No products available yet
Stay tuned! More products will be shown here as they are added.
Stay tuned! More products will be shown here as they are added.
U-Ring | Profile | Material | Hardness | Bars | Temperature | Speed |
Rod | PU / TPU | 92 / 93 SH A | ≤400 | -40 to +105 ºC | ≤0,50 m/s |
Compact rod U-Rings have symmetrical lips and are generally used in single acting applications. Unlike standard rod U-rings design, this shape also has a lip on the inner face, which greatly improves sealing by reducing the thickness of the oil film and preventing contaminants from entering the system. Designed for small bore cylinders, the compact collar design generates a higher preload which is an advantage in lower pressures and long stroke cylinders. JIOrings offers a range of 130 standard sizes.
Construction machinery, forklift trucks, injection molding machines, agricultural machinery, mobile hydraulics, standard cylinders, loading platforms and telescopic cylinders.
TPU92 / TPU94 | |||
Media | Mineral oils (DIN 51524) | HFA & HFB | HFC |
Temperature | -40 °C to +105 °C | +5 °C to +50 °C | -30 °C to +40 °C |
Pressure | ≤400 Bar | ≤400 Bar | ≤400 Bar |
Speed | ≤0,5 m/sn | ≤0,5 m/sn | ≤0,5 m/sn |
TPU95 High performance | |||
Media | Mineral oils (DIN 51524) | HFA & HFB | HFC |
Temperature | -35 °C to +110 °C | +10 °C to +50 °C | -35 °C to +50 °C |
Pressure | ≤400 Bar | ≤400 Bar | ≤400 Bar |
Speed | ≤0,5 m/sn | ≤0,5 m/sn | ≤0,5 m/sn |
Roughness surface | ||
| Ra | Rmax |
Dynamic surface | ≤0,4 μm | ≤3,2 μm |
Groove base | ≤1,6 μm | ≤10,0 μm |
Groove flanks | ≤3,2 μm | ≤16,0 μm |
Easily assembled into closed grooves according to the minimum diameter values that are given in the below table. Open grooves or special assembly tools should be used for the values that are outside this table. It is very important that the assembly tools must be of soft material and have no sharp edges. Before installation the wiper must be oiled with system oil.
Minimum diametre values for closed type of grooves | |||||||
(D-d)/2 (mm) | 4 | 5 | 6 | 7,7 | 10 | 12,5 | 15 |
D min (mm) | 25 | 30 | 40 | 50 | 80 | 100 | 105 |
Maximum permissible gap PU/TPU | |||
Sección | Pressure (Bar) | ||
150 | 250 | 400 | |
≤5 | 0,30 | 0,20 | 0,15 |
>5 | 0,35 | 0,25 | 0,20 |
Note: The largest sealing gap value occurring on the non-pressurized side of the seal does have a vital importance for the function of the seal and in this respect it is quite important to use the S value lower than the above indicated numbers.