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  3. Vibration Damping/Bush-Type(Gel Bushings)

Products Bush-Type(Gel Bushings)

These anti-vibration bushings are secured with screws. They are small, soft, and easily compressible, allowing for effective control of micro-vibrations experienced by light-weight PCBs.

Characteristics
Effective for minimizing horizontal drift, using a bolt running through the Gel Bushing.
Designed to dampen tiny to light loads and micro vibrations.
Available for loads from 0.2 to 32kg with 4 points of support.
Application Example
Alpha GEL isolators are ideal primarily for light-load items such as PCBs. Its softness and mechanically reinforced strength allow for a smaller build and ensure long-term high performance.
Technical Information

[Damping Characteristics](reference data)

*Please swipe left or right to view table below.

Line-up※When installed at 4 points

Product Details

A typeLight load

*Please swipe left or right to view table below.

Part No. Optimum Load (kg/4 points) Resonance Point (Hz) Resonance Magnification (dB) Recommended Frequency (Hz)
A-1 0.5 〜 2.5 67 〜 35 9 〜 10 0.5Kg:95 〜
2.5Kg:50 〜
A-2 2.5 〜 4.0 49 〜 37 15 〜 16 2.5Kg:70 〜
4.0Kg:55 〜

Collar material : Brass

▼OPEN

B typeMiddle load

*Please swipe left or right to view table below.

Part No. Optimum Load (kg/4 points) Resonance Point (Hz) Resonance Magnification (dB) Recommended Frequency (Hz)
B-1 4 〜 15 49 〜 23 15 〜 17 4Kg:70 〜
15Kg:35 〜
B-2 15 〜 32 38 〜 20 19 〜 23 15Kg:40 〜
32Kg:25 〜

Collar material : Brass

▼OPEN

S typeUltra-light load

*Please swipe left or right to view table below.

Part No. Optimum Load (kg/4 points) Resonance Point (Hz) Resonance Magnification (dB) Recommended Frequency (Hz)
S 0.2 〜 0.75 64 〜 42 7 〜 9 0.2Kg:90 〜
0.75Kg:60 〜

Collar material : Brass

▼OPEN

Product Map

*Please swipe left or right to view table below.

  • Product Product Type Configuration Optimum Load
    (kg/at 4 points)
    MIN
    Optimum Load
    (kg/at 4 points)
    MAX
    Recommended
    Frequency Range
    (Hz)
    Top:Bolt Bottom:Bolt/
    Plate with holes
    Collar
    (Inner diameter)
    Theta-A Mount Type
    (Insulator)
    Top / Bottom: Bolts 2 3.2 23 M-4 M-4 -
    Theta-B Mount Type
    (Insulator)
    Top / Bottom: Bolts 1.6 2.4 18 M-4
    M-4
    -
    Theta-C Mount Type
    (Insulator)
    Top / Bottom: Bolts 3.2 8 20 M-6
    (with slot)
    M-6
    (with slot)
    -
    MN-3 Mount Type
    (Insulator)
    Top / Bottom: Bolts 8 14 17 M-6
    (with slot)
    M-6
    (with slot)
    -
    MN-5 Mount Type
    (Insulator)
    Top / Bottom: Bolts 14 22 16 M-6
    (with slot)
    M-6
    (with slot)
    -
    MN-7 Mount Type
    (Insulator)
    Top / Bottom: Bolts 22 34 16 M-6
    (with slot)
    M-6
    (with slot)
    -
    MN-10 Mount Type
    (Insulator)
    Top / Bottom: Bolts 34 50 16 M-6
    (with slot)
    M-6
    (with slot)
    -
    θ-TW
    (Theta TW)
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 50 100 14 M-6
    (with slot)
    M-6
    (with slot)
    -
    BG-7 Mount Type
    (Insulator)
    Top / Bottom: Bolts
    with Spring
    3.2 6.4 14 M-3 M-3 -
    BG-8 Mount Type
    (Insulator)
    Top / Bottom: Bolts
    with Spring
    6 16 14 M-6 M-6 -
    SF-2 Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    5 13 22 M-6
    (with slot)
    4.2×6mm(oval holes) -
    SF-5 Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    13 30 19 M-6
    (with slot)
    4.2×6mm(oval holes) -
    SF-10 Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    30 50 17 M-6
    (with slot)
    4.2×6mm(oval holes) -
    SF-30 Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    With rubber cover
    100 140 13 M-10
    (with slot)
    φ11mm(holes) -
    SF-50 Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    With rubber cover
    120 300 15 M-10
    (with slot)
    φ11mm(holes) -
    S Bush Type
    (GEL Bush)
    Bushing 0.2 0.75 60 - - φ3mm
    A-1 Bush Type
    (GEL Bush)
    Bushing 0.5 2 50 - - φ3mm
    A-2 Bush Type
    (GEL Bush)
    Bushing 2.5 4 70 - - φ3mm
    B-1 Bush Type
    (GEL Bush)
    Bushing 4 15 35 - - φ4mm
    B-2 Bush Type
    (GEL Bush)
    Bushing 15 32 25 - - φ4mm
    SN-2
    (Yellow)
    Sheet Type
    (SN Sheet)
    Sheet 0.5 2 38 - - -
    SN-5
    (Green)
    Sheet Type
    (SN Sheet)
    Sheet 2 5 40 - - -
    SN-15
    (Orange)
    Sheet Type
    (SN Sheet)
    Sheet 5 15 37 - - -
    SN-50
    (Blue)
    Sheet Type
    (SN Sheet)
    Sheet 15 50 30 - - -
    Product
    Theta-A
    Theta-B
    Theta-C
    MN-3
    MN-5
    MN-7
    MN-10
    θ-TW
    (Theta TW)
    BG-7
    BG-8
    SF-2
    SF-5
    SF-10
    SF-30
    SF-50
    S
    A-1
    A-2
    B-1
    B-2
    SN-2
    (Yellow)
    SN-5
    (Green)
    SN-15
    (Orange)
    SN-50
    (Blue)
    Product Type Configuration Optimum Load
    (kg/at 4 points)
    MIN
    Optimum Load
    (kg/at 4 points)
    MAX
    Recommended
    Frequency Range
    (Hz)
    Top:Bolt Bottom:Bolt/
    Plate with holes
    Collar
    (Inner diameter)
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 2 3.2 23 M-4 M-4 -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 1.6 2.4 18 M-4
    M-4
    -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 3.2 8 20 M-6
    (with slot)
    M-6
    (with slot)
    -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 8 14 17 M-6
    (with slot)
    M-6
    (with slot)
    -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 14 22 16 M-6
    (with slot)
    M-6
    (with slot)
    -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 22 34 16 M-6
    (with slot)
    M-6
    (with slot)
    -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 34 50 16 M-6
    (with slot)
    M-6
    (with slot)
    -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 50 100 14 M-6
    (with slot)
    M-6
    (with slot)
    -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts
    with Spring
    3.2 6.4 14 M-3 M-3 -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts
    with Spring
    6 16 14 M-6 M-6 -
    Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    5 13 22 M-6
    (with slot)
    4.2×6mm(oval holes) -
    Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    13 30 19 M-6
    (with slot)
    4.2×6mm(oval holes) -
    Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    30 50 17 M-6
    (with slot)
    4.2×6mm(oval holes) -
    Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    With rubber cover
    100 140 13 M-10
    (with slot)
    φ11mm(holes) -
    Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    With rubber cover
    120 300 15 M-10
    (with slot)
    φ11mm(holes) -
    Bush Type
    (GEL Bush)
    Bushing 0.2 0.75 60 - - φ3mm
    Bush Type
    (GEL Bush)
    Bushing 0.5 2 50 - - φ3mm
    Bush Type
    (GEL Bush)
    Bushing 2.5 4 70 - - φ3mm
    Bush Type
    (GEL Bush)
    Bushing 4 15 35 - - φ4mm
    Bush Type
    (GEL Bush)
    Bushing 15 32 25 - - φ4mm
    Sheet Type
    (SN Sheet)
    Sheet 0.5 2 38 - - -
    Sheet Type
    (SN Sheet)
    Sheet 2 5 40 - - -
    Sheet Type
    (SN Sheet)
    Sheet 5 15 37 - - -
    Sheet Type
    (SN Sheet)
    Sheet 15 50 30 - - -
  • Product Product Type Configuration Optimum Load
    (kg/at 4 points)
    MIN
    Optimum Load
    (kg/at 4 points)
    MAX
    Recommended
    Frequency Range
    (Hz)
    Top:Bolt Bottom:Bolt/
    Plate with holes
    Collar
    (Inner diameter)
    S Bush Type
    (GEL Bush)
    Bushing 0.2 0.75 60 - - φ3mm
    A-1 Bush Type
    (GEL Bush)
    Bushing 0.5 2 50 - - φ3mm
    SN-2
    (Yellow)
    Sheet Type
    (SN Sheet)
    Sheet 0.5 2 38 - - -
    θ-B
    (シータ B)
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 1.6 2.4 18 M-4
    M-4
    -
    θ-A
    (シータ A)
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 2 3.2 23 M-4 M-4 -
    SN-5
    (Green)
    Sheet Type
    (SN Sheet)
    Sheet 2 5 40 - - -
    A-2 Bush Type
    (GEL Bush)
    Bushing 2.5 4 70 - - φ3mm
    θ-C
    (シータ C)
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 3.2 8 20 M-6
    (with slot)
    M-6
    (with slot)
    -
    BG-7 Mount Type
    (Insulator)
    Top / Bottom: Bolts
    with Spring
    3.2 6.4 14 M-3 M-3 -
    B-1 Bush Type
    (GEL Bush)
    Bushing 4 15 35 - - φ4mm
    SF-2 Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    5 13 22 M-6
    (with slot)
    4.2×6mm(oval holes) -
    SN-15
    (Orange)
    Sheet Type
    (SN Sheet)
    Sheet 5 15 37 - - -
    BG-8 Mount Type
    (Insulator)
    Top / Bottom: Bolts
    with Spring
    6 16 14 M-6 M-6 -
    MN-3 Mount Type
    (Insulator)
    Top / Bottom: Bolts 8 14 17 M-6
    (with slot)
    M-6
    (with slot)
    -
    SF-5 Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    13 30 19 M-6
    (with slot)
    4.2×6mm(oval holes) -
    MN-5 Mount Type
    (Insulator)
    Top / Bottom: Bolts 14 22 16 M-6
    (with slot)
    M-6
    (with slot)
    -
    B-2 Bush Type
    (GEL Bush)
    Bushing 15 32 25 - - φ4mm
    SN-50
    (Blue)
    Sheet Type
    (SN Sheet)
    Sheet 15 50 30 - - -
    MN-7 Mount Type
    (Insulator)
    Top / Bottom: Bolts 22 34 16 M-6
    (with slot)
    M-6
    (with slot)
    -
    SF-10 Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    30 50 17 M-6
    (with slot)
    4.2×6mm(oval holes) -
    MN-10 Mount Type
    (Insulator)
    Top / Bottom: Bolts 34 50 16 M-6
    (with slot)
    M-6
    (with slot)
    -
    θ-TW
    (Theta TW)
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 50 100 14 M-6
    (with slot)
    M-6
    (with slot)
    -
    SF-30 Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    With rubber cover
    100 140 13 M-10
    (with slot)
    φ11mm(holes) -
    SF-50 Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    With rubber cover
    120 300 15 M-10
    (with slot)
    φ11mm(holes) -
    Product
    S
    A-1
    SN-2
    (Yellow)
    Theta-B
    Theta-A
    SN-5
    (Green)
    A-2
    Theta-C
    BG-7
    B-1
    SF-2
    SN-15
    (Orange)
    BG-8
    MN-3
    SF-5
    MN-5
    B-2
    SN-50
    (Blue)
    MN-7
    SF-10
    MN-10
    θ-TW
    (Theta TW)
    SF-30
    SF-50
    Product Type Configuration Optimum Load
    (kg/at 4 points)
    MIN
    Optimum Load
    (kg/at 4 points)
    MAX
    Recommended
    Frequency Range
    (Hz)
    Top:Bolt Bottom:Bolt/
    Plate with holes
    Collar
    (Inner diameter)
    Bush Type
    (GEL Bush)
    Bushing 0.2 0.75 60 - - φ3mm
    Bush Type
    (GEL Bush)
    Bushing 0.5 2 50 - - φ3mm
    Sheet Type
    (SN Sheet)
    Sheet 0.5 2 38 - - -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 1.6 2.4 18 M-4
    M-4
    -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 2 3.2 23 M-4 M-4 -
    Sheet Type
    (SN Sheet)
    Sheet 2 5 40 - - -
    Bush Type
    (GEL Bush)
    Bushing 2.5 4 70 - - φ3mm
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 3.2 8 20 M-6
    (with slot)
    M-6
    (with slot)
    -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts
    with Spring
    3.2 6.4 14 M-3 M-3 -
    Bush Type
    (GEL Bush)
    Bushing 4 15 35 - - φ4mm
    Mount Type
    (Insulator)
    Top:Bolt
    Bottom:Plate with holes
    5 13 22 M-6
    (with slot)
    4.2×6mm(oval holes) -
    Sheet Type
    (SN Sheet)
    Sheet 5 15 37 - - -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts
    with Spring
    6 16 14 M-6 M-6 -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 8 14 17 M-6
    (with slot)
    M-6
    (with slot)
    -
    Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    13 30 19 M-6
    (with slot)
    4.2×6mm(oval holes) -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 14 22 16 M-6
    (with slot)
    M-6
    (with slot)
    -
    Bush Type
    (GEL Bush)
    Bushing 15 32 25 - - φ4mm
    Sheet Type
    (SN Sheet)
    Sheet 15 50 30 - - -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 22 34 16 M-6
    (with slot)
    M-6
    (with slot)
    -
    Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    30 50 17 M-6
    (with slot)
    4.2×6mm(oval holes) -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 34 50 16 M-6
    (with slot)
    M-6
    (with slot)
    -
    Mount Type
    (Insulator)
    Top / Bottom: Bolts 50 100 14 M-6
    (with slot)
    M-6
    (with slot)
    -
    Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    With rubber cover
    100 140 13 M-10
    (with slot)
    φ11mm(holes) -
    Mount Type
    (Insulator)
    Top: Bolt
    Bottom:Plate with holes
    With rubber cover
    120 300 15 M-10
    (with slot)
    φ11mm(holes) -

Notes

Drawing for installation

・Since this product is very soft and easily damaged, please handle with care.
・Tighten the bolt all the way to the collar.
・Usable bolts are M3 or smaller for Type-A, M4 or smaller for Type-B, and M3 or smaller for Type-S.
・Use a washer equal to or bigger than the diameter of the upper portion of GEL Bush.
・Collar inside the GEL Bush is removable. ※Data was obtained with 1.2mm-thick PCB for Type-A, 1.5mm for Type-B, and 1.0mm for Type-S.
※Recommended frequency depends on loads.

Customization
We also develop custom products to meet our customers’ individual needs. Contact us today!