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This section provides an overview for bearing temperature sensors as well as their applications and principles. Also, please take a look at the list of 19 bearing temperature sensors manufacturers and their company rankings.
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A bearing temperature sensor is a temperature sensor used to measure the temperature of bearings and detect abnormalities.
Bearings typically increase in temperature after the start of operation, reaching a steady state at a temperature 10 to 40°C higher than the ambient temperature after a certain period. If the bearing temperature does not stabilize and continues to rise abnormally, it indicates a malfunction that needs to be addressed. Bearing temperature sensors are used to detect such malfunctions early. Particularly critical bearings often use temperature sensors to prevent damage like seizure, which can lead to equipment downtime.
Bearing temperature sensors are used to monitor the temperature of bearings in various machines. By measuring the internal temperature of bearings, they help quickly detect abnormal temperature rises, enabling rapid detection of malfunctions and prevention of accidents.
Bearings are mechanical components used to support rotating bodies such as shafts smoothly and accurately. They are also known as bushings. Bearings are widely used in industrial machinery, automobiles, aircraft, railway vehicles, household appliances, and other industrial products.
In particular, in piston engines like diesel engines, bearings support the crankshaft at the correct position, allowing it to rotate within the engine block (main bearing). Diesel engines are used in various applications, including ships, power generation, and industrial uses.
Bearings start to gradually increase in temperature as soon as they begin to operate, typically reaching a steady state after 1-2 hours. The normal temperature of bearings depends on the machine's heat capacity, heat dissipation, speed, and load. If there is a malfunction, the bearing temperature will rise rapidly and become abnormally high. Common causes of abnormal temperature rise include:
Bearing temperature sensors can estimate the internal temperature of the bearing by measuring the temperature outside the bearing chamber or directly measure the outer ring temperature of the bearing using oil holes. Some products can be directly screwed into the grease nipple mounting hole of the bearing.
The sensor mechanism for detecting temperature includes thermocouples and resistance temperature detectors (RTDs). A thermocouple is a temperature sensor that uses the electromotive force generated by the temperature difference between two connected metals. Thermistors and RTDs measure temperature by correlating material resistance with temperature. Thermistors are characterized by their ability to measure within a narrow temperature range with high sensitivity and small size. RTDs, on the other hand, can cover a wide temperature range with good linearity but are less sensitive than thermistors.
Various bearing temperature sensors are available on the market, with different operating temperature ranges, such as -40 to 105°C, -15 to 60°C, and up to 1200°C. Some products can sound an alarm at a specified temperature.
For diesel engines, bearing temperature sensors can be paired with lubricant oil sensors that measure the temperature of the oil rising to the piston crown, allowing for comprehensive temperature monitoring. Some products offer complete wireless capabilities through wireless communication and self-powering systems, and others are powered by lithium batteries.
Additionally, there are sensors that can simultaneously measure vibration speed, acceleration envelope, and temperature, as well as sensors that can communicate with tablets, smartphones, or smartwatches via Bluetooth. Many products are also equipped for cloud integration. Given their use in harsh industrial conditions, many sensors meet standards for waterproofing, dustproofing, fire resistance, and explosion proofing.
*Including some distributors, etc.
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Burns Engineering Inc., founded in 1960 and based in Eden Prairie, Minnesota, is a manufacturer and supplier specializing in temperature measurement devices. The company's product portfolio includes sanitary thermowells, cryogenic probes, and wireless transmitters. These products find applications in various industries, including chemical processing, food and beverage, and the oil and gas industry. The company offers services including technical support and calibration of temperature measurement devices. The company is ISO 9001:2015 certified, with sales representatives in Canada and Ireland.
Danfoss was founded in 1933 in Nordborg, Denmark where it remains today. The company serves automotive, food & beverage, energy & natural resources, wastewater, and mobile hydraulics industries as a manufacturer of power systems and industrial hydraulics. The company operates through three business segments: Danfoss Power Solutions, Danfoss Climate Solutions, and Danfoss Drives. Danfoss Power Solutions produces electronic controls, hydraulic power units, and cylinders. Climate Solutions produces heat exchangers, burner components, hydraulic heating, and sight glasses. Drives produce gear motors, low and medium voltage drives, and various software solutions for operating drives.
Electro-Sensors, Inc. operates as a manufacturer of precision sensors and monitoring systems, established in 1968 and headquartered in Minnesota. The company specializes in providing products and services for industries such as industrial manufacturing, agriculture, and material handling.Its offerings include speed sensors, temperature sensors, and hazard monitoring systems. These products are used for precision monitoring and safety assurance, enhancing operational efficiency and safety measures in the industries it serves through its precision sensor and monitoring solutions.
Seedburo Equipment Company is a manufacturer and distributor of agricultural equipment since 1912 in Illinois. The company designs handling, testing, and grading equipment for grain, feed and seed industries and various agricultural processes such as Dividers, Moisture Testers, Grain Inspection, and Grading equipment, and seed counting and analysis equipment. There are also scales and balances, hemp and coffee equipment, Sieve Shakers, Test Sieves, and Screens amongst others that collectively serve the Agribusiness Industries.
Founded in 1989, STI Vibration Monitoring is a world leader in the manufacturing and supply of vibration monitoring systems and accessories for predictive maintenance. STI specializes in low-cost alternatives to large "rack based" equipment by introducing single channel transmitters and monitors for vibration, position, and temperature, allowing standard, balance of plant equipment an affordable and reliable monitoring alternative. In addition, STI offers a complete line of accelerometers, extension cables, BNC junction boxes, test equipment, mounting hardware, and complete Machinery Monitoring Systems to support your sites maintenance program. Save time on your current walk around program by using permanent mounted accelerometers and BNC boxes for local connections to the machine’s sensors. Improvements in data reliability, acquisition time and analysis will be immediate.
H&B Sensors, established in 1978 in Bognor Regis, England, is a manufacturer of temperature, Level and Pressure measurement sensing equipment. The company specializes in designing and manufacturing advanced sensing solutions for various industries. Their product category includes temperature sensors, level sensors, RTD temperature sensors, and pressure sensors to name a few. These solutions find diverse applications in industries such as industrial automation, environmental monitoring, and healthcare, offering precise and stable data acquisition. The benefits of these products comprise improved process control, enhanced system performance, and cost-effective monitoring.
Sterling Sensors UK Ltd was founded in 1967 and is a manufacturer of temperature sensors located in Oldham, United Kingdom. It specializes in producing thermocouples, RTDs, thermistors, handheld probes, and other temperature sensors that are suitable for various industries applications, such as chemical, food, and automation industries. It also offers additional services including UKAS traceable calibration and repair. The company operates under ISO 9001 standards and has served its products to customers from over 30 countries.
AMOT, established in 1948 and based in Houston, Texas, United States, is a manufacturer of energy control valves, safety, and monitoring products. The company manufactures products such as temperature control valves, air and gas control valves, diesel engine safety products, and control products for engines, compressors, turbines, and rotating equipment. These products serve various industries, including oil & gas, marine, power generation, and rail/transportation. The company's manufacturing units hold two certifications: ISO 9001 Quality Management System Certification and ISO 14001 Environmental Management System Certification.
KONGSBERG, founded in 1814 and headquartered in Kongsberg, Norway, is a developer and manufacturer of advanced technology and solutions for the global maritime technology market. The company offers advanced maritime technologies, including navigation, automation, and communication systems, as well as propulsion for ships and offshore vessels. It also provides solutions for defense and aerospace applications, like anti-submarine warfare, missile systems, and space technology, along with software and digital solutions for various industries and technologies for marine resource exploration. The company holds ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, and ISO/IEC 27001:2013 international quality certifications.
Thermal Detection is an ISO 9001:2015-certified manufacturer of temperature sensors and related accessories that was established in 1997 in Stockton-on-Tees, England, United Kingdom. The company’s products include temperature probes built to various standards and formats, steam quality testing kits for pharmaceutical standard validation, and temperature transmitters for signal relay and conversion. It also offers infrared cameras for contactless temperature analysis and technical support services. The company’s products are used in the power generation and industrial processing sectors.
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Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
5 | 62.5% |
|
United Kingdom
|
2 | 25.0% |
|
Turkey
|
1 | 12.5% |
