{"id":2253,"date":"2026-07-09T09:28:33","date_gmt":"2026-07-09T01:28:33","guid":{"rendered":"https:\/\/www.huiganis.com\/?p=2253"},"modified":"2026-07-09T09:29:45","modified_gmt":"2026-07-09T01:29:45","slug":"%e8%bd%b4%e6%89%bf%e5%ba%a7%e4%bc%a0%e6%84%9f%e5%99%a8%ef%bc%9a%e5%8e%9f%e7%90%86%e3%80%81%e7%89%b9%e7%82%b9%e4%b8%8e%e5%ba%94%e7%94%a8%e5%85%a8%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.huiganis.com\/en\/%e8%bd%b4%e6%89%bf%e5%ba%a7%e4%bc%a0%e6%84%9f%e5%99%a8%ef%bc%9a%e5%8e%9f%e7%90%86%e3%80%81%e7%89%b9%e7%82%b9%e4%b8%8e%e5%ba%94%e7%94%a8%e5%85%a8%e8%a7%a3%e6%9e%90\/","title":{"rendered":"Bearing Housing Sensor: A Comprehensive Analysis of its Principles, Characteristics, and Applications"},"content":{"rendered":"

A bearing housing sensor (also known as a bearing housing load cell or bearing housing weighing sensor) is a specialized sensor that integrates force measurement with the bearing housing support structure. It is directly mounted below the bearing housing, replacing or embedding itself into the existing support structure. While providing support for the bearing housing, it simultaneously measures the load acting on the bearing in real time.<\/a>Bearing housing sensors embody the application of force measurement in industrial applications.Modularization and integration<\/strong>Its development direction is to be widely used in tension testing and overload protection systems in industries such as lifting, water conservancy, and metallurgy.<\/h2>\n\n\n\n
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I. Structural Design<\/h3>\n\n\n\n

The core elastic element of the bearing housing sensor is aFlat or block-shaped metal substrate<\/strong>Its typical structure is as follows:Flat plate double shear beam<\/strong>Design \u2013 The exterior is shaped like a flat plate, and the interior is specially processed to form a double shear beam elastic structure.<\/a>This structure enables the sensor to haveLow profile and large contact area<\/strong>Its characteristics enable high-precision measurement within a limited space.<\/a>.<\/p>\n\n\n\n

In terms of structural layout, bearing housing sensors typically adopt...Fixed at both ends, bearing at the center<\/strong>way<\/a>The sensor is fixed to the base at both ends, and the middle part is used to install the bearing housing.<\/a>When the bearing housing is under load, the load is transferred to the base through the shear elastic beams at both ends.<\/a>Sensor selectionHigh-quality alloy steel<\/strong>As an elastomer material<\/a><\/a>Some models can also be made of stainless steel to meet corrosion resistance requirements.<\/a>Regarding sensitive elements, the following is adopted:foil resistance strain gauge<\/strong>As a sensitive element for force-to-electricity conversion<\/a>.<\/p>\n\n\n\n

The wiring method for bearing housing sensors is typically as follows:Lateral exit<\/strong>This facilitates wiring in compact spaces. Depending on the installation space and measurement range, the sensor is available in several sizes, covering a range from 1.5 tons to 50 tons or even higher.<\/a><\/a>.<\/p>\n\n\n\n

II. Working Principle<\/h3>\n\n\n\n

The working principle of the bearing housing sensor is based onResistance strain effect<\/strong><\/a>The core process is as follows:<\/p>\n\n\n\n

When an external force is transmitted to the bearing housing through the bearing, the bearing housing transmits the force to the sensor elastic body below.<\/a>When an elastomer is subjected to force, it undergoes a small elastic deformation. A foil strain gauge, attached to a specific location on the surface of the elastomer, subsequently experiences strain, and its resistance value changes accordingly.<\/a>The change in resistance is achieved through...Wheatstone bridge<\/strong>This is converted into a measurable voltage signal output. The millivolt-level output signal is then amplified and processed by subsequent instruments to obtain an electrical signal proportional to the load magnitude.<\/a>.<\/p>\n\n\n\n

From a mechanical model perspective, the bearing housing sensor can be simplified to...Shear beam structure with fixed ends and concentrated load in the middle<\/strong><\/a>This structure allows the shear stress to concentrate in a specific area of the elastic beam when the sensor is subjected to force. The strain gauges are precisely attached to these locations where the stress is greatest and the strain is most concentrated, thus achieving the highest sensitivity and optimal linearity.<\/a>.<\/p>\n\n\n\n

Some high-end bearing housing sensors also useDouble shear beam<\/strong>Structural design<\/a>The double shear beam structure, by creating two symmetrical shear stress zones on the elastic body, not only improves the measurement accuracy of the sensor but also enhances its resistance to lateral forces and impacts.<\/a>This structure allows the sensor to maintain a stable output even when subjected to off-center or impact loads.<\/p>\n\n\n\n

III. Main Features<\/h3>\n\n\n\n

1. Compact structure and easy installation<\/strong><\/p>\n\n\n\n

The bearing housing sensor has a low-profile, flat design, allowing it to be directly installed beneath the bearing housing. It replaces the original bearing housing support structure while also performing force measurement, greatly simplifying the mechanical components of the entire force measurement system.<\/a>No major structural modifications to the equipment are required during installation, greatly simplifying the on-site installation process.<\/a>.<\/p>\n\n\n\n

2. Excellent resistance to lateral forces and impacts.<\/strong><\/p>\n\n\n\n

The flat, planar shape ensures stability under stress and minimizes lateral interference. The double shear beam structure provides the sensor with excellent resistance to lateral forces and impacts.<\/a>Even under complex operating conditions such as off-center loading, vibration, or shock, the sensor can still maintain high measurement accuracy.<\/a>.<\/p>\n\n\n\n

3. High precision and large range<\/strong><\/p>\n\n\n\n

Bearing housing sensor hasHigh measurement accuracy<\/strong>The overall accuracy can reach 0.05%FS<\/a>With a wide measuring range, from 1.5 tons to 50 tons or even higher, it can meet the measurement needs of various equipment, from small cranes to large hydraulic gate hoists.<\/a><\/a>.<\/p>\n\n\n\n

4. High protection level and strong environmental adaptability<\/strong><\/p>\n\n\n\n

Sensors typically reachIP66<\/strong>Protection level and above<\/a><\/a>Some models can reachIP67 or even IP68<\/strong><\/a>Operating temperature range is wide, from -40\u2103 to +85\u2103.<\/a><\/a>It can adapt to harsh industrial environments such as outdoor, dusty, and humid conditions.<\/p>\n\n\n\n

5. Strong overload capacity<\/strong><\/p>\n\n\n\n

The bearing housing sensor has excellent safe overload capacity, typically 150%FS.<\/a><\/a>Some models have a plastic deformation limit that can reach300%FS<\/strong>The fracture limit can reach500%FS<\/strong><\/a>This characteristic is particularly important for lifting equipment that is subjected to impact loads.<\/p>\n\n\n\n

6. Optional built-in transmitter<\/strong><\/p>\n\n\n\n

Some models offer the option of a built-in transmitter for direct output.0\uff5e10mA, 4\uff5e20mA or 0\uff5e5V<\/strong>Standard industrial signals are used to facilitate direct interface with industrial control systems such as PLCs and DCSs.<\/p>\n\n\n\n

IV. Main Application Areas<\/h3>\n\n\n\n

Bearing housing sensors are widely used in various industrial equipment that require bearing housing load monitoring and overload protection.<\/p>\n\n\n\n

1. Lifting equipment<\/strong><\/p>\n\n\n\n

This is the core application area of bearing housing sensors. It is specifically designed for...Bridge cranes, gantry cranes, tower cranes<\/strong>Design of lifting equipment for engineering projects<\/a>The sensor is installed below the bearing housing of the crane hoisting mechanism drum to monitor the load borne by the drum bearing in real time.<\/a>When the lifting weight exceeds a set threshold, the system can automatically issue an alarm or cut off the lifting circuit, thus achieving...Overload protection<\/strong><\/a>In addition, bearing housing sensors can also be used forCrane electronic scale<\/strong>This enables online weighing and measurement of hoisted goods.<\/p>\n\n\n\n

2. Water conservancy projects<\/strong><\/p>\n\n\n\n

In the water conservancy industry, bearing housing sensors are widely used.gate hoist<\/strong>Load monitoring of drum bearing housings in lifting equipment (sluice gates, dams)<\/a>By measuring the stress on the gate hoist drum bearings in real time, the safe and reliable operation of the gate is ensured.<\/a>.also,Screw gate hoist<\/strong>Bearing housing sensors are also commonly used for load protection.<\/p>\n\n\n\n

3. Metallurgical and rolling mill equipment<\/strong><\/p>\n\n\n\n

In the metallurgical industry, bearing housing sensors can be used...Online detection of rolling mill bearing housing clearance<\/strong>By acquiring force changes through sensors, the system reflects the real-time gap information between the rolling mill bearing housing and the archway, providing data support for equipment maintenance. It can also be used for weighing and measurement on metallurgical crane electronic scales.<\/p>\n\n\n\n

4. Conveying and Weighing System<\/strong><\/p>\n\n\n\n

Bearing housing sensors are widely used inConveyor belt weighing<\/strong>The system achieves online material metering by real-time measurement of the load beneath the conveyor belt support bearing housing. It can also be used for...Automated equipment<\/strong>Force value monitoring and process control.<\/p>\n\n\n\n

5. Other industrial sectors<\/strong><\/p>\n\n\n\n

Bearing housing sensors are also used inport terminals<\/strong>Overload protection of lifting equipmentMining vehicles<\/strong>The lifting system tension monitoring,Rail transit<\/strong>Applications include bearing load testing of equipment. Some specially designed bearing housing sensors can also be used in applications requiring...Wireless monitoring<\/strong>Application scenarios.<\/p>\n\n\n\n

V. Key Points for Selection<\/h3>\n\n\n\n

The following factors need to be considered when selecting a suitable bearing housing sensor:<\/p>\n\n\n\n