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Piston/Rod U-RING 260X290X18/19 BLUE TPU93
Part number: UN260290
Weight : 243.0000 gr.
Customs tariff code: 84129080
Country of origin: TW
Piston/Rod U-RING 264X280X18/19 BLUE TPU93
Part number: UN264280
Weight : 133.0000 gr.
Customs tariff code: 84129080
Country of origin: TW
Piston/Rod U-RING 265X290X19/20 BLUE TPU93
Part number: UN265290
Weight : 220.7600 gr.
Customs tariff code: 84129080
Country of origin: TW
Piston/Rod U-RING 265X295X19/20 BLUE TPU93
Part number: UN265295
Weight : 262.0000 gr.
Customs tariff code: 84129080
Country of origin: TW
Piston/Rod U-ring
Piston/Rod U-RING 270X300X15/16 BLUE TPU93
270.00
x
300.00
x
15.00
TPU
93 Sh A
0
5 Units
- 29/07/2024
Piston/Rod U-RING 270X300X15/16 BLUE TPU93
Part number: UN270300
Weight : 206.4000 gr.
Customs tariff code: 84129080
Country of origin: TW
COLLARIN 270X290X17/18 UN POLIURETANO
Part number: TTU270290
Weight : 0.0000 gr.
Customs tariff code: -
Country of origin: IT
Piston/Rod U-RING 270X300X18/19 BLUE TPU93
Part number: UN270300/1
Weight : 250.7900 gr.
Customs tariff code: 84129080
Country of origin: TW
Piston/Rod U-ring
Piston/Rod U-RING 270X300X22/23 BLUE TPU92
270.00
x
300.00
x
22.00
TPU
92 Sh A
0
2 Units
- 10/05/2024
Piston/Rod U-RING 270X300X22/23 BLUE TPU92
Part number: A101270300PU92482
Weight : 298.5000 gr.
Customs tariff code: 84129080
Country of origin: TR
Piston/Rod U-RING 275X300X16/17 BLUE TPU93
Part number: UN275300
Weight : 187.2000 gr.
Customs tariff code: 84129080
Country of origin: TW
Piston/Rod U-RING 280X300X14/15 BLUE TPU92
Part number: A101280300PU92482
Weight : 134.5000 gr.
Customs tariff code: 84129080
Country of origin: TR
Piston/Rod U-RING 280X300X15/16 BLUE TPU93
Part number: UN280300
Weight : 145.4000 gr.
Customs tariff code: 84129080
Country of origin: TW
Piston/Rod U-RING 280X300X16/17 BLUE TPU93
Part number: UN280300/1
Weight : 154.2000 gr.
Customs tariff code: 84129080
Country of origin: TW
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 |
Quick Links
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.