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Rod U-RING 20X26X5/6 BLUE TPU95
Part number: D2020026
Weight : 1.2400 gr.
Customs tariff code: 84129080
Country of origin: TW
Rod U-RING 20X28X5/6 BLUE TPU95
Part number: D2020028
Weight : 1.5800 gr.
Customs tariff code: 84129080
Country of origin: TW
Rod U-RING 20X27X6/7 BLUE TPU95
Part number: D2020027
Weight : 1.7800 gr.
Customs tariff code: 84129080
Country of origin: TW
Rod U-RING 20X30X6/7 BLUE TPU95
Part number: D2020030
Weight : 2.4900 gr.
Customs tariff code: 84129080
Country of origin: TW
Rod U-RING 20X28X7,20/8,20 BLUE TPU95
Part number: D2020028/1
Weight : 2.4100 gr.
Customs tariff code: 84129080
Country of origin: TW
Rod U-RING 20X30X8/9 BLUE TPU95
Part number: D2020030/1
Weight : 3.3500 gr.
Customs tariff code: 84129080
Country of origin: TW
Rod U-RING 20X33X10/11 BLUE TPU95
Part number: D2020033
Weight : 8.2800 gr.
Customs tariff code: 84129080
Country of origin: TW
Rod U-RING 20,63X26,99X3,17 (13/16x1.1/16x1/8) BLUE TPU95
Part number: D2P020026
Weight : 0.7500 gr.
Customs tariff code: 84129080
Country of origin: TW
Rod U-RING 21X29,50X5/6 BLUE TPU95
Part number: D20210295
Weight : 1.7200 gr.
Customs tariff code: 84129080
Country of origin: TW
Rod U-RING 22X30X5/6 BLUE TPU95
Part number: D2022030
Weight : 1.7300 gr.
Customs tariff code: 84129080
Country of origin: TW
Rod U-RING 22X30X8/9 BLUE TPU95
Part number: D2022030/1
Weight : 2.9200 gr.
Customs tariff code: 84129080
Country of origin: TW
Rod U-RING 22,23X28,57X3,17 (7/8x1.1/8x1/8) BLUE TPU95
Part number: D2P022028
Weight : 0.9500 gr.
Customs tariff code: 84129080
Country of origin: TW
TECHNICAL DATA
| U-Ring | Material | Hardness | Bars | Temperature | Speed |
| Rod U-Ring | PU/TPU | 92-93 SH A | ≤150 | -35 to +110 ºC | ≤0,50 m/s |
| Rod U-Ring | NBR | 90 SH A | ≤150 | -20 to +120 ºC | ≤0,50 m/s |
QUICK LINKS
ROD U-RINGS
Rod U-Rings have a lower inner lip than the outer lip and are generally used in single-acting applications, either hydraulic in the case of PU/TPU or pneumatic in the case of NBR.
Their design presupposes a preloading of the seal body which allows easy absorption of stem deflections and excellent sealing thanks to the compression of the lips during installation. During operation, the system pressure is added to the radial mechanical contact forces. JIOrings offers a range of 400 standard sizes.
ADVANTAGES
- Superior static and dynamic sealing effect
- Economical sealing solution
- Simple grrove design
- Easy assembly into closed grooves
APPLICATIONS
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 |
TPU92 / TPU95 | |||
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 |
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
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.