GSZ2 - High Quality PTFE Hydraulic Scraper Seal with NBR/FKM O-Ring
GSZ2
Quantity:
1. Application and properties
Suitable for reciprocating oil and cylinder under harsh working conditions, mainly used in hydraulic and pneumatic devices, servo systems, chemical and food equipment. Excellent sliding performance, no stick-slip or crawling phenomenon, can compensate for large deformation of piston rod and plunger, very good compatibility with hydraulic media, can effectively erase the remaining oil film adhering to the surface of the piston rod from the inside.
Small groove size for easy installation.
Operating temperature range from -30°C to +160°C.
Can be used for special working conditions such as high speed, extremely low speed, micro-stroke, etc.
Can be used for rotary shaft seals. Can adapt to large eccentricity and runout.
2. Standard material
Sealing ring: filled PTFE
O-Ring: NBR / FKM
3. Working conditions
Working conditions | |||
Diameter Range | Temperature Range°C | Speed | Medium |
5~2000mm | -30~100(NBR) -20~160(FKM) | 5m/s | Hydraulic oil, flame retardant liquid, water, |

4. Related Dimensions:
R1=0.2~0.3; R2=0.2; R3=0.3~0.5; e=0.05~0.5; C=(0.5~1.0)L; The specific values are selected according to the section size of the seal. The remaining values are listed in the table below:
| Rod Diameter | Groove | Groove | Diameter | Step Width | O-Ring |
| Diameter | Width | Cross-Section | |||
| d | D | L | D1 | a | d1 |
| 4.0~11.9 | d+4.8 | 3.7 | d+1.5 | 2 | 1.78 |
| 12.1~64.9 | d+6.8 | 5 | d+1.5 | 2 | 2.62 |
| 65.0~250.9 | d+8.8 | 6 | d+1.5 | 3 | 3.53 |
| 251.0~420.9 | d+12.2 | 8.4 | d+2.0 | 4 | 5.33 |
| 421.0~650.9 | d+16.0 | 11 | d+2.0 | 4 | 6.99 |
| 651.0~999.9 | d+20.0 | 14 | d+2.5 | 5 | 8.4 |
| >1000.0 | d+20.0 | 14 | d+2.5 | 5 | 8.4 |
5. Marking method:
Mark with the dimension of installation groove as below
For example: GSZ2-100×108.8×6
6. Installation Dimensions
| Rod Dia | Groove | Groove | Step Width | Part No. | Rod Dia | Groove | Groove | Step Width | Part No. | |
| Dia | Width | Dia | Width | |||||||
| d | D | L | a | d | D | L | a | |||
| 6 | 10.8 | 3.7 | 2 | GSZ2-0060 | 125 | 133.8 | 6 | 3 | GSZ2-1250 | |
| 8 | 12.8 | 3.7 | 2 | GSZ2-0080 | 130 | 138.8 | 6 | 3 | GSZ2-1300 | |
| 10 | 14.8 | 3.7 | 2 | GSZ2-0100 | 135 | 143.8 | 6 | 3 | GSZ2-1350 | |
| 12 | 18.8 | 5 | 2 | GSZ2-0120 | 140 | 148.8 | 6 | 3 | GSZ2-1400 | |
| 14 | 20.8 | 5 | 2 | GSZ2-0140 | 145 | 153.8 | 6 | 3 | GSZ2-1450 | |
| 15 | 21.8 | 5 | 2 | GSZ2-0150 | 150 | 158.8 | 6 | 3 | GSZ2-1500 | |
| 16 | 22.8 | 5 | 2 | GSZ2-0160 | 160 | 168. 8 | 6 | 3 | GSZ2-1600 | |
| 18 | 24.8 | 5 | 2 | GSZ2-0180 | 170 | 178. 8 | 6 | 3 | GSZ2-1700 | |
| 20 | 26.8 | 5 | 2 | GSZ2-0200 | 180 | 188. 8 | 6 | 3 | GSZ2-1800 | |
| 22 | 28.8 | 5 | 2 | GSZ2-0220 | 190 | 198.8 | 6 | 3 | GSZ2-1900 | |
| 25 | 31.8 | 5 | 2 | GSZ2-0250 | 200 | 208.8 | 6 | 3 | GSZ2-2000 | |
| 30 | 36.8 | 5 | 2 | GSZ2-0300 | 210 | 218.8 | 6 | 3 | GSZ2-2100 | |
| 32 | 38.8 | 5 | 2 | GSZ2-0320 | 220 | 228. 8 | 6 | 3 | GSZ2-2200 | |
| 35 | 41.8 | 5 | 2 | GSZ2-0350 | 230 | 238. 8 | 6 | 3 | GSZ2-2300 | |
| 36 | 42.8 | 5 | 2 | GSZ2-0360 | 240 | 248. 8 | 6 | 3 | GSZ2-2400 | |
| 37 | 43.8 | 5 | 2 | GSZ2-0370 | 250 | 258.8 | 6 | 3 | GSZ2-2500 | |
| 40 | 46.8 | 5 | 2 | GSZ2-0400 | 260 | 272. 2 | 8.4 | 4 | GSZ2-2600 | |
| 42 | 48.8 | 5 | 2 | GSZ2-0420 | 280 | 292.2 | 8.4 | 4 | GSZ2-2800 | |
| 45 | 51.8 | 5 | 2 | GSZ2-0450 | 300 | 312. 2 | 8.4 | 4 | GSZ2-3000 | |
| 50 | 56.8 | 5 | 2 | GSZ2-0500 | 320 | 332. 2 | 8.4 | 4 | GSZ2-3200 | |
| 55 | 61.8 | 5 | 2 | GSZ2-0550 | 350 | 362. 2 | 8.4 | 4 | GSZ2-3500 | |
| 56 | 62.8 | 5 | 2 | GSZ2-0560 | 360 | 372. 2 | 8.4 | 4 | GSZ2-3600 | |
| 60 | 66.8 | 5 | 2 | GSZ2-0600 | 370 | 382. 2 | 8.4 | 4 | GSZ2-3700 | |
| 63 | 69.8 | 5 | 2 | GSZ2-0630 | 400 | 412. 2 | 8.4 | 4 | GSZ2-4000 | |
| 65 | 73.8 | 6 | 3 | GSZ2-0650 | 440 | 456 | 11 | 4 | GSZ2-4400 | |
| 70 | 78.8 | 6 | 3 | GSZ2-0700 | 480 | 496 | 11 | 4 | GSZ2-4800 | |
| 75 | 83.8 | 6 | 3 | GSZ2-0750 | 600 | 616 | 11 | 4 | GSZ2-6000 | |
| 80 | 88.8 | 6 | 3 | GSZ2-0800 | 630 | 646 | 11 | 4 | GSZ2-6300 | |
| 85 | 93.8 | 6 | 3 | GSZ2-0850 | 680 | 700 | 14 | 5 | GSZ2-6800 | |
| 90 | 98.8 | 6 | 3 | GSZ2-0900 | 700 | 720 | 14 | 5 | GSZ2-7000 | |
| 95 | 103.8 | 6 | 3 | GSZ2-0950 | 770 | 790 | 14 | 5 | GSZ2-7700 | |
| 100 | 108.8 | 6 | 3 | GSZ2-1000 | 820 | 840 | 14 | 5 | GSZ2-8200 | |
| 105 | 113.8 | 6 | 3 | GSZ2-1050 | 880 | 900 | 14 | 5 | GSZ2-8800 | |
| 110 | 118.8 | 6 | 3 | GSZ2-1100 | 900 | 920 | 14 | 5 | GSZ2-9000 | |
| 115 | 123.8 | 6 | 3 | GSZ2-1150 | 1030 | 1050 | 14 | 5 | GSZ2-10300 | |
| 120 | 128.8 | 6 | 3 | GSZ2-1200 |