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Piston/Rod U-RING 7,93X14,28X6,35 (5/16x9/16x1/4) BEIGE PU93
Part number: CPUP007014PU93478
Weight : 0.7100 gr.
Customs tariff code: 84129080
Country of origin: GB
Piston/Rod U-RING 12X20X8,40/9,40 BEIGE PU93
Part number: CPU012020PU93478
Weight : 1.8000 gr.
Customs tariff code: 84129080
Country of origin: GB
COLLARIN Pistón/Vástago 14X25X6,10/7,10 PU93 AMARILLO
Part number: CPU014025PU93478
Weight : 1.8900 gr.
Customs tariff code: 84129080
Country of origin: GB
Piston/Rod U-RING 15,87X25,40X4,76 (5/8x1x3/16) BEIGE PU93
Part number: CPUP015025PU93478
Weight : 2.2700 gr.
Customs tariff code: 84129080
Country of origin: GB
Piston/Rod U-RING 15,87X25,40X7,13 (5/8x1x9/32) BEIGE PU93
Part number: CPUP015025/1PU93478
Weight : 1.3600 gr.
Customs tariff code: 84129080
Country of origin: GB
COLLARIN Pistón/Vástago 16X25X7,50/8,50 PU93 AMARILLO
Part number: CPU016025PU93478
Weight : 2.1000 gr.
Customs tariff code: 84129080
Country of origin: GB
COLLARIN Pistón/Vástago 20X28X6,50/7,50 PU93 AMARILLO
Part number: CPU020028PU93478
Weight : 2.0910 gr.
Customs tariff code: 84129080
Country of origin: GB
COLLARIN Pistón/Vástago 20X40X11/12 PU93 AMARILLO
Part number: CPU020040PU93478
Weight : 10.7500 gr.
Customs tariff code: 84129080
Country of origin: GB
Piston/Rod U-RING 22,23X31,75X4,76 (7/8x1.1/4x3/16) BEIGE PU93
Part number: CPUP022031PU93478
Weight : 1.9400 gr.
Customs tariff code: 84129080
Country of origin: GB
Piston/Rod U-RING 25,40X38,10X6,35 (1x1.1/2x1/4) BEIGE PU93
Part number: CPUP025038PU93478
Weight : 3.6800 gr.
Customs tariff code: 84129080
Country of origin: GB
Piston/Rod U-RING 28,57X41,28X12,70 (1.1/8x1.5/8x1/2) BEIGE PU93
Part number: CPUP028041PU93478
Weight : 11.4900 gr.
Customs tariff code: 84129080
Country of origin: GB
Piston/Rod U-RING 28,57X44,45X12,70 (1.1/8x1.3/4x1/2) BEIGE PU93
Part number: CPUP028044PU93478
Weight : 8.4400 gr.
Customs tariff code: 84129080
Country of origin: GB
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.