " | " | 14,5 | " | " | " | CRR 4000 PT012 72N1 E |
Further sizes on request. | ||||||
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