NI 90SH (U-RING SINGLE ACTIONSEAL)

product

NI is a single acting rod seal designed to have inner lip shorterthan the outer lip in order to be used for rod applications.

PRODUCT ADVANTAGES

  • Superior static and dynamic sealing effect
  • Wide range of dimensions
  • Easy assembly into closed grooves
  • Simple groove design
  • Economical sealing solution

APPLICATION
Construction machinery , fork-lift trucks , injection moulding machines , agricultural machinery , loading platforms and standard cylinders

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 NI must be oiled with system oil.

MINUMUM DIAMETER 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

NOTES: For special applications that require high temperatures , NI can be produced in FPM material.

PERMISSIBLE SEALING GAP   Smax(mm)
t=(D-d)/2 50 Bar 100 Bar 150 Bar
t≤5 0.40 0.20 0.10
t>5 0.45 0.25 0.15

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. 

MATERIAL: NBR 90 SH

 

OPERATING CONDITIONS 
MEDIA Mineral oils(DIN 51524)  HFA and HFB HFC
TEMPERATURE -30°C +105°C +5°C +60°C -30°C +60°C
PRESSURE ≤150 Bar ≤150 Bar ≤150 Bar
SPEED ≤0.5 m/sn ≤0.5 m/sn ≤0.5 m/sn

Note: The above data are maximum values and cannot be used at the same time.

SURFACE ROUGHNESS Ra Rmax
Sliding Surface ØD-Ød ≤0.4 μm ≤3.2 μm
Groove Base ØDb-Ødp ≤1.6 μm ≤10 μm
Groove Flanks B ≤3.2 μm ≤16 μm

Note: It is recommended to have 50% to 90% of the working surface material contact area value.

 

 

 

 

 

 

 

  

 

 

 

Loading... please wait
# Vota code Name Application Material Pressure
(bar)
Temperature °C Sliding Speed (m/s)
stang-afdichting/ni-90 NI 90 NI 90SH (U-RING SINGLE ACTIONSEAL) ROD/AXLE NBR 150 -30°C +105°C 0.5
Find product

CB = Custom build (price on request)
* = Stock item
Stock = 0 (and not a Stock* or CB product) -> minimum item value € 10.00

# Description Info Stock Price Add to cart
{{product.number}} {{product.description}} {{product.item_type_name.substring(0, 5)}} {{product.stock}} {{product.price|customCurrency:"€":",":".":2}}