The spring tension sealing ring for shafts is a one-way seal composed of a metal cantilever spring and a mechanically processed filled polytetrafluoroethylene sealing sleeve, used in low-speed, medium speed reciprocating or low-speed rotating motion applications. Including hydraulic cylinders and air cylinders. It has multiple different structural forms and a wide range of sealing pressures, from vacuum to zero pressure and ultra-high pressure, all of which can ensure reliable sealing requirements. For low viscosity media, the sealing effect of hot melt adhesive media is better. For the pharmaceutical and food processing industries, due to the requirements of disinfection and strict chemical cleaning agents, the cavity at the spring can be filled with silicone to prevent contaminants from entering.
Technical data
pressure
80MPa (static load)
40MPa (dynamic load)
speed
Static and slow rotation
temperature
-70℃~+260℃
medium
All liquids, chemicals, and gases
surface roughness
Ra
Rt
Surface of piston rod
≤0,3μm
≤3μm
Bottom of groove
≤1,6μm
≤6,3μm
Side of groove
≤1,6μm
≤16μm
advantage
- Can be used for reciprocating and rotating motion
- Can adapt to the vast majority of fluids and chemicals
- Low friction coefficient
- Will not crawl even with precise control
Strong anti-corrosion ability and good dimensional stability
- Able to withstand rapid temperature changes
- Will not contaminate food and pharmaceutical liquids
- Can be disinfected, - unlimited storage period
Installation dimension data
shaft diameter dh9 | Groove diameter DH9 | trench width L+0,2 | radius r | Stop heightX | Maximum radial clearance Smax | |||
2MPa | 10MPa | 20MPa | 40MPa | |||||
3,0—9,9 | d+2,9 | 2,4 | 0,4 | 0,4 | 0,20 | 0,10 | 0,08 | 0,05 |
10,0—19,9 | d+4,5 | 3,6 | 0,4 | 0,6 | 0,25 | 0,15 | 0,10 | 0,07 |
20,0—39,9 | d+6,2 | 4,8 | 0,6 | 0,7 | 0,35 | 0,20 | 0,15 | 0,08 |
40,0—119,9 | d+9,4 | 7,1 | 0,8 | 0,8 | 0,50 | 0,25 | 0,20 | 0,10 |
120,0—999,9 | d+12,2 | 9,5 | 0,8 | 0,9 | 0,60 | 0,30 | 0,25 | 0,12 |
Ordering information for spring tension sealing ring for shaft (unit: mm)
| Order model | rod diameter dh9 | Groove diameter DH9 | trench width L+0,2 | Order model | rod diameter dh9 | Groove diameter DH9 | trench width L+0,2 | |
S003 | 3 | 5,9 | 2,4 | S075 | 75 | 84,4 | 7,1 | |
S004 | 4 | 6,9 | 2,4 | S080 | 80 | 89,4 | 7,1 | |
S005 | 5 | 7,9 | 2,4 | S085 | 85 | 94,4 | 7,1 | |
S006 | 6 | 8,9 | 2,4 | S090 | 90 | 99,4 | 7,1 | |
S008 | 8 | 10,9 | 2,4 | S095 | 95 | 104,4 | 7,1 | |
S010 | 10 | 14,5 | 3,6 | S100 | 100 | 109,4 | 7,1 | |
S012 | 12 | 16,5 | 3,6 | S105 | 105 | 114,4 | 7,1 | |
S014 | 14 | 18,5 | 3,6 | S110 | 110 | 119,4 | 7,1 | |
S015 | 15 | 19,5 | 3,6 | S115 | 115 | 124,4 | 7,1 | |
S016 | 16 | 20,5 | 3,6 | S120 | 120 | 132,2 | 9,5 | |
S018 | 18 | 22,5 | 3,6 | S125 | 125 | 137,2 | 9,5 | |
S020 | 20 | 26,2 | 4,8 | S130 | 130 | 142,2 | 9,5 | |
S022 | 22 | 28,2 | 4,8 | S135 | 135 | 147,2 | 9,5 | |
S025 | 25 | 31,2 | 4,8 | S140 | 140 | 152,2 | 9,5 | |
S028 | 28 | 34,2 | 4,8 | S150 | 150 | 162,2 | 9,5 | |
S030 | 30 | 36,2 | 4,8 | S160 | 160 | 172,2 | 9,5 | |
S032 | 32 | 38,2 | 4,8 | S170 | 170 | 182,2 | 9,5 | |
S035 | 35 | 41,2 | 4,8 | S180 | 180 | 192,2 | 9,5 | |
S036 | 36 | 42,2 | 4,8 | S190 | 190 | 202,2 | 9,5 | |
S040 | 40 | 49,4 | 7,1 | S200 | 200 | 212,2 | 9,5 | |
S042 | 42 | 51,4 | 7,1 | S210 | 210 | 222,2 | 9,5 | |
S045 | 45 | 54,4 | 7,1 | S220 | 220 | 232,2 | 9,5 | |
S048 | 48 | 57,4 | 7,1 | S230 | 230 | 242,2 | 9,5 | |
S050 | 50 | 59,4 | 7,1 | S240 | 240 | 252,2 | 9,5 | |
S052 | 52 | 61,4 | 7,1 | S250 | 250 | 262,2 | 9,5 | |
S055 | 55 | 64,4 | 7,1 | S280 | 280 | 292,2 | 9,5 | |
S056 | 56 | 65,4 | 7,1 | S300 | 300 | 312,2 | 9,5 | |
S060 | 60 | 69,4 | 7,1 | S320 | 320 | 332,2 | 9,5 | |
S063 | 63 | 72,4 | 7,1 | S350 | 350 | 362,2 | 9,5 | |
S065 | 65 | 74,4 | 7,1 | S360 | 360 | 372,2 | 9,5 | |
S070 | 70 | 79,4 | 7,1 | S400 | 400 | 412,2 | 9,5 |
