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Clevis Pin Optional Features
Strainsert offers a variety of load pin design options to fully optimize the
force measurement solution.
Dual Bridge Circuits:
Dual bridge gaging provides two independent strain gage circuits.
This option is advantageous for controlling multiple feedback
systems as well as providing redundant force-measuring capability.
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 Clevis Pin Optional Features
Online Catalog |
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 Dual Bridge Specification Drawing |
4-20 ma Internal Amplifier:
Integral signal conditioning, built into the pin, provides
a high level 4 - 20 ma output, while maintaining pin ruggedness and
durability. This option is ideal for noisy environments or where long
cable length are required.
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Clevis Pin Optional Features
Online Catalog |
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| Internal Amplifier Specification Drawing |
Bi-Axial Clevis Pins:
When both the magnitude and the direction of the load are unknown,
the vector measurement is possible using a Strainsert force sensing pin
instrumented with two strain-gage bridges oriented 90° apart around the
circumference. The cross-section of the pin shows the two sets of strain gages,
the Y bridge will sense force component Py, while the X bridge will sense forces
in the Px direction, 90° to Py. The outputs from the two bridges, Ex and Ey,
can be measured and the resultant force magnitude and direction can be
determined:
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P = K * the square root of Ex squared + Ey squared.
Where K = constant derived from calibration data
Direction: Ø = inverse tangent (Ey / Ex)
Clevis Pin Optional Features
Online Catalog |
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| Biaxial Clevis Pin Specification Drawing |
| · Bridge Resistance - |
350ohm (Nom.) |
| · Excitation - |
12V ac or dc (Max.) |
| · Non-Repeatability - |
±0.15% F.S.O (Nom.) |
| · Non-Linearity - |
±0.50% F.S.O (Nom.) on Primary axes* |
| · Pin Material - |
Stainless Steel 17-4; or higher strength stainless or alloy steels |
| · Output Signal - |
2-mv/V (Nom) custom designs may effect output |
| · Sheave applications with variable angles |
· Loader Buckets |
| · Any pin joint with rotating loading members |
· Hydraulic Actuators |
| · Research and Development |
· Mooring Lines |
| · Aircraft component testing |
· Landing gear |
| · Pin Diameters from 1" and Larger |
· 5 Step loading calibration on primary X and Y axes (2 runs each) |
| · Full Scale Endpoint Checks at 45 degree increments or specified range of interest |
· Force Component Resolution and Direction Capability |
| · Internal Strain Gaging |
· 2 Year Warranty |
* Certain custom pin geometry and bridge to bridge effects (cross-talk) may result in a measurement accuracy of 5% full scale or
greater. For such cases, Strainsert can provide a correction algorithm to minimize errors.
| · Submerged/High Pressure |
· Specials from .5" to 1" diameter |
| · 4-20 ma Output |
· System Calibration |
| · Permanently Attached Cable |
· High Strength Material for Additional Force Capabilities |
Deep Sea Clevis Pin System:
The Strainsert deep sea/high pressure Clevis Pin provides the ability to measure
force at clevis joints under high pressure conditions. Complete systems are available,
and include the instrumented Clevis Pin, cabling, and a digital display indicator.
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Clevis Pin Optional Features
Online Catalog |
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| Deep Sea Clevis Pin Specification Drawing |
| · Output - |
4-20 ma Loop Power or mv/V |
| · Input - |
13 to 28V dc (4-20 ma Systems), 10V max excitation (mv/V Output) |
| · Non-Repeatability - |
±0.15% F.S.O (Nom.) |
| · Non-Linearity - |
±0.50% F.S.O (Nom.) |
| · Operating Temperature - |
15 degrees F to 150 degrees F |
| · Storage Temperature - |
-40 degrees F to 160 degrees F |
| · Receptacle - |
Burton 55 Series (316 Stainless), Brantner or Customer Specified |
| · Cable Assembly - |
High Pressure, Marine (Lengths as Required) |
| · Pin Material - |
Monel, or 17-4 Stainless (Passivated, or other) |
| · Off-Shore Platform Crane, Winch Hook and Sheave Attachments |
· Research and Development |
| · Deep Sea Excavation and Trenching Systems |
· Towline Monitoring |
| · Marine Research and Development |
· Mooring Lines |
| · Uni-Axial, Bi-Axial (Shown above) and Dual Bridge Force Sensing |
· Integral Signal Conditioning |
| · System Calibration (5 Steps 2 Runs |
· Indicator Capabilities |
| · 1500 psi Standard Rating |
· Custom Fit |
| · Internal Strain Gaging |
· 2 Year Warranty |
Intrinsically Rated Force Sensing Clevis Pins
The Strainsert intrinsically rated force sensing clevis pin provides force measurement
capabilities in hazardous environments. They are rated for Class I, Division 1, Group
A, B, C, D - Class II, Division 1, Group E, F and G. They also have a T4 temperature rating - Demko Approved EEx ia IIC T4.
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Clevis Pin Optional Features
Online Catalog |
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| Intrinsically Rated Clevis Pin Specification Drawing |
Intrinsically Rated Clevis Pin Specification Drawing |
| · Explosives |
· Oil |
| · Chemical |
· Engine Tests |
| · Mining |
· Aerospace |
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Strainsert - for superior internally gaged force transducers.
Strainsert stands for:
- Product Quality
- Knowledgeable Technical Staff
- Custom and Standard Designs
- Customer Service
- Comprehensive Testing
Contact Strainsert
For information on load pins, force sensing bolts, load cells, tension links or our high quality custom products, Contact Us for further assistance.
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