Force Sensing Shackle Load Pins - RCP/SCP Series
Force Sensing Shackle Load Pins - RCP/SCP Series
SKU:LOA-652802
Precision load sensing shackle load pins for accurate force measurement in a wide load capacity range. Rugged, reliable, and easy to install.
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$399.99
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$399.99
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Force Sensing Shackle Load Pins - RCP/SCP Series
$399.99
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Force Sensing Shackle Load Pins - RCP/SCP Series
$399.99
Quantity: 1
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The RCP/SCP Series Force Sensing Shackle Load Pins are designed as direct replacements for standard Crosby and Skookum shackle pins, offering precision load sensing capabilities with rugged internally sealed strain gages. Made of high-strength stainless steel, these load pins ensure easy installation and direct force measurement for anchor and chain shackles across a wide range of load capacities, from 2,000 to 220,000 lbs. Featuring a robust design and full bridge 350 Ohm strain gage technology, these load pins deliver accurate overload protection without zero shift and failure up to 300%. With temperature compensation and superior environmental protection, these load pins guarantee reliable performance in challenging conditions.
Product Specifications
Dimensional Drawing Dimensional Drawing
RCP-SCP Force Sensing Shackle Bolt
Electrical Specifications Cable
#20(26x34) AWG., rubber insulation, shielded, rubber jacket, 4-Conductor (Standard Cable)
Electrical Specifications Excitation
Red
Electrical Specifications Function
Wire Code
Electrical Specifications Signal
Green
Features 0
Precison Load Sensing Rugged Internally Sealed Strain Gages Easy Installation Direct Force Measurement High Strength Stainless Steel
General Information 0
Shackle Load Pins are strain gage transducers developed by Strainsert (U.S. Patent No. 3,695,096). They are manufacured utilizing the internal strain gage process perfected by Strainsert since 1960. They offer precision force measurement by simply replacing existing shackle pins.The pin design is a double-shear arrangement. Typically, force P is applied at the center of the pin while 2 equal opposing forces of P/2 are applied at each end at the shackle ears. Strain gages are sealed inside a small axial hole and are positioned at the 2 shear locations at the interface between the shackle ears and the shackle eye. The strain gages are positioned and oriented with great precision along the neutral plane relative to the specific direction of force.An anti-rotation device is necessary for proper reading and alignment. If a force P is applied to the pin at an angle other than the specified direction, the theoretical bridge output will be offset by a component of the force along the sensitive direction, i.e. P cos X.The four strain gages (two at each shear location) are electrically connected to form a full bridge, the signal from each gage being additive so that the bridge output is proportional to the sum of the forces transmitted by the shear planes of the pin. The circuit typically includes temperature compensation, signal trim (optional), and zero balance resistors terminating in a suitable connector socket or integral cable, and potted with a sealing compound inside the gage hole for enhanced environmental protection.Standard models include detailed calibration data up to 500,000 lbs. Higher capacity calibration data is available at an additional charge. Strainsert factory calibrations are intended to simulate installed conditions, however, it is recommended that an in-place calibration be performed to account for any installation, tolerance, and/or alignment influences affecting sensor measurement.Standard models are typically used in new applications where the designer can develop the specific load pin joint around the standard load pin dimensions, to optimize force measurement performance. In addition, the standard load pin may fit or can be incorporated through the use of bushings or modification of the assembly.
Performance Specs Bridge
Full bridge 350 Ohm (Nominal)
Performance Specs Excitation
12 V AC (Maximum) | 12 V DC (Maximum)
Performance Specs Hysteresis
±0.50% FS (Nominal)
Performance Specs Non Linearity
±0.50% FS (Nominal)
Performance Specs Non Repeatability
±0.15% FS (Nominal)
Performance Specs Output Signal
2-mV/V (Nominal) | 2-mV/V (Standardized Output)
Performance Specs Overload Without Failure
300% (Minimum)
Performance Specs Overload Without Zero Shift
150%
Performance Specs Service Temp Range
to 150 °F
Performance Specs Temp Effects On Output
0.008% load / °F (Nominal)
Performance Specs Temp Effects On Zero
0.005% FS / °F (Nominal)
Performance Specs Zero Balance
±2% FS (Nominal)
Specifications Ae Shackle Opening
1.06 in
Specifications Ae Tolerance
0.06 in
Specifications Bc Width Of Shackle Eard Nominal
0.63 in
Specifications Connector Type
Permanently Attached Cable
Specifications C Clevis Bolt Head Diameter
2.000 in
Specifications Dp Nominal Shackle Bolt Diameter
0.750 in
Specifications H Inside Length Of Anchor Shackle
2.38 in
Specifications H Inside Length Of Chain Shackle
2.00 in
Specifications Load Capacity
6500 lb
Specifications Material
Stainless Steel 17-4, H-1025 (Standard)
Specifications R Outside Diameter Of Shackle Ear Nominal
1.50 in
Specifications Shackle Size
5/8 Inch
Specifications Shackle Type
Anchor Shackle | Chain Shackle
Specifications T Thread Size
1/2-20 UNF