-40%
(pack) Piston-Rod Sealing U-ring K95 NBR ID 3mm-29mm (choose dimensions)

(pack) Piston-Rod Sealing U-ring K95 NBR ID 3mm-29mm (choose dimensions)

$ 0.66

Availability: 23600 in stock
  • Item must be returned within: 30 Days
  • Refund will be given as: Money Back
  • MPN: Does Not Apply
  • All returns accepted: Returns Accepted
  • Brand: Unbranded/Generic
  • Restocking Fee: No
  • Return shipping will be paid by: Buyer
  • Condition: New

    Description

    K95 is a single acting piston - rod seal and designed to have symmetrical lips in order to be used both for rod and piston applications.
    PRODUCT ADVANTAGES
    • Superior static and dynamic sealing efect
    • Wide range of dimensions
    • Easy assembly into closed grooves
    • Although designed for hydraulic cylinders , it is used in special pneumatic cylinders as well
    • Simple groove design
    • Economical sealing solution
    APPLICATION
    Fork-lift trucks , injection moulding machines , agricultural machinery , and standard cylinders.
    MATERIAL
    CODE
    NBR
    90 SHORE A
    NB
    9001
    OPERATING CONDITIONS
    MEDIUM
    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.
    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. Before installation the sealing element 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 , K95 can be produced in FKM material. The permissible sealing gap values of K95 piston - rod seal is given in the below table.
    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.