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Piston/Rod U-RING 56X71X9 BROWN FPM75
Family: Piston/Rod U-ring
Dimensions : 56.50 x 71.60 x 9.00
Material: FPM
Color:
BROWN
Part number: SPE05607109OZ75437M
Weight : 24.4800 gr.
Customs tariff code: 84129080
Country of origin: IN
Technical data
U-Ring | Profile | Material | Hardness | Bars | Temperature | Speed |
Piston / Rod | PU / TPU | 92 / 93 SH A | ≤350 | -20 to +100 ºC | ≤0,50 m/s | |
Piston / Rod | NBR | 90 SH A | ≤400 | -30 to +105 ºC | ≤0,50 m/s |
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PISTON/ROD U-RINGS
Symmetrical U-rings are very versatile as they can be used on both the piston and the rod. For hydraulic applications, PU or TPU are the standard materials while pneumatic applications will use NBR. Whether the application is single-acting or double-acting, this model offers high sealing efficiency as well as excellent resistance to abrasion, wear and friction. JIOrings offers a range of almost 2,000 standard sizes.
ADVANTAGES
- Superior static and dynamic sealing effect
- Economical sealing solution
- Simple groove design
- Easy assembly into closed grooves
APPLICATION
Construction machinery, fork-lift trucks , injection moulding machines, agricultural machinery, loading platforms and standard cylinders.
WORKING CONDITIONS
NBR90 | |||
MEDIA | Mineral oils (DIN 51524) | HFA & HFB | HFC |
TEMPERATURE | -30° C to +105 °C | +5 °C to +60 °C | -30 °C to +60 °C |
PRESSURE | ≤150 Bar | ≤150 Bar | ≤150 Bar |
SPEED | ≤0,5 m/sn | ≤0,5 m/sn | ≤0,5 m/sn |
PU92 / TPU92 / TPU93 | |||
MEDIA | Mineral oils (DIN 51524) | HFA & HFB | HFC |
TEMPERATURE | -30°C to +100°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 |
Note:
For special applications requiring high temperatures, U-rings can be manufactured in FPM.
ROUGHNESS SURFACE
Ra | Rmax | |
Dynamic surface | ≤0,3 μm | ≤3,0 μm |
Groove base | ≤1,8 μm | ≤10,0 μm |
Groove flanks | ≤3,2 μm | ≤16,0 μm |
INSTALLATION
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 |
dmin (mm) | 25 | 30 | 40 | 50 | 80 | 100 | 105 |
Maximum permissible gap NBR | |||
C/S | Pressure (Bar) | ||
50 | 100 | 160 | |
≤5 | 0.40 | 0.20 | 0.10 |
>5 | 0.45 | 0.25 | 0.15 |
Maximum permissible gap PU/TPU | |||
C/S | 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.