-40%
(pack) Rod Sealing U-ring K23 PU ID 152mm-450mm (choose dimensions)

(pack) Rod Sealing U-ring K23 PU ID 152mm-450mm (choose dimensions)

$ 2.61

Availability: 18800 in stock
  • Refund will be given as: Money Back
  • Restocking Fee: No
  • Brand: Unbranded/Generic
  • All returns accepted: Returns Accepted
  • MPN: Does Not Apply
  • Condition: New
  • Return shipping will be paid by: Buyer
  • Item must be returned within: 30 Days

    Description

    K23 is a single acting piston seal designed to have outer lip shorter than the inner lip in order to be used for piston 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.
    MATERIAL
    CODE
    NBR
    90 SHORE A
    NB
    9001
    PU
    92 SHORE A
    PU
    9201
    OPERATING CONDITIONS
    NBR
    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
    PU
    MEDIA
    Mineral oils (DIN 51524)
    HFA and HFB
    HFC
    TEMPERATURE
    -30°C +100°C
    +5°C +50°C
    -30°C +40°C
    PRESSURE
    ≤400 Bar
    ≤400 Bar
    ≤400 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
    ≤0.4 μm
    ≤3.2 μm
    Groove Base Ød
    ≤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. It is very important that the assembly tools must be of soft material and have no sharp edges. 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
    25
    30
    40
    50
    80
    100
    105
    NOTES
    For special applications that require high temperatures , K23 can be produced in FKM material. The permissible sealing gap values of K23 piston seal is given in the below table.
    PERMISSIBLE SEALING GAP
    NBR
    Smax (mm)
    t=(D-d)/2(mm)
    50 Bar
    100 Bar
    150 Bar
    t≤5
    0.40
    0.20
    0.10
    t>5
    0.45
    0.25
    0.15
    &n bsp; PU
    Smax (mm)
    t=(D-d)/2(mm)
    150 Bar
    250 Bar
    400 Bar
    t≤5
    0.30
    0.20
    0.15
    t>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.