Ideal for demanding bellows applications

The need for greater precision in mechanical components has led to the development of high tensile properties in deposition alloys for use as a bellows material.

The MS-Deposition process produces a high density, high strength alloy with excellent spring properties.

Plated bellows permit a wide design latitude due to a variety of flexible configurations.

Each bellows is engineered and manufactured to the highest standards of quality and reliability.

MS Bellows continues to be at the leading edge of deposited bellows technology.

Nickel-Plated Bellows Contact Us To Get Started
Aneroid Assembly Used to Sense Ambient Pressures Relative to the Evacuated Bellows Assembly. Adjustable Jeweled Pivot Allows Axial Motion With Hermetic Sealing.

Typical Applications

  • Pressure Sensors
  • Flexible Couplings
  • Temperature Sensors
  • Hydraulic Transmission with Amplification
  • Axial & Rotary Seals
  • Microwave Components
  • Precision Miniature
  • Assemblies
  • Pressure Switches

Advantages

  • Extremely small sizes can be fabricated by the MS-Deposition process. Bellows can be produced with O.D.s as small as .040 for miniature applications.
  • Very fine sensitivities can be achieved for accurate instrument applications due to low spring rates and wall thicknesses as thin as .0003.
  • High strength material allows for low hysteresis and maximum deflection applications.
  • Long life in tough conditions.
  • Constant effective area maintained through operating conditions.
  • Uniform wall thickness and plating resolution yields controlled low tolerance and consistent spring rates.
  • Proper convolution design tailors force-deflection characteristics to the specific application.
  • Non-standard plated bellows can be produced with minimal lead time in a cost effective manner.
Conventional Electro-plated Bellows Cross Section MS-Nickel Deposition Process Cross Section Contact Us To Get Started
  • Process
    A mandrel is contoured with convolutions and end-type configuration A mandrel is contoured with convolutions and end-type configuration
    MS-nickel alloy is chemically deposited onto mandrel to the required thickness MS-nickel alloy is chemically deposited onto mandrel to the required thickness
    The mandrel is dissolved out to leave the thin nickel-plated bellows The mandrel is dissolved out to leave the thin nickel-plated bellows
    End-fittings are joined to bellows by soldering or adhesive bonding to make bellows assembly End-fittings are joined to bellows by soldering or adhesive bonding to make bellows assembly
  • Standard Sizes
    Outer Diameter (in.)
    Inner Diameter (in.)
    Effective Area (sq. in.)
    Material Thickness (in.)
    Spring Rate Per Convl’n (lbs./in./con.)
    Convl’n Pitch (in./con.)
    Max Stroke, Compression (in./con.)
    Max Stroke Extension (in./con.)
    .063.039.0020.0005135.010.005.002
    .063.039.0020.0007370.010.003.001
    .094.054.0043.0008160.012.005.002
    .094.064.0049.0008415.012.004.0015
    .125.075.0079.0008110.016.007.002
    .125.075.0079.0010215.016.006.002
    .125.085.0087.0010450.012.005.002
    .125.065.0071.0010120.018.008.003
    .188.116.0181.0010110.022.009.003
    .188.116.0181.0013242.022.008.0025
    .188.128.0196.0010195.018.007.002
    .188.138.0209.0010350.016.006.002
    .250.154.032.001060.030.013.004
    .250.154.032.0013132.030.012.004
    .250.712.035.0010120.025.010.003
    .250.190.038.0010275.018.007.002
    .312.192.0499.001040.038.017.006
    .312.192.0499.0015135.038.015.005
    .312.206.0527.001060.036.016.005
    .312.222.056.0010100.028.012.004
    .375.237.0735.001030.044.020.007
    .375.237.0735.0015100.044.018.006
    .375.261.0794.001056.036.016.005
    .375.285.0855.0010120.028.012.004
    .437.281.1012.001585.050.023.008
    .437.281.1012.0020200.050.021.007
    .437.311.1098.001050.040.018.006
    .437.341.1188.0010115.0300.12.004
    .500.308.1282.001555.060.028.009
    .500.308.1282.0020130.060.025.008
    .500.344.1398.0015100.050.023.008
    .500.380.152.0015225.038.015.005
    Properties such as spring rate can be adjusted to meet your specific requirement.
    This is a partial listing of available die-sets for welded bellows.
    Please contact our staff for additional size requirements. Welded bellows up to 10.00 inches in outer diameter can be fabricated.
  • Design Equatons
    Design Equatons

    Effective Area: Ae = (OD + ID)2 X .1963
    Mean Diameter: φm = (OD + ID) / 2
    Spring Rate: K = K/C / Nc
    Free Length: Lf = Pitch X Nc
    Stroke, Comp: y = Comp. Stroke/Conv. X Nc
    Stroke, Ext: y = Ext. Stroke/Conv. X Nc
    Stroke per PSI: A/K = Ae / Total Spring Rate
    Volume Displacement: ΔV = Ae X Total Stroke
    Force Output: F = K X y = ΔP X Ae
    Span: Convolution Depth = (OD-ID) / 2
    Comp. Length (Welded) = 3 X Mat’l Thk. X Nc

Consult Our Engineering Staff Regarding Your Specific Application Requirement

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